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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

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FORM 20-F

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(Mark One)

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Date of event requiring this shell company report

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For the transition period from                       to                        

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Commission file number: 001-36397

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Securities registered or to be registered pursuant to Section 12(b) of the Act.

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*     Not for trading, but only in connection with the listing on The Nasdaq Global Select Market of American depositary shares.

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Securities registered or to be registered pursuant to Section 12(g) of the Act.

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Securities for which there is a reporting obligation pursuant to Section 15(d) of the Act.

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As of December 31, 2020, there were 227,687,583 ordinary shares outstanding, par value $0.00025 per share, being the sum of 125,908,625 Class A ordinary shares and 101,778,958 Class B ordinary shares.

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Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act.

☒ Yes   ◻ No

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If this report is an annual or transition report, indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.

◻ Yes   ⌧ No

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Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.

⌧ Yes   ◻ No

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Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).

⌧ Yes   ◻ No

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Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” and “emerging growth company” in Rule 12b-2 of the Exchange Act. (Check one):

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If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards† provided pursuant to Section 13(a) of the Exchange Act. ◻

†     The term “new or revised financial accounting standard” refers to any update issued by the Financial Accounting Standards Board to its Accounting Standards Codification after April 5, 2012.

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Indicate by check mark whether the registrant has filed a report on and attestation to its management's assessment of the effectiveness of its internal control over financial reporting under Section 404(b) of the Sarbanes-Oxley Act (15 U.S.C. 7262(b)) by the registered public accounting firm that prepared or issued its audit report. ☒

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Indicate by check mark which basis of accounting the registrant has used to prepare the financial statements included in this filing:

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If “Other” has been checked in response to the previous question, indicate by check mark which financial statement item the registrant has elected to follow.

☒ Item 17   ◻ Item 18

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If this is an annual report, indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

☐ Yes   ☒ No

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(APPLICABLE ONLY TO ISSUERS INVOLVED IN BANKRUPTCY PROCEEDINGS DURING THE PAST FIVE YEARS)

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Indicate by check mark whether the registrant has filed all documents and reports required to be filed by Sections 12, 13 or 15(d) of the Securities Exchange Act of 1934 subsequent to the distribution of securities under a plan confirmed by a court.

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◻ Yes   ◻ No

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INTRODUCTION

In this annual report, except where the context otherwise requires and for purposes of this annual report only:

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INFORMATION REGARDING FORWARD-LOOKING STATEMENTS

This annual report contains forward-looking statements that involve risks and uncertainties. All statements other than statements of current or historical facts are forward-looking statements. These statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from those expressed or implied by the forward-looking statements.

You can identify these forward-looking statements by words or phrases such as “may,” “will,” “expect,” “anticipate,” “aim,” “estimate,” “intend,” “plan,” “believe,” “likely to” or other similar expressions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy and financial needs. These forward-looking statements include, but are not limited to, statements about:

You should thoroughly read this annual report and the documents that we refer to in this annual report with the understanding that our actual future results may be materially different from and worse than what we expect. Other sections of this annual report include additional factors which could adversely impact our business and financial performance. Moreover, we operate in an evolving environment. New risk factors and uncertainties emerge from time to time and it is not possible for our management to predict all risk factors and uncertainties, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. We qualify all of our forward-looking statements by these cautionary statements.

You should not rely upon forward-looking statements as predictions of future events. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, future events or otherwise.

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PART I

Item 1.  Identity of Directors, Senior Management and Advisers

Not applicable.

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Item 2.  Offer Statistics and Expected Timetable

Not applicable.

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Item 3.  Key Information

A.Selected Financial Data

The following table presents the selected consolidated financial information of our company. Our selected consolidated statements of operations data presented below for the years ended December 31, 2018, 2019 and 2020 and our selected consolidated balance sheets data as of December 31, 2019 and 2020 have been derived from our audited consolidated financial statements included elsewhere in this annual report. Our selected consolidated statements of operations data presented below for the years ended December 31, 2016 and 2017 and our selected consolidated balance sheets data as of December 31, 2016, 2017 and 2018 have been derived from our consolidated financial statements which are not included in this annual report. Our consolidated financial statements are prepared in accordance with U.S. GAAP.

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You should read the selected consolidated financial information in conjunction with our consolidated financial statements and related notes and “Item 5. Operating and Financial Review and Prospects” included elsewhere in this annual report. Our historical results are not necessarily indicative of our results expected for future periods.

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B.Capitalization and Indebtedness

Not applicable.

C.Reasons for the Offer and Use of Proceeds

Not applicable.

D.Risk Factors

Risks Relating to Our Business

If we fail to grow our active user base, or if user engagement on our platform declines, our business, financial condition and operating results may be materially and adversely affected.

The growth of our active user base and the level of user engagement are critical to our business. We had 521 million MAUs and 225 million average DAUs in December 2020. Our business has been and will continue to be significantly affected by our success in growing and retaining massive active users and increasing their overall level of engagement on our platform, including their engagement with promoted feeds, other advertising and marketing products and value-added services on our platform. We anticipate that our user growth rate will slow over time as the size of our user base increases and as we achieve higher market penetration in China’s internet population. To the extent our user growth rate slows or the number of our users declines, our success will become increasingly dependent on our ability to retain existing users and enhance user activities and stickiness on the platform. If people do not perceive content and other products and services on our platform to be interesting and useful, we may not be able to retain and attract users or increase their engagement. A number of user-oriented websites and mobile applications that achieved early popularity have since seen their user bases or levels of engagement decline, in some cases precipitously. There is no guarantee that we will not experience a similar erosion of our active user base or engagement level. A number of factors could potentially negatively affect user growth and engagement, including if:

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We have undertaken various initiatives to stimulate the growth of our users and user engagement. For instance, in addition to the microblogging service with which Weibo originally started, we have added functionalities such as trends, topics, search, short videos, live streaming and interest-based information feeds over the years, which we believe have helped broaden our appeal and generate more user traffic and engagement. However, there can be no assurance that these and other strategies will continue to be effective. If we are unable to increase our user base and user engagement, our platform could be less attractive to potential new and existing users and customers, which would have a material and adverse impact on our business, financial condition and operating results.

If our users and platform partners do not continue to contribute content or their contributions are not valuable to other users, we may experience a decline in user traffic and user engagement.

Our success depends on our ability to provide users with interesting and useful content, which in turn depends on the content contributed by our users and platform partners. We believe that one of our competitive advantages is the quality, quantity and open nature of the content on Weibo, and that access to rich content is one of the main reasons users visit Weibo. We seek to foster a broader and more engaged user community, and we encourage influencers, such as celebrities, KOLs and other public figures, and platform partners, such as multi-channel networks, (the “MCNs”), media outlets and organizations with media rights, to use our platform to express their views and share interesting, and high quality content.

Among all our users, influencers have been contributing increasingly interesting and attractive contents on our platform. We provide these content creators with the opportunity to monetize their social assets on Weibo through advertising, e-commerce, paid-subscription, tipping and other means. If content creators do not see significant value from their social marketing activities on Weibo and find monetization on Weibo inadequate, we may have to subsidize them through direct content cost payout, which may have an adverse and material impact on our business and operating results. Alternatively, content creators may choose to switch to other platforms and contribute less or no content to Weibo, which may cause our user base and user engagement to decline and our customers view our products and services less attractive for advertising and marketing purposes and consequently reduce their advertising spending on our platform.

If users and platform partners do not continue to contribute content to Weibo due to policy changes, their use of alternative communication channels or any other reasons, and we are unable to provide users with interesting, useful and timely content, our user base and user engagement may decline. If we experience a decline in the number of users or the level of user engagement, customers may not view our products and services as attractive for their advertising and marketing expenditures and may reduce their spending with us, which would materially harm our business and operating results.

We rely on our partnership program with channel partners, which mainly include application pre-install partners, programmatic buying partners and application marketplaces, to drive traffic to our platform, and if our partnership program becomes less effective or if the smartphone market slows down compared to the prior years, traffic to our platform could decline and our business and operating results could be adversely affected.

We work with application (app) pre-install partners, such as key domestic handset manufacturers for user acquisition and activation. Due to intense competition in the marketplace, app pre-install partners may raise prices to a point where it becomes cost prohibitive for us to rely on them for Weibo user activation, or they may decide to discontinue their services to us altogether. The partnership also highly depends on the total amount of handset shipment and sales of our partners, which may fluctuate or slow down compared with prior years.

We also work with programmatic buying partners, such as top applications for traffic direction and user activation. Due to the real time bidding nature of programmatic buying, the prices for inventories on top applications may fluctuate or surge to a point where it becomes less cost effective for us to invest in the channel. In addition, inaccurate user targeting and the possible high churn rate observed during the traffic direction step may also limit the overall effectiveness of the partnership.

In addition, we work with application marketplaces, including app stores of key domestic handset manufacturers as well as other major application marketplaces, such as Tencent App Store, Baidu Mobile Assistant and 360 Mobile Assistant, to drive downloads of our mobile applications. In the future, Google (Android), Apple or other operators of application marketplaces may make changes to their marketplaces and make access to our products and services more difficult.

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If we are unable to compete effectively for user traffic or user engagement, our business and operating results may be materially and adversely affected.

Competition for user traffic and user engagement is intense and we face strong competition in our business. Major Chinese internet companies, such as Tencent and Bytedance, compete directly with us for user traffic and user engagement, content, talent and marketing resources. As a social media featuring social networking services and messenger features, we are subject to intense competition from providers of similar services as well as potentially new types of online services. These services include (i) messengers and other social apps and sites, such as Weixin/WeChat, QQ Mobile, Qzone Mobile and Momo; (ii) news apps and sites, such as those operated by other major internet companies, including Tencent, Bytedance, Baidu, NetEase, Sohu and Phoenix News Media; (iii) multimedia apps (photo, video and live streaming, etc.), such as Douyin/TikTok, Kuaishou, Bilibili, iQiyi, Tencent Video, Youku, Xigua Video, Red (Xiaohongshu), Momo and JOYY. In addition, as a media platform in nature, we also compete with traditional media companies for audiences and content.

We also compete with both offline and online games for the time and money of gamers. We offer social commerce solutions to our customers that enable them to conduct e-commerce on our platform. Consequently, our offerings compete with e-commerce companies and online verticals that enable merchants to conduct e-commerce, including location-based services and online-to-offline services. In addition to direct competition, we face indirect competition from companies that sponsor or maintain high traffic volume websites or provide an initial point of entry for internet users, including but not limited to providers of search services, web browser and navigation pages, such as Baidu, UC Web and Qihoo 360. We may also face competition from global social media, social networking services and messengers, such as Facebook, Instagram, Twitter, Youtube, TikTok, WhatsApp, Facebook Messenger, Snapchat, Pinterest, Line and Kakao Talk. Some of our competitors may have substantially more cash, traffic, technical and other resources than we do. We may be unable to compete successfully against these competitors or new market entrants, which may adversely affect our business and financial performance.

We believe that our ability to compete effectively for user traffic and user engagement depends upon many factors both within and beyond our control, including:

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We may not be able to maintain or grow our revenues or our business.

We have experienced significant growth in revenues and in our business in recent years. Our ability to continue to grow our revenues depends on a number of factors. See “Item 5. Operating and Financial Review and Prospects—A. Operating Results—Factors Affecting Our Results of Operations” for a detailed discussion.

Our revenue growth also depends on our ability to continue to grow our core businesses, newly-developed businesses, as well as businesses we have acquired or which we consolidated. We are exploring and will continue to explore in the future new business initiatives, including in industries and markets in which we have limited or no experience, as well as new business models, that may be untested. Developing new businesses, initiatives and models requires significant investments of time and resources, and may present new and difficult technological, operational and compliance challenges. Many of these challenges may be specific to business areas with which we do not have sufficient experience. We may encounter difficulties or setbacks in the execution of various growth strategies and these growth strategies may not generate the returns we expect within the timeframe we anticipate, or at all.

In addition, our overall or segment revenue growth may slow or our revenues may decline for other reasons, including increasing competition and slowing growth of China’s smartphone market, disruptions to China’s economy or the global economy from pandemics, natural disasters or other events, as well as changes in the geopolitical landscape, government policies or general economic conditions. As our revenue grows to a higher base level, our revenue growth rate may slow in the future. Furthermore, due to the size and scale we have achieved, our user base may decrease, not continue to grow as quickly or at all.

We generate a substantial majority of our revenues from online advertising and marketing services. If we fail to generate sustainable revenue and profit through our advertising and marketing services, our result of operations could be materially and adversely affected.

We started to generate revenues in 2012 through advertising and marketing services, and to a less extent also through value-added services. Ever since then, advertising and marketing services have been contributing a substantial majority of our total revenues, accounting for approximately 88% of our revenues in 2020. Therefore, any failure to continue generating sustainable revenue and profit through our advertising and marketing services could materially harm our business.

Compared with traditional advertising and marketing solutions, online advertising and marketing services are evolving rapidly and sometimes considered experimental. In addition, we, as well as the whole industry, are endeavoring to develop novel forms of advertising and marketing services. As a result, we cannot guarantee that the advertising and marketing strategies we have adopted can generate sustainable revenues and profit. Particularly, as is common in the industry, our advertising and marketing customers do not have long-term commitments with us. In addition, some potential new customers may view our advertising and marketing services as unproven, and we may need to devote additional time and resources to convince them. Customers will not continue to do business with us or may only be willing to advertise with us at reduced prices if we do not deliver advertising and marketing services in an effective manner, or if they do not believe that their investment in advertising and marketing with us will generate a competitive return relative to alternative advertising platforms.

Our ability to add new customers and increase spending of existing customers can be particularly affected by our ability to provide timely and reliable measurement analysis of customers’ advertising campaigns on Weibo, as some customers, especially key accounts, rely on advertisement measurement to evaluate advertising effectiveness. We are working with third-party measurement firms to provide these data services to our customers but the online advertisement measurement market in China is nascent. We cannot assure you that our measurement partners will be able to provide measurement to the satisfaction of our customers. If our customers are unable to obtain measurement results on their marketing campaigns on Weibo to their satisfaction, our customers may be less willing to maintain or expand their advertising spending on our platform, and our financial conditions, results of operations and prospects may be materially and adversely affected.

We also need to adapt our advertising and marketing service offerings to the way users consume contents on our platforms. We introduced mobile-adapted promoted marketing solutions, such as promoted feeds, to our advertisers as our mobile products gain more user traffic. Users’ preferences on content format are also evolving. Online content in video format has become increasingly prevalent in recent years. If we are unable to adapt our products and services for the video environment and develop products and services to generate video advertising revenues, especially for the mobile environment, our results of operations and prospects may be materially and adversely affected.

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Advertisements shown on our platform may subject us to penalties and other administrative actions.

Under PRC advertising laws and regulations, we are obligated to monitor the advertising content shown on our platform to ensure that such content is true and accurate and in compliance with applicable PRC laws and regulations. PRC advertising laws and regulations impose prohibitions and restrictions on certain types of advertisements. For instance, advertisements for certain products, such as tobacco, are not allowed to be publicly posted, and advertisements for other products and services, such as alcohol, medical treatment, pharmaceuticals or medical devices, healthcare food, real estate and financial products, are subject to certain restrictions on content and other requirements. In addition, where a review by relevant governmental authorities is required before certain types of advertisements can be posted, such as advertisements for pharmaceuticals and medical devices, we are obligated to confirm that such review has been performed and approval has been obtained.

The Chinese government may from time to time promulgate new advertising laws and regulations, including possible additional restrictions on online advertising services. In addition, recent activities and technology trends in advertising, such as links in comments or posts, and the proliferation of short video and live streaming platforms, with paid promotions that are frequently not marked as advertising, have made advertising content monitoring more challenging. Moreover, technologies and tools attempting to circumvent, evade or deceive our advertisement content monitoring system are evolving, which makes it more complicated for us to monitor and review the advertisements on our platform. When we discover advertisements that violate laws and regulations, we will timely take corresponding measures. Although we have made significant efforts to ensure that the advertisements shown on our platform are in full compliance with applicable PRC laws and regulations, we cannot ensure that we will be in compliance at all times with the requirements under any new laws and regulations. Failure to comply with these obligations may subject us to fines and other administrative penalties.

If advertisements shown on our platform are in violation of relevant PRC advertising laws and regulations, we may be subject to penalties. For example, In 2018, Beijing Haidian Market Supervision Administration issued a decisions to impose an administrative penalty on Weimeng, including a fine of RMB200,000 on Weibo and confiscation of the advertising revenue of RMB1,171.19, because the authorities was of the opinion that certain advertisements published on Weibo contained content that violated “good social customs.” We paid the fine and cooperated with the relevant government authorities to take corrective measures as required. However, there can be no assurance that there will not be any further penalties, which may have a material and adverse effect on our business, financial condition, results of operations and prospects, brand and reputation.

If we are unable to compete effectively for advertising and marketing spending, our business and operating results may be materially and adversely affected.

In addition to intense competition for users and user engagement, we also face significant competition for advertising and marketing spending. A substantial majority of our revenues are currently generated through advertising and marketing services. We compete against online and mobile businesses that offer such services, mainly including Tencent, Bytedance, Baidu, Kuaishou, iQiyi, NetEase and Sohu. We also compete with internet companies that offer online-to-offline (O2O), purchase solutions and other performance-based advertising and marketing services and digital media tailored to specific vertical industries including fast moving consumer goods, IT, automobile, e-commerce, entertainment and travel, such as Meituan, Autohome, Bitauto and Qutoutiao. We also compete against traditional media outlets, such as television, radio and print, for advertising and marketing budgets.

In order to grow our revenues and improve our operating results, we must increase our market share of advertising and marketing spending relative to our competitors, many of which are larger companies that offer more traditional and widely accepted advertising products. In addition, some of our larger competitors have substantially broader product or service offerings and leverage their relationships based on other products or services to gain additional share of advertising and marketing budgets.

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We believe that our ability to compete effectively for advertising and marketing spending depends upon many factors both within and beyond our control, including:

Significant acquisitions and consolidation by and among our actual and potential competitors may present heightened competitive challenges for our business. Acquisitions of our platform partners by our competitors could result in reduced content and functionality of our products and services. Consolidation may also enable our larger competitors to offer bundled or integrated products that feature alternatives to our platform. Reduced content and functionality of our products and services, or our competitors’ ability to offer bundled or integrated products that compete directly with us, may cause our user base and user engagement to decline and customers to reduce their spending with us. If we are not able to compete effectively for advertising and marketing spending, our business and operating results may be materially and adversely affected.

Our limited operating history makes it difficult to evaluate our future prospects.

The market for social media is still evolving and may not develop as expected. People who are not our users, customers or platform partners may not understand the value of our products and services and new users, customers or platform partners may initially find our products and services confusing. There may be a perception that our products and services are only useful to users who post, or to influential users with large audiences. Convincing potential new users, customers and platform partners of the value of our products and services is critical to increasing the number of our users, customers and platform partners and to the success of our business. Although we have experienced continued user growth as shown by the increase of our MAU and DAU for the past few years, some of our peers may have experienced a decline in user base. If microblogging, social media, online media or social product, in general, declines in popularity among Chinese internet users, we may be unable to grow our user base or maintain or increase user engagement.

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We have a limited operating history. We launched Weibo in August 2009 and began to generate revenues in 2012, which makes it difficult to effectively assess our future prospects or forecast our future results. You should consider our business and prospects in light of the risks and challenges we encounter or may encounter in this developing and rapidly evolving market. These risks and challenges include our ability to, among other things:

If we fail to educate potential users, customers and platform partners about the value of our products and services, if the market for our platform does not develop as we expect or if we fail to address the needs of this market, our business will be harmed. Failure to adequately address these or other risks and challenges could harm our business and cause our operating results to suffer.

Alibaba is our largest customer and an important strategic partner. If we fail to maintain our collaboration with Alibaba, our results of operations and growth prospect may be adversely and materially affected.

From April 2013 to January 2016, we had a strategic collaboration with Alibaba and its affiliated entities to jointly explore social commerce and develop innovative marketing solutions to enable merchants on Alibaba’s e-commerce platforms to better connect and build relationships with our users. Revenues generated from the strategic collaboration with Alibaba accounted for approximately 30% of our revenues from 2013 to 2015. Although revenue contribution by Alibaba has declined as a percentage to our total revenues in recent years, as a result of the rapid growth of our business scale as well as our strategy to diversify revenue sources after the strategic collaboration agreement expired in early 2016, Alibaba remains as our largest customer. More importantly, we rely on them to enable us to offer e-commerce advertising solutions to brands and merchants on both of our platforms. If we are unable to either maintain strong cooperation with Alibaba or find other customers that can bring in similar amount of revenues to offset the possible decline of revenue from Alibaba or the revenue associated with Alibaba’s ecosystem, our results of operations and growth prospects may be adversely and materially affected.

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Our future performance depends in part on support from our platform partners, particularly copyright content providers and MCNs.

Although most of the content on our platform come from individual users, platform partners have become an increasingly important source of high-quality content. We believe user engagement with our products and services depends in part on the quality of applications and content generated by our platform partners, particularly copyright content providers and the MCNs. Copyright content providers have traditionally been an important source of premium content on our platform. Meanwhile, as content on our platform expands into various new formats, such as short videos, the role of MCNs as talent agencies for professional content creators is becoming increasingly important. We have built a large network of MCNs in different domains, such as video and e-commerce, and we rely on these platform partners to incubate and grow content creators so that they share more quality content on Weibo. If we are unable to enjoy continued collaboration with copyright content providers and expand our network of MCNs and incentivize them to share more content, our content offerings may not be as robust and competitive and our user base and user engagement may be adversely and materially affected.

We also work closely with third-party developers to build Weibo-integrated applications to enhance Weibo’s functionalities. Such existing and prospective developers may not be successful in building, growing, or monetizing mobile and/or web applications that create, maintain and enhance user engagement. Additionally, developers may choose to build on other platforms rather to integrate with Weibo. We are continuously seeking to balance the distribution objectives of our developers with our desire to provide an optimal user experience, and we may not be successful in achieving a balance that continues to attract and retain such developers. If we are not successful in our efforts to continue to grow the number of developers that choose to build products that integrate with Weibo or if we are unable to continue to build and maintain good relationships with such developers, our user growth and user engagement and our financial results may be adversely and materially affected.

Our new products, services and initiatives and changes to existing products, services and initiatives could fail to attract users and customers or generate revenues.

Our ability to increase the size and engagement of our user base, attract customers and generate revenues will depend in part on our ability to create and offer successful new products and services. We may introduce significant changes to our existing products and services or develop and introduce new products and services, including technologies with which we have little or no prior development or operating experience. If new or enhanced products or services fail to engage users, customers and platform partners, we may fail to attract or retain users or to generate sufficient revenues to justify our investments, and our business and operating results could be adversely affected. In addition, we may launch strategic initiatives that do not directly generate revenues but which we believe will enhance our attractiveness to users, customers and platform partners. We may not be successful in future efforts to generate revenues from our new products or services. If our strategic initiatives do not enhance our ability to monetize our existing products and services or enable us to develop new approaches to monetization, we may not be able to maintain or grow our revenues or recover any associated development costs and our operating results may be adversely affected.

If we fail to effectively manage our growth, our business and operating results could be harmed.

We operate our business in a rapidly evolving industry and highly competitive market, which will continue to place significant demands on our management, operational and financial resources to sustainably grow our business. We may encounter difficulties as we establish and expand our operations, product development, sales and marketing, and general and administrative capabilities. We face significant competition for talented employees from other high-growth companies, which include both publicly traded and privately held companies, and we may not be able to hire new employees quickly enough to meet our needs. To attract highly skilled personnel, we have had to offer, and believe we will need to continue to offer, competitive compensation packages. As we continue to grow, we are subject to the risks of over-hiring, over-compensating our employees and over-expanding our operating infrastructure, and to the challenges of integrating, developing and motivating a growing employee base. In addition, we may not be able to innovate or execute as quickly as a smaller and more efficient organization. If we fail to effectively manage our hiring needs and successfully integrate our new hires, our efficiency and ability to meet our forecasts and our employee morale, productivity and retention could suffer, and our business and operating results could be adversely affected.

As we strive to broaden our user base, increase user engagement, and develop new features and products, we often have to proactively devote significant resources to accommodate future growth and to meet market demand. If market condition changes or we misjudged future demand, however, we may incur high costs and expenses relative to our return, which could negatively affect our operating results. In addition, copyright content is costly and the competition for it is fierce. Mismanagement of copyright content purchase and usage, such as focus on content that turn out to be less popular or loss of valuable copyright content to competitors, may lead to a disproportional increase in expenses and adversely affect our business.

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Continued growth could also strain our ability to maintain reliable service levels for our users and customers, develop and improve our operational, financial, legal and management controls, and enhance our reporting systems and procedures. Our expenses may grow faster than our revenues, and our expenses may be greater than what we anticipate. Managing our growth will require significant expenditures and allocation of valuable management resources. If we fail to achieve the necessary level of efficiency in our organization as it grows, our business, operating results and financial condition could be harmed.

Our operating results may fluctuate from quarter to quarter, which makes it difficult to predict.

Our quarterly operating results have fluctuated in the past and will fluctuate in the future. As a result, our past quarterly operating results are not necessarily indicators of future performance. Our operating results in any given quarter can be influenced by numerous factors, many of which we are unable to predict or are outside of our control, including:

Given our limited operating history and the rapidly evolving market in which we compete, our historical operating results may not be useful to you in predicting our future operating results. Our limited operating history and our rapid growth make it difficult for us to identify recurring seasonal trends in our business. The advertising industry in China experiences seasonality. Historically, advertising spending tends to be the lowest in the first quarter of each calendar year due to long holidays around the Lunar New Year, and we believe that this seasonality affects our quarterly results. In addition, economic concerns continue to create uncertainty and unpredictability and add risk to our future outlook. An economic downturn in China or globally could cause our advertising and marketing customers to reduce their advertising budgets, and result in other adverse effects that could harm our operating results. Other factors that may cause our operating results to fluctuate include popular sports events, such as the FIFA World Cup and the Olympic Games. Due to our rapid growth and limited operating history, the seasonal trends that we have experienced in the past may not apply to, or be indicative of, our future operating results.

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Spam could diminish the user experience on our platform, which could damage our reputation and deter our current and potential users from using our products and services.

“Spam” on Weibo refers to a range of abusive activities that are prohibited by our terms of service and is generally defined as unsolicited actions that negatively impact other users with the general goal of drawing user attention to a given account, site, product or idea. This includes posting large numbers of unsolicited mentions of a user, duplicate feeds, misleading links (e.g., to malware or click-jacking pages) or other false or misleading content, and aggressively following and un-following accounts, adding users to lists, sending unsolicited invitations, reposting feeds and favoring feeds to inappropriately attract attention. Our terms of service also prohibit the creation of serial or bulk accounts, both manually or using automation, for disruptive or abusive purposes, such as to post spam or to artificially inflate the popularity of users seeking to promote themselves on Weibo. Although we continue to invest resources in reducing spam on Weibo, we expect spammers will continue to seek ways to act inappropriately on our platform. In addition, we expect that increases in the number of users on our platform will result in increased efforts by spammers to misuse our platform. We continuously combat spam, including by suspending or terminating accounts we believe to be spammers and launching algorithmic changes focused on curbing abusive activities. Our actions to combat spam require the diversion of significant time and focus of our engineering team from improving our products and services. If we are unable to effectively manage and reduce spam on Weibo, our reputation for delivering relevant content could be damaged, user engagement could decline and our operational costs could increase.

Privacy concerns relating to our products and services and the use of user information could damage our reputation, deter current and potential users and customers from using Weibo and negatively impact our business.

We collect personal data from our users in order to better understand our users and their needs and to help our customers target specific demographic groups. Concerns about the collection, use, disclosure or security of personal information or other privacy-related matters, even if unfounded, could damage our reputation, cause us to lose users and customers and adversely affect our operating results. While we strive to comply with applicable data protection laws and regulations, as well as our own posted privacy policies and other obligations we may have with respect to privacy and data protection, the failure or perceived failure to comply may result, and in some cases has resulted, in inquiries and other proceedings or actions against us by government agencies or others, as well as negative publicity and damage to our reputation and brand, each of which could cause us to lose users and customers, which could have an adverse effect on our business.

Any systems failure or compromise of our security that results in the unauthorized access to or release of our users’ or customers’ data could significantly limit the adoption of our products and services, as well as harm our reputation and brand and, therefore, our business. We strictly limit third-party developers’ access to user privacy and user data, and we expend significant resources on technology and product development to protect against leakage of user information and other security breaches. Nonetheless, given its great commercial value, our user data may still be misused by third-parties, which could expose us to legal and regulatory risks and seriously harm our business.

The PRC regulatory and enforcement regime with regard to data security and data protection is evolving. The PRC Civil Code and the PRC Cyber Security Law protect individual privacy and personal data security in general by requiring the internet service providers to obtain the consent from internet users prior to the collection, use or disclosure of internet users’ personal data. See “Item 4.B. Information on the Company—Business Overview—Regulation—Regulations on Internet Privacy.” In addition, the Cyber Security Law sets high requirements for the operational security of facilities deemed to be part of the PRC’s “critical information infrastructure.” See “—Risks Relating to Doing Business in China—Substantial uncertainties exist with respect to the interpretation and implementation of Cyber Security Law as well as any impact it may have on our business operations.” Furthermore, if privacy concerns or regulatory restrictions prevent us from selling demographically targeted advertising, we may become less attractive to our customers. In Hong Kong, however, the Hong Kong Personal Data Ordinance provides that an internet company may not collect information about its users, analyze the information for a profile of the user’s interests and sell or transmit the profiles to third parties for direct marketing purposes without the user’s consent. In the European Union, or EU, the General Data Protection Regulation, or GDPR, which came into effect on May 25, 2018, present increased challenges and risks in relation to policies and procedures relating to data collection, storage, transfer, disclosure, protection and privacy, and will impose significant penalties for non-compliance, including for example, penalties calculated as a percentage of global revenue under the GDPR. Since the GDPR only came into effect recently, the potential risks associated with non-compliance therewith are uniquely difficult to predict. Other jurisdictions may have similar prohibitions. Although less than 1% of our revenues in 2020 are generated in Hong Kong, EU and other jurisdictions with similar prohibitions, we hope to attract more users in these jurisdictions and if we are unable to construct demographic profiles of internet users because they refuse to give consent, we will be less attractive to customers and our business could suffer.

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In addition to the possibility of fines, enforcement actions can result in orders requiring us to change our practices, which could have an adverse effect on our business and operating results. In mid-March, 2020, we experienced certain incident of data leakage caused by malicious queries through our application programming interface. On March 21, 2020, the MIIT summoned our representatives to a meeting on this incident and instructed us to take steps to improve data security in accordance with the applicable regulations, including improving our privacy policy, strengthening user information protection and internal data security management, and other measures. We immediately took measures in response to this incident, including upgrading our security interface.  On July 22, 2020, the Cyberspace Administration of China, the Ministry of Industry and Information Technology, the Ministry of Public Security, and the State Administration for Market Regulation jointly held a meeting to, among other things, launch the 2020 Special Rectification Program focusing on identifying and rectifying conducts of various apps in illegal collection of personal facial features and other biometric information, unauthorized recording of users’ voice or access of users’ photos, and unauthorized uploading of personal information. In November 2020, Weibo was identified by the authorities as having misled users to agree to the collection of personal information and failed to list out the purpose and type of personal information collected by certain software development kits on its platforms. Weibo took actions in response to the identified issues and has completed the rectification as required.

New laws or regulations concerning data protection, or the interpretation and application of existing consumer and data protection laws or regulations, which is often uncertain and in flux, may be inconsistent with our practices. Complying with new laws, regulations and orders from competent governmental authorities could cause us to incur substantial costs or require us to change our business practices in a manner materially adverse to our business.

If our security measures are breached, or if our products and services are subject to attacks that degrade or deny the ability of users to access our products and services, our products and services may be perceived as not being secure, users and customers may curtail or stop using our products and services and our business and operating results may be harmed.

Our products and services involve the storage and transmission of users’ and customers’ information, and security breaches expose us to a risk of loss of this information, litigation and potential liability. We experience cyber-attacks of varying degrees on a regular basis, including hacking into our user accounts and redirecting our user traffic to other websites, and we have been able to rectify attacks without significant impact to our operations in the past. Functions that facilitate interactivity with other websites, such as Weibo Connect, which among other things allows users to log in to partner websites using their Weibo identities, could increase the scope of access of hackers to user accounts. Our security measures may also be breached due to employee error, malfeasance or otherwise. Additionally, outside parties may attempt to fraudulently induce employees, users or customers to disclose sensitive information in order to gain access to our data or our users’ or customers’ data or accounts, or may otherwise obtain access to such data or accounts. Since our users and customers may use their Weibo accounts to establish and maintain online identities, unauthorized communications from Weibo accounts that have been compromised may damage their reputations and brands as well as ours. Any such breach or unauthorized access could result in significant legal and financial exposure, damage to our reputation and a loss of confidence in the security of our products and services that could have an adverse effect on our business and operating results. Because the techniques used to obtain unauthorized access, disable or degrade service or sabotage systems change frequently and often are not recognized until launched against a target, we may be unable to anticipate these techniques or to implement adequate preventative measures. If an actual or perceived breach of our security occurs, the market perception of the effectiveness of our security measures could be harmed, we could lose users and customers and we may be exposed to significant legal and financial risks, including legal claims and regulatory fines and penalties. Any of these actions could have a material and adverse effect on our business, reputation and operating results.

We rely on assumptions and estimates to calculate certain key operating metrics, and real or perceived inaccuracies in such metrics may harm our reputation and negatively affect our business.

The numbers of daily and monthly active users of Weibo, average spending per advertiser and number of advertisement customers are calculated using internal company data that has not been independently verified. While these numbers are based on what we believe to be reasonable calculations for the applicable periods of measurement, there are inherent challenges in measuring usage and user engagement across our large user base. For example, there are a number of false or spam accounts in existence on Weibo. Although we continuously combat spam by suspending or terminating these accounts, our active user number may include a number of false or spam accounts and therefore may not accurately represent the actual number of active accounts. We treat each account as a separate user for purposes of calculating our active users, because it may not always be possible to identify people and organizations that have set up more than one account. Additionally, some accounts used by organizations are used by many people within the organization. Accordingly, the calculations of our active users may not accurately reflect the actual number of people or organizations using Weibo.

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We regularly review and may adjust our processes for calculating our internal metrics to improve their accuracy. Our measures of user growth and user engagement may differ from estimates published by third parties or from similarly titled metrics used by our competitors due to differences in methodology. If customers, platform partners or investors do not perceive our user metrics to be accurate representations of our user base or user engagement, or if we discover material inaccuracies in our user metrics, our reputation may be harmed and customers and platform partners may be less willing to allocate their spending or resources to Weibo, which could negatively affect our business and operating results.

Our business is highly sensitive to the strength of our brand and market influence, and we may not be able to maintain current or attract new users, customers and platform partners for our products and services if we do not continue to increase the strength of our brand and develop new brands successfully in the marketplace.

Our operational and financial performance is highly dependent on the strength of our brand and market influence. Such dependency will increase further as the number of internet and mobile users as well as the number of market entrants in China grows. In order to retain existing and attract new internet users, customers and platform partners, we may need to substantially increase our expenditures to create and maintain brand awareness and brand loyalty.

In addition, we receive a high degree of media coverage in Chinese communities around the world. Negative coverage in the media of our company, including about our product quality and reliability, changes to our products and services, privacy and security practices, litigation, regulatory activity, the actions of our users, or the experience of our users, platform partners and advertisers with our products and services, even if inaccurate, could threaten the perception of our brands. We cannot assure you that we will be able to defuse negative press coverage about our company to the satisfaction of our investors, users, customers and platform partners. If we are unable to defuse negative press coverage about our company, our brand may suffer in the marketplace, our operational and financial performance may be negatively impacted and the price of our ADSs may decline.

User misconduct and inappropriate content may adversely impact our brand image, business and results of operations, and we may be held liable for information or content displayed on, retrieved from or linked to our app or website or distributed to our users.

Our platform enables users to discover, create, and distribute content and interact with others on our platform in real time. As it is difficult to control user behavior in real time, our platform may be misused by individuals or groups of individuals who engage in, among other things, immoral, inappropriate, disrespectful, fraudulent or illegal activities. While we have developed technologies and a series of measures to detect inappropriate content and activities, we cannot guarantee that we will be able to fully prevent inappropriate content from being posted on our platform or inappropriate activities from being carried out on our platform. Moreover, as we have limited control over the offline behavior of our users, to the extent that such behavior is associated with our platform, our ability to protect our brand image and reputation may be limited. Our business and the public perception of our brand may be materially and adversely affected by misconduct conducted on or linked to our platform. It is possible that our users may engage in conversations or activities on our platform that may be deemed illegal under applicable laws and regulations. We may be subject to fines or other disciplinary actions, including suspension of certain services, if we are deemed to not have taken actions to stop user misconduct or the display of inappropriate or illegal content posted by third parties on our platform or distributed to our users. If any of our users suffers or alleges to have suffered physical, financial or emotional harm arising from any contact initiated on our platform, we may face civil lawsuits or other proceedings initiated by the affected user, or governmental or regulatory actions. Defending such actions could be costly and involve significant time and attention of our management and other resources, which could materially and adversely affect our business, financial condition, results of operations and prospects. There can be no assurance that we can detect all illegal or inappropriate content displayed on, retrieved from or linked to our platform. If we are held liable for any of the aforementioned incidents in the future, our business, financial condition and results of operations may be materially and adversely affected.

If our goodwill or intangible assets become impaired, we may be required to record a significant charge to earnings.

We review our intangible assets for impairment when events or changes in circumstances indicate that the carrying value may not be recoverable, such as a decline in stock price and market capitalization. We test goodwill for impairment at least once a year. If such goodwill or intangible assets are deemed to be impaired, an impairment loss equal to the amount by which the carrying amount exceeds the fair value of the assets would be recognized. We may be required to record a significant charge in our financial statements during the period in which any impairment of goodwill or intangible assets is determined, which would negatively affect our results of operations.

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As of December 31, 2020, the total amount of our goodwill and intangible assets was $208.7 million. A substantial portion of the goodwill and intangible assets arose from the acquisitions of the live streaming business of www.yizhibo.com, or Yizhibo, a live streaming platform in China, in 2018 from Yixia Tech Co., Ltd, or Yixia Tech, and Shanghai Jiamian Information Technology Co., Ltd., or JM Tech, in 2020. Therefore, we may have to reassess and even record impairment loss if the respective industry prospects deteriorate.

The monetization of our services may require users to accept promoted marketing in their feeds or private messages, which may affect user experience and cause a decline in user traffic and a delay in our monetization.

Weibo users typically can log in to their personal accounts to view feeds and private messages from accounts that they have selected to follow. Social platform has been subject to negative comments, and even lawsuits, for introducing promoted advertising into their users’ information feeds. We started to test promoted products on Weibo at the end of 2012 and have also received user complaints. If we are unable to address user complaints adequately, user experience may be negatively affected, the monetization of our products and services may be delayed and our user base or user engagement may decline, which may adversely impact our operations.

New technologies could block our advertisements. Users of PC and mobile devices may enable technical measures that could hinder our traffic growth and limit our monetization opportunities.

Technologies have been developed that can disable the display of our advertisements and that provide tools to users to opt out of our advertising products. Most of our revenues are derived from fees paid to us by customers in connection with the display of advertisements to our users. In addition, our traffic growth is significantly dependent on content viewed via mobile devices, such as smartphones and tablets. Technologies and tools for personal computers and mobile devices, such as operating systems, internet browsers, anti-virus software and other applications, as well as mobile application stores could set up technical measures to divert user traffic, require a fee for the download of our products or block our products and services altogether, which could adversely affect our overall traffic and ability to monetize our products and services.

Our business and growth could suffer if we are unable to hire and retain key personnel.

We depend on the continued contributions of our senior management and other key employees, many of whom are difficult to replace. The loss of the services of any of our executive officers or other key employees could harm our business. Competition for qualified talent in China is intense. Our future success is dependent on our ability to attract a significant number of qualified employees and retain existing key employees. If we are unable to do so, our business and growth may be materially and adversely affected and the trading price of our ADSs could suffer. Our need to significantly increase the number of our qualified employees and retain key employees may cause us to materially increase compensation-related costs, including stock-based compensation.

We have incurred and expect to continue to incur substantial stock-based compensation expenses.

We have adopted share incentive plans in August 2010 and March 2014. See “Item 6. Directors, Senior Management and Employees—B. Compensation—Share Incentive Plans” for a detailed discussion. For the years ended December 31, 2018, 2019 and 2020, we recorded $41.0 million, $61.3 million and $67.1 million, respectively, in stock-based compensation expenses. We will continue to grant stock-based compensation in the future in order to attract and retain key personnel and employees. Consequently, our stock-based compensation expenses may be recurring and even significantly increase in absolute amount, which may have a material adverse effect on our results of operations.

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Future investments in and acquisitions of complementary assets, technologies and businesses may fail and may result in equity or earnings dilution.

We have in the past and may continue to invest in or acquire assets, technologies and businesses that are complementary to our existing business. For example, in October 2018, we acquired a live streaming business of Yizhibo, a live streaming platform in China. In the fourth quarter of 2020, we acquired the majority equity shares of JM Tech, a company operating several online interactive entertainment apps in China, including “Pocket Werewolves.” Our investments or acquisitions may not yield the results we expect. In addition, investments and acquisitions could result in the use of substantial amounts of cash, potentially dilutive issuances of equity securities, significant amortization expenses related to intangible assets and exposure to potential unknown liabilities of the acquired business. Moreover, the cost of identifying and consummating investments and acquisitions, and integrating the acquired businesses into ours, may be significant, and the integration of acquired businesses may be disruptive to our existing business operations. In addition, we may have to obtain approval from the relevant PRC governmental authorities for the investments and acquisitions and comply with any applicable PRC rules and regulations, which may be costly. Our investments and acquisitions may also be subject to merger control review and antitrust investigations under the PRC Anti-Monopoly Law, the Interim Provisions on the Review of Concentrations of Undertakings and other PRC anti-monopoly laws, regulations and guidance. In the event that our investments and acquisitions are not successful, our financial condition and results of operations may be materially and adversely affected.

Our financial results could be adversely affected by our long-term investments.

We periodically review our investments in publicly traded companies, privately held companies, and limited partnerships for impairment. If we conclude that any of these investments is impaired, we will write down the asset to its fair value and take a corresponding charge to our consolidated statements of comprehensive income. For the fiscal years ended December 31, 2018, 2019 and 2020, we recognized impairment charge of $23.6 million, $230.9 million and $126.8 million, respectively, on the carrying value of our investments. We may continue to incur impairment charges in the future, which could depress our profitability or subject us to incur a net loss.

As of December 31, 2020, our investments included $890.2 million in private companies, which may not have the resources nor level of controls in place like public companies to timely and accurately provide updates about their company to us. Furthermore, many of our investments are at an early, pre-revenue stage of development, and their impairment may be difficult to assess as market information on internet-related startups is not readily available. After our adoption of ASU 2016-01 “Classification and Measurement of Financial Instruments” starting January 1, 2018, we measure long-term investments other than equity method investments at fair value through earnings. Our investments other than equity method are subject to a wide variety of market related risks that could substantially reduce or increase the fair value of our holdings. For example, identification of observable price change in orderly transaction for those investments without readily determinable fair value may result in our recognition of gain or loss on such investments.

Determination of estimated fair value of these investments require complex and subjective judgments due to their limited financial and operating history, unique business risks and limited public information. Consequently, we may not receive information about our investments on a timely basis to properly account for them. We recognized a net gain of $35.1 million in 2020 as a result of fair value changes. We are unable to control these factors and an impairment charge recognized by us, especially untimely recorded, may adversely impact our financial results and share price.

If we cannot obtain sufficient cash when we need it, we may not be able to meet our payment obligations under our notes.

In October 2017, we issued $900 million principal amount of convertible senior notes due 2022, which we refer to as 2022 Notes in this annual report. The 2022 Notes bear an annual interest rate of 1.25%, payable semiannually in arrears on May 15 and November 15 of each year, beginning on May 15, 2018, and will mature on November 15, 2022. In July 2019, we issued US$800 million in aggregate principal amount of senior notes due 2024, which we refer to as 2024 Notes in this annual report. The 2024 Notes were issued at par value and bear an annual interest rate of 3.50%, payable semiannually in arrears on January 5 and July 5 of each year, beginning on January 5, 2020. The 2024 Notes will mature on July 5, 2024, unless previously repurchased or redeemed in accordance with their terms prior to maturity. In July 2020, we issued $750 million in aggregate principal amount of senior notes due 2030, which we refer to as 2030 Notes in this annual report. The 2030 Notes bear an annual interest rate of 3.375%, payable semiannually in arrears on January 8 and July 8 of each year, beginning on January 8, 2021. The 2030 Notes will mature on July 8, 2030, unless previously repurchased or redeemed in accordance with their terms prior to maturity. We may not have sufficient funds to pay the interest or fulfill other obligations under these notes.

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We derive most of our revenues from, and hold most of our assets through, our subsidiaries. As a result, we may rely in part upon distributions and advances from our subsidiaries in order to help us meet our payment obligations under the notes and our other obligations. Our subsidiaries are distinct legal entities and do not have any obligation, legal or otherwise, to provide us with distributions or advances. We may face tax or other adverse consequences, or legal limitations, on our ability to obtain funds from these entities. In addition, our ability to obtain external financing in the future is subject to a variety of uncertainties, including:

If we are unable to obtain funding in a timely manner or on commercially acceptable terms, we may not be able to meet our payment obligations under our convertible notes. If we fail to pay interest on the notes, we will be in default under the indenture governing the notes, which in turn may constitute a default under existing and future agreements governing our indebtedness.

We may need additional capital, and financing may not be available on terms acceptable to us, or at all.

We may require additional cash resources if we experience changes in business conditions or other developments. In addition to the 2022 Notes, 2024 Notes and 2030 Notes, we may seek to issue equity or equity linked securities or obtain debt financing. The issuance and sale of additional equity would result in further dilution to our shareholders. The incurrence of indebtedness would result in increased fixed obligations and could result in operating covenants that would restrict our operations. We cannot assure you that financing will be available in amounts or on terms acceptable to us, if at all.

Many of our products and services contain open source software, and we license some of our software through open source projects, which may pose particular risks to our proprietary software, products, and services in a manner that could have a negative effect on our business.

We use open source software in our products and services and will use open source software in the future. In addition, from time to time, we contribute software source code to open source projects under open source licenses or release internal software projects under open source licenses, and anticipate doing so in the future. The terms of many open source licenses to which we are subject have not been interpreted by domestic or foreign courts, and there is a risk that open source software licenses could be construed in a manner that imposes unanticipated conditions or restrictions on our ability to provide or distribute our products or services. Additionally, we may from time to time face claims from third parties claiming ownership of, or demanding release of, the open source software or derivative works that we developed using such software, which could include our proprietary source code, or otherwise seeking to enforce the terms of the applicable open source license. These claims could result in litigation and could require us to make our software source code freely available, purchase a costly license or cease offering the implicated products or services unless and until we can re-engineer them to avoid infringement. This re-engineering process could require significant additional research and development resources, and we may not be able to complete it successfully. In addition to risks related to license requirements, use of certain open source software can lead to greater risks than use of third-party commercial software, as open source licensors generally do not provide warranties or controls on the origin of software. Additionally, because any software source code we contribute to open source projects is publicly available, our ability to protect our intellectual property rights with respect to such software source code may be limited or lost entirely, and we are unable to prevent our competitors or others from using such contributed software source code. Any of these risks could be difficult to eliminate or manage, and, if not addressed, could have a negative effect on our business, financial condition and operating results.

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We may not be able to adequately protect our intellectual property, which could cause us to be less competitive.

We rely on a combination of patent, copyright, trademark and trade secret laws and restrictions on disclosure to protect our intellectual property rights. Despite our efforts to protect our proprietary rights, third parties may attempt to copy or otherwise obtain and use our intellectual property, seek court declarations that they do not infringe upon our intellectual property rights, or allege that certain of our products and services, or user content, infringe their intellectual property rights. Monitoring unauthorized use of our intellectual property is difficult and costly, and we cannot be certain that the steps we have taken will prevent misappropriation of our intellectual property. From time to time, we may have to resort to litigation to enforce or defend our intellectual property rights, which could result in substantial costs and diversion of our resources. For example, the Trademark Review and Adjudication Board, or TRAB, issued decisions in June and July, 2017 to cancel the two trademarks owned by Weibo Interactive due to the lack of the proof of use. We have appealed TRAB’s decisions through the Beijing Intellectual Property Court. On December 25, 2017, Beijing Intellectual Property Court made two first instance judgments, each lifting TRAB’s decision and instructing TRAB to issue new decisions on the application for review regarding the two trademarks. On May 8, 2018, TRAB issued that the trademarks are valid for all registered items including computer programs and computer game software.

We may be subject to intellectual property infringement claims or other allegations by third parties for information or content displayed on, retrieved from or linked to our platform, or distributed to our users, which may materially and adversely affect our business, financial condition and prospects.

Companies in the internet, technology and media industries are frequently involved in litigation based on allegations of infringement of intellectual property rights, unfair competition, invasion of privacy, defamation, and other violations of other parties’ rights. In addition, various "non-practicing entities" that own patents and other intellectual property rights often attempt to aggressively assert their rights in order to extract value from technology companies. The validity, enforceability and scope of protection of intellectual property rights in internet-related industries, particularly in China, are uncertain and still evolving. As we face increasing competition and as litigation becomes more common in China in resolving commercial disputes, we face a higher risk of being the subject of intellectual property infringement claims. Furthermore, from time to time we may introduce or acquire new products or services, including in areas where we historically have not competed, which could increase our exposure to patent and other intellectual property claims from competitors and non-practicing entities.

We allow users to upload written materials, images, pictures and other content on our platform and download, share, link to and otherwise access games and applications (some of which are developed by third parties) as well as audio, video and other content either on our platform or from other websites through our platform. We have procedures designed to reduce the likelihood that content might be used without proper licenses or third-party consents. However, these procedures may not be effective in preventing the unauthorized posting of copyrighted content.

With respect to games and applications available on our platform, we have procedures designed to reduce the likelihood of infringement. However, such procedures might not be effective in preventing games and applications, particularly those developed by third parties, from infringing upon other parties’ rights. We may face liability for copyright or trademark infringement, defamation, unfair competition, libel, negligence, and other claims based on the nature and content of the materials that are delivered, shared or otherwise accessed through our platform.

We may receive notice from patent holders and other parties alleging that certain of our products and services, or user content, infringe their intellectual property rights. Defending intellectual property litigation is costly and can impose a significant burden on our management and employees, and there can be no assurances that favorable final outcomes will be obtained in all cases. Such claims, even if they do not result in liability, may harm our reputation. Any resulting liability or expenses, or changes required to our platform to reduce the risk of future liability, may have a material adverse effect on our business, financial condition and prospects.