Sohu.com Limited (SOHU) 20-F2020 FY Annual report (foreign)

We regard our copyrights, trademarks, trade secrets and other intellectual property as critical to our success. Unauthorized use of our intellectual property by third parties may adversely affect our business and reputation. For example, a third-party Internet platform operator might provide its users access to video content on our Internet platforms while blocking Internet advertisements embedded in our video content, which could adversely affect our advertising revenues and our reputation with our current and potential advertising clients. We rely on trademark and copyright law, trade secret protection and confidentiality agreements with our employees, customers, business partners and others to protect our intellectual property rights. Despite our precautions, it may be possible for third parties to obtain and use our intellectual property without authorization. For example, some of our self-developed Web series video productions were disseminated by third parties without our authorization. Furthermore, under the, the State Council’s Patent Administration Department may grant a compulsory license to individuals or entities to use one or more of our patents if our exploitation of the patents has been determined to violate the antitrust laws. Furthermore, the validity, enforceability and scope of protection of intellectual property in Internet-related industries are uncertain and still evolving. In particular, the laws of the PRC and certain other countries are uncertain or do not protect intellectual property rights to the same extent as do the laws of the United States. Moreover, litigation may be necessary in the future to enforce our intellectual property rights, to protect our trade secrets or to determine the validity and scope of the proprietary rights of others. Future litigation could result in substantial costs and diversion of resources. We cannot be certain that judgments from the lawsuits will be issued in our favor, or that any resulting damages will cover our business losses and litigation expenses. If our campaigns and lawsuits against piracy do not achieve their intended effect, our business and operation may be adversely affected.

We cannot be certain that the products, services and intellectual property used in our normal course of business do not or will not infringe valid patents, copyrights or other intellectual property rights held by third parties. We have in the past been, and may in the future be, subject to claims and legal proceedings relating to the intellectual property of others in the ordinary course of our business and have in the past been, and may in the future be, required to pay damages or to agree to restrict our activities. In particular, if we are found to have violated the intellectual property rights of others, we may be enjoined from using such intellectual property, may be ordered to pay damages or fines, and may incur licensing fees or be forced to develop alternatives. We may incur substantial expense in defending against third party infringement claims, regardless of their merit. Successful infringement claims against us may result in substantial monetary liability or may materially disrupt the conduct of our business by restricting or prohibiting our use of the intellectual property in question. In March 2008, we were sued by four major record companies, Sony BMG, Warner, Universal and Gold Label, which alleged that we had provided music search links and download services that violated copyrights they owned. Although the lawsuits were settled in 2013 without any payment of damages by us, we may be subject to similar lawsuits in the future. In addition, it is possible that content on our Internet platforms, which not only includes content developed by us but also provides a platform for a significant amount of content generated by others, may violate the intellectual property rights of third parties. As we produce more self-developed content for our Internet platforms as part of our new content strategy, we, as the primary provider of such content, may incur relatively higher monetary liability if such content is found to have infringed the intellectual property rights of third parties. Also, as we increasingly rely on content provided by third-party UGC and PGC providers on our Internet platforms, either developed by the outlets themselves or adapted from content of parties separate from such outlets, it will become increasingly difficult for us to fully monitor such content, which could make us more vulnerable to potential infringement claims. Furthermore, PRC governmental authorities have recently been drawing attention to issues regarding the infringement of online intellectual property rights. For example, a governmental program, called the “Jian Wang Campaign,” aimed at cracking down on network copyright infringement, has been in effect for several years. The Jian Wang Campaign for 2020, which targets copyright infringement related to the online transmission of games, music, and other copyrighted audio-visual works on or throughonline education, knowledge sharing, and other social platforms, and aims to strengthen the protection of online literature, application software, and other copyrighted content, was launched on June 12, 2020.

We collect, process, and store on our servers significant amounts of data concerning our users. Although we have taken steps to protect our user data, our security measures could be compromised, because techniques used to sabotage or obtain unauthorized access to systems change frequently and generally are not recognized until they are launched against a target, and we may be unable to anticipate these techniques or to implement adequate preventative measures. In addition, we are subject to various regulatory requirements relating to the security and privacy of such data, including restrictions on the collection and use of personal information of users and steps we must take to prevent personal data from being divulged, stolen, or tampered with. Regulatory requirements regarding the protection of such data are constantly evolving and can be subject to significant change, making the extent of our responsibility in that regard uncertain. For example, the Internet Security Law became effective in June 2017, but the circumstances and standards for application of the law and what might be found to constitute a violation are unclear.See “Government Regulation and Legal Uncertainties—Miscellaneous -Laws and Regulations Related to Security and Censorship.” It is possible that our data protection practices are at present or will in the future be inconsistent with regulatory requirements.

It has been, and can be expected to continue to be, necessary for us to invest significant financial, operational, strategic, technological, personnel, and other resources for our online video services. Although we have attempted to control our expenditures for online video services, in part by using relatively more self-developed video content, which we produce in house or contract with independentstudios to produce for us, and relatively less content acquired from third parties, our total operating costs in this regard are still large, and continue to exceed the amount of our revenues derived from advertising on our online video platforms. Further, we compete with popular vertical online video sites, such as those operated by iQiyi, Tencent, Alibaba’s online video subsidiary Youku, and Mango TV, that have substantially greater financial resources than we do. These expenditures have had, and are likely to continue to have, an adverse impact on our operating results and have significantly strained, and can be expected to continue to strain, our resources. If we are unable to continue to expend the resources necessary to self-develop or acquire the rights to, and provide on our video platforms, quality video content, we may not be able to compete effectively against these other popular sites, or grow or maintain the level of our user traffic, which could make our video platforms less attractive to advertisers, have a negative impact on our ability to generate advertising revenues, and make it difficult for us to stem our losses from operation of our online video services or to recoup our substantial expenditures. In addition, when we obtain rights to video content from third parties we are often required to pay license fees upfront, prior to production of the content. There often are delays of several months, or sometimes up to two or three years, between our payment of suchfees and the time when we are able to offer fully-developed content online and begin to receive advertising dollars. These delays have often placed, and can be expected to continue to place, significant strains on our cash flow. Ourpayments also subject us to a certain level of credit risk, as content producers to which we make such payments may fall into financial difficulties and be unable to deliver the content we have purchased.

With the goal of reducing our overall costs for our online video business, we have been making a strategic shift to reduce our purchase of licensed video content and focus more on self-developed video content, which generally requires relatively lower expenditures by us than those required for obtaining license rights from third parties. Accordingly, we have spent, and expect to continue to spend, significant resources on self-developed video content. We have also invested, and expect to invest in the future, in the production of movies and other content by selected independent third-party studios. However, we are subject to the risk that the quality of our self-developed video content, or movies or other content in which we invest, will not be up to our expectations or those of our target viewer audience. If our self-developed video content, or such movies and other content produced for us by third parties, are not well received by viewers and/or fail to attract sufficient advertising placements from advertisers, or if the development of any such content or movies is not completed as a result of financial, regulatory, or other restraints, we may not be able to recoup our production costs and other expenditures. In addition, if developingcontent becomes more widespread in the online video business in China, we could face significant competition from other online video sites with respect to the acquisition of quality and popular intellectual property, such as story lines, plots, and characters, for use in such content, and the cost of obtaining such intellectual property would therefore be likely to increase.

We have limited backup systems and have experienced system failures and electrical outages from time to time in the past, which have disrupted our operations. Our disaster recovery plan cannot fully ensure safety in the event of damage from fire, floods, typhoons, earthquakes, power loss, telecommunications failures,and similar events. If any of the foregoing occurs, we may experience a complete system shutdown. We do not carry any business interruption insurance. To improve the performance and to prevent disruption of our services, we may have to make substantial investments to deploy additional servers or one or more copies of our Internet platforms to mirror our online resources.

The PRC legal system is a civil law system based on written statutes. Unlike common law systems, it is a system in which decided legal cases have little precedential value. In 1979, the PRC government began to promulgate a comprehensive system of laws and regulations governing economic matters in general. Our PRC operating subsidiaries Beijing Sohu New Momentum Information Technology Co., Ltd. (“Sohu New Momentum”), Beijing Sohu New Era Information Technology Co., Ltd., (“Sohu Era”), Beijing Sohu New Media Information Technology Co., Ltd. (“Sohu Media”), Fox Information Technology (Tianjin) Limited (“Video Tianjin”), Beijing AmazGame Age Internet Technology Co., Ltd. (“AmazGame”), Beijing Changyou Gamespace Software Technology Co., Ltd. (“Gamespace”), Beijing Sogou Technology Development Co., Ltd. (“Sogou Technology”), and Beijing Sogou Network Technology Co., Ltd. (“Sogou Network”) are WFOEs, which are enterprises incorporated in China and wholly-owned by our indirectsubsidiaries. Those WFOEs are subject to laws and regulations applicable to foreign investment in China. In addition, all of our subsidiaries and VIEs are incorporated in China and subject to all applicable Chinese laws and regulations. Because of the relatively short period for enacting such a comprehensive legal system, it is possible that the laws, regulations and legal requirements are relatively recent, and their interpretation and enforcement involve uncertainties. These uncertainties could limit the legal protections available to us and other foreign investors, including you. Such uncertainties may also make it easier for others to infringe our intellectual property without significant cost, and new entrants to the market may tend to use gray areas to compete with us. In addition, uncertainties in the PRC legal system may lead to penalties imposed on us because of a difference in interpretation of the applicable law between the relevant governmental authority and us. For example, under current tax laws and regulations, in order to be entitled to the preferential tax treatment afforded to “Software Enterprises” or KNSEs we are responsible for conducting a self-assessment and filing required supporting documentation with tax authorities. However, since there is no clear guidance as to the applicability of certain areas of preferential tax treatment, we may be found to be in violation of the tax laws and regulations based on the interpretation of local tax authorities with regard to the applicable tax rates, and therefore might be subject to penalties, including monetary penalties. In addition, we cannot predict the effect of future developments in the PRC legal system, particularly with regard to the Internet, including the promulgation of new laws, changes to existing laws or the interpretation or enforcement thereof, or the preemption of local regulations by national laws.

In 2007, the Standing Committee of the National People’s Congress enacted the, which was amended on December 28, 2012. The Labor Contract Law introduced specific provisions related to fixed-term employment contracts, part-time employment, probationary periods, consultation with labor unions and employee assemblies, employment without a written contract, dismissal of employees, severance, and collective bargaining to enhance previous PRC labor laws. Under the Labor Contract Law, an employer is obligated to sign an unlimited-term labor contract with any employee who has worked for the employer for ten consecutive years. Further, if an employee requests or agrees to renew a fixed-term labor contract that has already been entered into twice consecutively, the resulting contract, with certain exceptions, mustan unlimited term. With certain exceptions, an employer must pay severance to an employee where a labor contract is terminated or expires. In addition, PRC governmental authorities have continued to introduce various new labor-related regulations since the effectiveness of the Labor Contract Law. For example, there are regulations which require that annual leave ranging from five to 15 days be made available to employees and that employees be compensated for any unused annual leave days at a rate of three times their daily salary, subject to certain exceptions.

PRC laws and regulations, such as the M&A Rules, which were jointly issued by six PRC regulatory agencies on August 8, 2006 and were amended on June 22, 2009, the Anti-Monopoly Law, Circular 6 and the MOFCOM Security Review Rules, established additional procedures and requirements that are expected to make merger and acquisition activities in China by foreign investors more time-consuming and complex, including requirements in some instances that the MOFCOM be notified in advance of anytransaction in which a foreign investor takes control of a PRC domestic enterprise, or that the approval from the MOFCOM be obtained in circumstances where overseas companies established or controlled by PRC enterprises or residents acquire affiliated domestic companies. The Platform Guidelines stipulate that any business combinations or acquisitions of control (“Concentrations of Undertakings”) involving VIE structures fall within the scope of anti-monopoly review. If a Concentration of Undertakings meets the criteria for declaration as stipulated by the State Council, an operator shall report such Concentration of Undertakings to the anti-monopoly law enforcement agency under the State Council in advance. PRC laws and regulations also require certain merger and acquisition transactions to be subject to a merger control security review. The MOFCOM Security Review Rules, effective from September 1, 2011, further provide that, when deciding whether a specific merger or acquisition of a domestic enterprise by foreign investors is subject to a security review by the MOFCOM, the principle of substance over form should be applied and foreign investors are prohibited from bypassing the security review requirement by structuring transactions through proxies, trusts, indirect investments, leases, loans, control through contractual arrangements of Offshore transaction. Factors that the MOFCOM considers in its review are whether (i) an important industry is involved, (ii) such transaction involves factors that have had or may have an impact on national economic security and (iii) such transaction will lead to a change in control of a domestic enterprise that holds a well-known PRC trademark or a time-honored PRC brand. The(the “Security Review Measures”), promulgated by the MOFCOM and the NDRC, which became effective on January 18, 2021, further stipulate that any foreign investment that affects or may affect national security will be subject to a security review by relevant governmental authorities. If a business of any target company that we plan to acquire falls into the ambit of security review, we may not be able to successfully acquire such company. Complying with the requirements of the relevant regulation to complete any such transaction could be time-consuming, and any required approval process, including approval from the MOFCOM, may delay or inhibit our ability to complete such transactions, which could affect our ability to expand our business.

Sohu.com Limited is a holding company with no operating assets other than investments in Chinese operating entities through our intermediate Offshore holding companies. Our Offshore entities may need to rely on dividends and other distributions on equity paid by Mainland China-based subsidiaries for the cash requirements in excess of any cash raised from investors and retained by Sohu.com Limited or our other Offshore entities. In addition, for subsidiaries engaging in Sohu’s business in Mainland China to be able to use the proceeds of cash dividends from Changyou or Sogou, the dividends would have to be paid through the Sohu Cayman Islands entities Sohu Game and Sohu Search that hold Sohu’s shares in Changyou and Sogou. The primary source of any dividend payments to our Offshore entities would need to be our subsidiaries in Mainland China after they receive payments from our VIEs under various service agreements and other arrangements. It is possible that our Mainland China-based subsidiaries will not continue to receive payments in accordance with our contracts with our VIEs or that such payments will become subject to restrictions imposed by PRC law. If our subsidiaries and VIEs incur debt on their own behalf in the future, the instruments governing the debt may restrict their ability to pay dividends or make other distributions to us through the intermediate companies. In addition, amounts available for dividends are further reduced because transfers of funds out of Mainland China generally are subject to a withholding tax of 10%, and of 5% if transfers are made to Hong Kong and subject to theTax Arrangement.

The Chinese government has stringent prohibitions on online pornographic information and has launched several crackdowns on Internet pornography recently. On December 4, 2009, the MIIT and other three PRC government authorities jointly issued the(the “Anti-Pornography Notice”) to further crackdown on online pornography. Pursuant to this Anti-Pornography Notice, rewards of up to RMB10,000 will be provided to Internet users who report Websites that feature pornography, and a committee has been established to review such reports to determine an appropriate award. On April 13, 2014, the National Working Group on Anti-Pornography and three other PRC government authorities jointly issued the Anti-Pornography Proclamation, under which Internet service providers must immediately remove texts, images, video, advertisements and other information that contain pornographic content. The relevant government authority may order enterprises or individuals who flagrantly produce or disseminate pornographic content to stop conducting business, and may revoke relevant administrative permits. Although we require all users upon account registration to agree to our terms of service, which specify the types of content that are prohibited on our platform, and we have deleted from our relevant channels and communities all Web pages with material that we believe could reasonably be considered to be vulgar and have strengthened our internal censorship and supervision of links and content uploaded by users, it is possible that our users may engage in obscene conversations or activities on our platform that may be deemed illegal under PRC laws and regulations. For example, we provide an online interactive broadcasting video platform for users, and because the video and audio communication on this platform is conducted in real time, we are unable to examine the content generated by our hosts and users on air before the content is streamed on the platform. There is no assurance that content considered vulgar by PRC government agencies will not appear in the future. We may be subject to fines or other disciplinary actions, including in serious cases suspension or revocation of the licenses necessary to operate our platform, if we are deemed to have facilitated the appearance of inappropriate content placed by third parties on our platform under PRC laws and regulations. In addition, if we are accused by the government of hosting vulgar content, our reputation could be adversely affected.

On September 2, 2014, the SAPPRFT issued a(the “September 2014 SAPPRFT Notice”), which requires that operators of audiovisual Websites obtain from the SAPPRFT a Film Public Screening Permit, TV Drama Distribution Permit, or TV Animation Distribution Permit for all foreign films and TV dramas before they are transmitted via the Internet in China. The September 2014 SAPPRFT Notice further stipulates that before any foreign films or TV dramas for transmission exclusively via the Internet are purchased after the promulgation of the September 2014 SAPPRFT Notice, operators of audiovisual Websites must declare their annual purchasing plans with the SAPPRFT before the end of the year preceding the year of the intended broadcast and obtain the SAPPRFT’s approval. The September 2014 SAPPRFT Notice also states that the number of foreign films and TV dramas to be purchased by an operator and transmitted via its Website in a single year may not exceed 30% of the total amount of the Chinese films and TV dramas purchased and transmitted by the same Website in the previous year.

As online interactive broadcasting has surged in popularity in China, PRC governmental authorities have increased their efforts to regulate it. The Ministry of Culture and Tourism of the People’s Republic of China (the “MCT”) issued an, which became effective on July 1, 2016, and issued thewhich became effective on January 1, 2017; the CAOC issuedon November 4, 2016; and the MIIT and several other PRC governmental authorities issued aon August 1, 2018, providing for the administration and censorship of online interactive broadcasting. The Live Social Video Provisions require us to implement procedures to detect and block illegal, fraudulent, politically-sensitive and inappropriate content and activities conducted through our online interactive broadcasting platform. Although we have implemented procedures for our online interactive broadcasting platform designed to detect and prevent material and activity that we believe could reasonably be considered to be prohibited, it is possible that hosts and users of our platform may distribute content and engage in activities that may be deemed illegal, but that we do not detect and identify as such. Furthermore, we may not be able to immediately block all such content uploads or activities generated by our hosts and users, because there is often a lag between the time our hosts and users upload and stream content on our platform and the time we are able to examine such content. If PRC authorities believe that illegal or inappropriate activities haven been conducted through our online interactive broadcasting platform, or if there is negative media coverage concerning our platform, PRC government authorities may hold us liable forand subject us to administrative penalties or other sanctions, which could cause our business to suffer or have an adverse effect on our user base. See “Government Regulation and Legal Uncertainties—Specific Statutes and Regulations—Regulation of the Provision of Internet Content—Online Cultural Products.”

Starting in 2011, we and the PRC affiliates of the “big four” accounting firms, including our independent registered public accounting firm, have been affected by a conflict between U.S. and PRC law. Specifically, for certain U.S.-listed companies operating and audited in mainland China, the SEC and the U.S. Public Company Accounting Oversight Board (the “PCAOB”) sought to obtain from the PRC big four affiliate firms access to their audit work papers and related documents. However, the firms were advised and directed that under PRC law they could not respond directly to the U.S. regulators on those requests, and that requests by foreign regulators for access to such papers in China had to be channeled through the CSRC. On December 18, 2020, the U.S. President signed the Holding Foreign Companies Accountable Act, which, among other things, directs the SEC to prohibit trading on U.S. stock exchanges and in the U.S.markets the securities of foreign-based companies if their financial statements are audited by accounting firms that the PCAOB determines it has been unable to inspect or investigate completely for a period of three consecutive audit years, because of a position taken by the authorities in a foreign jurisdiction in which the accounting firms are based. Also on December 18, 2020 the Chair of the SEC, in response to the enactment of the Holding Foreign Companies Accountable Act, reported in a published statement that he had directed the staff of the SEC to consider providing a single consolidated proposal for the SEC’s consideration on issues related to the PCAOB’s access to audit work papers, exchange listing standards, and trading prohibitions. If the PCAOB determines that it has been unable to inspect or investigate completely our independent registered public accounting firm for a period of three consecutive audit years, the Holding Foreign Companies Accounting Act, together with any rules promulgated by the SEC pursuant to the statute, could require that our ADSs and Ordinary Shares be delisted from NASDAQ and not traded in themarket, which would substantially reduce or effectively terminate the trading of our ADSs in the United States. In addition, the provisions of the Holding Foreign Companies Accounting Act could cause investors and potential investors in our ADSs to lose confidence in our audit procedures and reported financial information and the quality of our financial statements.

In order to fund our acquisition of theinterests in our subsidiary Changyou, we entered into loan arrangements with Industrial and Commercial Bank of China Limited (“ICBC”) and Industrial and Commercial Bank of China Limited, Tokyo Branch (“ICBC Tokyo”), secured by pledges of deposit certificates evidencing the RMB equivalent to the principal amount of the loan outstanding at an exchange rate of RMB7.20 to $1.00.

Changyou’s future success depends substantially on the services of the members of its management and its key development and technical personnel, such as Changyou’s Chief Executive Officer Dewen Chen and its key game development personnel. If one or more of the members of Changyou’s management or key development or technical personnel were unable or unwilling to continue in their present positions, Changyou might not be able to replace them easily, or at all. If any of the members of Changyou’s management or its key employees joins a competitor or forms a competing company, not only would Changyou losekey professionals, staff members and suppliers, but such members of Changyou’s management and key employees could develop and operate games and other services that could compete with and take game players and users away from its existing and future business. Although each of these members of Changyou’s management and key personnel has entered into an employment agreement withprovisions, theseprovisions may not be enforceable in China.

The Internet industry in China is characterized by high demand and intense competition for talent, particularly for game developers and related technical personnel, and Changyou’s success in the implementation of its growth strategies depends on Changyou’s ability to successfully manage, and make timely adjustments to, its hiring needs. The number of Changyou’s employees decreased by 13% in 2017, by 14% in 2018, and by 15% in 2019, as Changyou emphasized the development of mobile games and laid off a number of employees who had been focused primarily on international markets and the platform channel business. Although the number of Changyou’s employees stayed stable in 2020, there may be further layoffs. Any such layoffs could have an adverse effect on Changyou’s remaining employees’ morale and their loyalty to Changyou, and cause Changyou to lose employees whose talent and experience are important for its business, and could also have a negative impact on its reputation as an employer and its ability to attract qualified employees in the future.employees could also make claims against Changyou for additional compensation, causing Changyou to incur additional expense.

Changyou’s success depends largely on its ability to use and develop its technology andwithout infringing the intellectual property rights of third parties. We cannot assure you that third parties will not assert intellectual property claims against Changyou. Changyou is subject to additional risks if entities licensing to it intellectual property, including, for example, game source codes, do not have adequate rights in any such licensed materials. The validity and scope of claims relating to the intellectual property of game development and technology involve complex scientific, legal and factual questions and analyses and, therefore, tend to be uncertain. If third parties assert copyright or patent infringement or violation of other intellectual property rights against it, Changyou will have to defend itself in litigation or administrative proceedings, which can be both costly and time consuming and may significantly divert the efforts and resources of Changyou’s technical and management personnel. An adverse determination or settlement in any such litigation or proceedings to which Changyou may become a party could subject it to significant liability to third parties, or require it to seek licenses from third parties, pay ongoing royalties, or redesign its games or subject it to injunctions prohibiting the development and operation of its games.

Changyou’s mobile game Legacy TLBB Mobile has been generating a significant portion of Changyou’s revenues since Legacy TLBB Mobile’s launch in May 2017. Changyou increasingly relies on dominant third-party game distributors and operators with large user bases, leading big data analytical capabilities, and track records and experience with successful operation of mobile games to operate its mobile games. For example, Tencent, which is an Internet conglomerate with a very large user base and is a dominant game developer and distributor in China, is the exclusive operator and distributor of Legacy TLBB Mobile under license from Changyou, and shares with Changyou the revenues generated by the game. For the year ended December 31, 2019, revenues from Legacy TLBB Mobile were $101.1 million, accounting for approximately 23% of Changyou’s online game revenues and approximately 22% of its total revenues. For the year ended December 31, 2020, revenues from Legacy TLBB Mobile were $88.3 million, accounting for approximately 16% of Changyou’s online game revenues and approximately 16% of its total revenues. If Tencent terminates the current licensing arrangements with Changyou for Legacy TLBB Mobile or curtails Tencent’s marketing efforts to promote Legacy TLBB Mobile, or if Changyou is not able to establish and maintain collaborative relationships with other dominant game distributors and operators in China for its existing and future mobile games on commercial terms that are acceptable to Changyou, it will be difficult for Changyou to maintain or expand its mobile game business. In addition, Changyou relies on Tencent and other third-party operators to collect payments from game players for their purchases of virtual items in Changyou’s mobile games, and to pay to Changyou therevenue-sharing amounts, and there is usually a delay between the time of a game player’s purchase and the time when the operator pays Changyou, which has placed, and may continue to place, constraints on Changyou’s cash flow.

With Changyou’s increasingly diversified game portfolio, we cannot assure you that players of Changyou’s existing games will not be attracted to play other newly launched games, including its new mobile games. If this occurs, it will decrease Changyou’s existing games’ player bases, which could in turn make these games less attractive to other game players, resulting in decreased revenues from its existing games. For example, revenues generated from Changyou’s mobile game TLBB 3D decreased significantly in the second quarter of 2017, and we believe that this may have been due in part to the launch of Changyou’s mobile game Legacy TLBB Mobile in May 2017. Game players who switch from playing Changyou’s existing games to its new games may also spend less money to purchase virtual items in its new games than they would have spent if they had continued playing Changyou’s existing games, resulting in an adverse effect on its overall revenues. In addition, game players’ switching from playing Changyou’s existing PC games to its new mobile games, as well as from itsdeveloped games to its licensed games, could cause Changyou’s overall online game profits to be relatively lower, as its profits from mobile games and licensed games tend to be relatively lower as a result of revenue-sharing arrangements.

Changyou’s revenue-sharing arrangements for games that Changyou licenses from or jointly develops with third-party developers provide Changyou with relatively less profit than games that Changyou developsand in some cases Changyou may not be able to recoup its investments in such games. Moreover, to secure the rights to games from third-party developers, Changyou often must payfees and also commit to pay additional fees in the future. Changyou also has invested in mobile game development studios in order to assure access to an extensive pipeline of mobile games. Changyou often must make such commitments and investments without knowing whether the games Changyou is licensing or jointly developing will be successful and generate sufficient revenues to enable Changyou to recoup its costs or for the games to be profitable.

All of Changyou’s games, including PC games and mobile games, are operated under the item-based revenue model. Under this revenue model, Changyou’s game players are able to play the games for free, but are charged for the purchase of virtual items in the games. The item-based revenue model requires Changyou to design games that not only attract game players to spend more time playing, but also encourage them to purchase virtual items. The sale of virtual items requires Changyou to track closely consumer tastes and preferences, especially as toconsumption patterns. If Changyou fails to design and price virtual items so as to incentivize game players to purchase them, Changyou may not be able to effectively translate its game player base and their playing time into revenues. In addition, the item-based revenue model may cause additional concerns with PRC regulators who have been implementing regulations designed to reduce the amount of time that Chinese youths spend on online games and intended to limit the total amount of virtual currency issued by online game operators and the amount purchased by individual game players. A revenue model that does not charge for time played may be viewed by the PRC regulators as inconsistent with these goals. The item-based revenue model may not continue to be commercially successful and in the future Changyou may need to change its revenue model to a time-based or other revenue model. Any change in revenue model could result in disruption of Changyou’s game operations, a decrease in the number of its game players and a decline in its revenues.

The SAPPRFT has issued a series of regulations affecting the online game industry and providing guidance regarding online game operations. The SAPPRFT issued a notice in September 2009 stating that the SAPPRFT would be the only governmental agency with the authority to review and approve online games, including reviewing and approving the importation of online games from offshore copyright owners, and that all online game operators must obtain an Internet publishing license in order to operate online games and related services and obtain additionalfrom the SAPPRFT to make any changes to, or any new versions or expansion packs of, the originally approved online games. Theissued by the SAPPRFT and the MIIT, or the New Internet Publication Measures, which became effective on March 10, 2016 and replaced thethat had become effective in 2002, require that entities in the Internet publishing business apply for an online publishing service license, instead of an Internet publishing license, that entities holding an Internet publishing license apply for an online publishing service license within a specified period of time to replace their Internet publishing license, and that all such entities obtain approval from the SAPPRFT prior to the publication of new online games. On May 24, 2016, the SAPPRFT issued a, or the Mobile Game Notice, which became effective on July 1, 2016. The Mobile Game Notice provides that the content of mobile games is subject to review, and that mobile game publishers and operators must apply for publishing and authorization codes for the games. Under the Mobile Game Notice, significant upgrades and expansion packs for mobile games that have previously been approved for publishing may be regarded as new works, and the operators will be required to obtain approval for such upgrades and expansion packs before they are released. In the event of any failure to meet these license and approval requirements, an operator may face heavy penalties, such as being ordered to stop operation, or having its business license revoked. In addition, the State Press Publication Administration (the “SPPA”), a successor agency to SAPPRFT, first delayed, and then suspended, its review of, and issuance of publishing and authorization codes for, online games, as was the case between April 2018 and December 2018, and has continued to delay such review and issuance during 2019. Changyou’s online game business may be adversely affected by these SAPPRFT and MIIT notices and related implementation measures, as the launch of online games, new versions, expansion packs and imported games might be delayed because of the approval required. Such delays may result in higher costs for Changyou’s online game operation and have an adverse effect on its game revenue. If any of Changyou’s online game operating entities are unable to comply with the requirements of any PRC governmental department regarding the online game industry, it may be subject to various penalties and its online game business may be adversely affected.

Changyou’s online game revenues are collected through the online sale of game points and sale of its prepaid cards, which are considered to be the “virtual currency” as such term is defined in the, or the Virtual Currency Notice, which was jointly issued by the MCT and the MOFCOM in 2009. PRC laws and regulations, including the Virtual Currency Notice, have provided various restrictions on virtual currency and imposed various requirements and obligations on online game operators with respect to the virtual currency used in their games, including that (i) the total amount of virtual currency issued by online game operators and the amount purchased by individual users in the PRC is subject to limits, and online game operators are required to report the total amount of their issued virtual currency on a quarterly basis and are prohibited from issuing disproportionate amounts of virtual currency in order to generate revenues; (ii) virtual currency may only be provided to users in exchange for payment in RMB and may only be used to pay for virtual goods and services of the issuer of the currency, and online game operators are required to keep transaction data records for no less than 180 days; (iii) online game operators are prohibited from providing lucky draws or lotteries that are conducted on the condition that participants contribute cash or virtual currency in exchange for game props or virtual currencies; (iv) online game operators are prohibited from providing virtual currency trading services to minors; and (v) companies involved with virtual currency in the PRC must be either issuers or trading platforms, and may not operate simultaneously as issuers and as trading platforms. Changyou must tailor its business model carefully, including designing and operating its databases to maintain users’ information for the minimum required period, in order to comply with the requirements of current PRC laws and regulations, including the Virtual Currency Notice, in a manner that in many cases can be expected to result in relatively lower sales of its game coins and an adverse impact on its online game revenues. Although the MCT Approval Scope Notice provides that the MCT is no longer responsible for regulating the online game industry, as of the date of this annual report the Virtual Currency Notice have not been abolished, and their validity and future enforceability remain uncertain.

In the course of playing Changyou’s games, game players can acquire and accumulate virtual assets, such as game player experience, skills and weaponry. Such virtual assets can be highly valued by game players and in some cases are traded among game players for real money or assets. In practice, virtual assets can be lost for various reasons, such as data loss caused by delay of network service by a network crash, or by hacking activities. There are currently no specific PRC laws or regulations governing property rights with respect to virtual assets. On May 28, 2020, the National People’s Congress issued the(the “Civil Code”), which came into effect on January 1, 2021 and provides only a general principle that if any further law or regulation contains specific provisions in respect of the protection of virtual property, such provisions shall apply. As a result, it is unclear under PRC law and regulations as in effect as of the date of this annual report who the legal owner of virtual assets is and whether the ownership of virtual assets is protected by law. In addition, it is unclear under PRC law and regulations whether an operator of online games such as Changyou would have any liability (whether in contract, tort or otherwise) for loss of such virtual assets by game players. Based on several judgments regarding the liabilities of online game operators for loss of virtual assets by game players, the courts have generally required the online game operators to provide well-developed security systems to protect such virtual assets owned by game players. In the event of a loss of virtual assets, Changyou may be sued by game players and may be held liable for damages.

Sogou operates its business in an extremely competitive industry. Sogou faces intense competition in every aspect of its business, including competition for users, advertisers, technology, and talent. Sogou faces competition for its search and search-related services in China primarily from Baidu Inc. (“Baidu”), and ShenMa, operated by UCWeb Inc. (“UCWeb”), which is a subsidiary of Alibaba Group Holding Limited (“Alibaba”). Both Baidu and Alibaba have considerably greater financial and technical resources available to them than Sogou does. Sogou also faces competition for both users and advertisers from websites and mobile applications that provide specialized search services in China, including travel services and information platforms such as Ctrip and Qunar;platforms such as Meituan Dianping; online classified advertisement platforms such as 58.com; and short-video platforms such as Douyin and Kuaishou. Sogou competes for advertisers not only with Internet companies, but also with other types of advertising media such as newspapers and magazines, billboards and bus advertisements, television, and radio. It is also possible that multinational businesses with considerably greater financial and other resources than Sogou’s could expand their offerings in China, making it harder for Sogou to gain market share.

The Internet industry in general and the online search industry in particular have been undergoing rapid changes in technology and in user preferences. Sogou’s future success in expanding its user base will depend on its ability to respond to, as well as anticipate and apply, rapidly evolving technologies. Sogou must adapt its existing products and services and develop new products and product areas that will meet the evolving demands of users, deliver attractive experiences for its users that enhance user engagement, and cause its users to return to its services and increase the frequency of their searches on Sogou’s platforms. Sogou’s development and introduction of new products, features, and services are subject to additional risks and uncertainties. Unexpected technical, operational, distribution, or other problems could delay or prevent the development and introduction of one or more of Sogou’s currently planned and any future new products and services. There are constant innovations in the market regarding search services, search andadvertising, and providing information to users. If Sogou is unable to predict user preferences or industry changes, or if Sogou is unable to modify its products and services on a timely basis, Sogou may lose users. Sogou’s operating results will also suffer if its innovations are not responsive to the needs of its users, are not appropriately timed with market opportunity, or are not effectively brought to market. As search technology continues to develop, there may be offered in the China market products and services that are, or that are perceived to be, substantially similar to or better than those generated by Sogou’s search services. As worldwide focus on the development of AI technologies has intensified, it has become increasingly important to apply AI technologies to online search products and features in order to attract and retain users, and we cannot be sure that Sogou will be able to apply such technologies successfully.

Sogou has extensive collaboration with Tencent, one of its largest shareholders. Sogou Search is the default general search engine in various Tencent products that provide general search offerings, such as Mobile QQ Browser,, and the PC Web directoriesand. Approximately 39% of Sogou’s total search traffic, measured by page views, was contributed by Tencent’s Internet properties in December 2020. Sogou Weixin Search is currently the sole general search engine with access to all content published on Weixin Official Accounts, but it is possible that Tencent will grant such access to other general search engines. We cannot assure you that Sogou will be able to maintain the current level of cooperation with Tencent in the future. If Sogou’s collaborative relationship with Tencent is terminated or curtailed due to Tencent’s initiating its own general search service or partnering with other search engine companies, or if any of the commercial terms were to be revised or made less favorable to Sogou, or if Tencent does not continue to deliver to Sogou an adequate level of access to its platforms or adequately promote Sogou’s products and services, Sogou’s business and prospects will be adversely affected.

In September 2018, Sogou and Tencent agreed to extend until September 2023 the period during which Sogou Search will be the default general search engine for Tencent’s products that provide general search offerings in accordance with Sogou’s existing business collaboration arrangements with Tencent. In addition, Sogou and Tencent have agreed to continue from September 2020 until September 2021 Sogou’s initiative for the integration into the existing Weixin/WeChat search service of a search function powered by Sogou Search that allows Weixin/WeChat users to access Internet information outside Weixin/WeChat and have agreed that Sogou Search will be the preferred third-party search function to power such a Weixin/WeChat search function for that period provided Sogou Search meets “Tencent’s requirements for user experience,” and that the arrangement may be extended for additional successiveperiods through September 2023 if offering Sogou Search will not “harm the user experience.” It is difficult for us to predict the potential impact of the integration of Sogou Search to power such a Weixin/WeChat search function measured under the standards of “Tencent’s requirements for user experience” and/or “harm the user experience.” The potential for growth of Sogou’s business through such integration will be limited if Tencent does not make Sogou Search the preferred search function or decides not to extend the arrangement for such integration and a Tencent search function or a search function of one of Sogou’s competitors is given priority over Sogou’s in Weixin/WeChat.

Sogou’s existing business, and its strategy for developing its business, involve maintaining and developing various types of collaborations with third parties, which provide it with access to additional user traffic, search services, products, and technology. For example, Sogou’s Wise Doctor delivers healthcare information, and receives healthcare data, through partnerships that provide Sogou with access to articles written by physicians and to asponsored healthcare encyclopedia; Sogou’s partnership with Zhihu Technology Limited, a company that engages primarily in the business of operating an online question and answer-based knowledge and information sharing platform (“Zhihu”), provides Sogou with access to aplatform; Sogou’s partnership with Microsoft’s Bing provides Sogou with the technology to provide its users with English content on the Internet that Sogou translates to Chinese in connection with itssearch service; and Sogou’s partnership with China Literature Limited, an online literature platform, enables its users to access literature from a large online collection. In addition, Sogou’s various partnerships withInternet properties provide its advertisers significant exposure to users beyond its core search user base. We consider these collaborations to be important to Sogou’s ability to deliver attractive service, product, and content offerings to its users, in order to maintain and expand its user and advertiser bases, and we believe that it will continue to be important for Sogou to develop similar partnerships in the future. Sogou’s inability to maintain and grow such relationships could have an adverse impact on its existing business and its growth prospects.

Sogou places certain of its advertisers’ promotional links on the Internet properties of third parties, thereby expanding the base of users accessing the advertisements beyond Sogou’s own user base, and increasing Sogou’srevenues. If these third parties decide to use a competitor’s or their own online search services, or do not prominently display Sogou’s advertisements in comparison to those of other advertisers on their properties, or if Sogou fails to attract additionaloperators of Internet properties, Sogou’s advertising revenues and growth may be adversely affected.

Sogou’s revenues were $1.12 billion, $1.17 billion, and $924.7 million for the years ended December 31, 2018, 2019, and 2020, respectively. The decrease in Sogou’s revenues from 2019 to 2020 resulted from uncertainties with respect to Sogou’s business policies among certain advertisers as a result of the currently pending Tencent/Sohu Sogou Share Purchase and Sogou Merger, unfavorable macroeconomic conditions resulting from thepandemic, and regulatory headwinds in the Internet industry in China. In addition, although Sogou’s traffic acquisition costs increased only moderately for 2020, if they trend higher in the future as they did prior to 2019 due to intensifying competition for channel partnerships, it could be difficult for Sogou to sustain expenditures for traffic acquisition at the same level as Sogou’s competitors, which could result in slower or flat growth, or even a reduction, in Sogou’s user traffic, which would have a negative impact on Sogou’s revenues and revenue growth prospects. Sogou may not be able to resume growth in future periods similar to that it experienced prior to 2020, and Sogou’s revenues may continue decline. Accordingly, you should not rely on the results of any prior period as an indication of Sogou’s future financial and operating performance.

Sogou earns most of its revenues from its search and search related advertising services. Advertisers will not use Sogou’s services if they do not find them to be effective in producing a sufficient volume ofand desired results for advertisers. Sogou’s advertisers are generally able to terminate their relationships with it at any time without penalty if they are not satisfied with its services, choose its competitors for similar services, or advertise in media channels other than Internet search. Therefore, it could be difficult for Sogou to maintain or increase its advertiser base, and its revenues and profits could decline or fail to increase.

Sogou’s business heavily depends upon the services of its key executives, particularly Xiaochuan Wang, its Chief Executive Officer. If any of Sogou’s key executives is unable or unwilling to continue in his or her present position, joins a competitor, or forms a competing company, Sogou’s business may be severely disrupted. Although Sogou’s executive officers have entered into employment agreements, confidentiality agreements, andagreements with Sogou, the degree of protection afforded to an employer pursuant to confidentiality andundertakings by persons employed in the PRC may be more limited when compared to the degree of protection afforded with respect to employees in some other jurisdictions. Sogou does not maintainlife insurance for any of its key executives.

In addition to organic growth, Sogou may take advantage of opportunities to invest in or acquire additional businesses, services, assets or technologies. However, Sogou may fail to select appropriate investment or acquisition targets, or Sogou may not be able to negotiate optimal arrangements, including arrangements to finance any acquisitions. Acquisitions and the subsequent integration of new assets and businesses into Sogou could require significant management attention and could result in a diversion of resources away from Sogou’s existing business. Investments and acquisitions could result in the use of substantial amounts of cash, increased leverage, potentially dilutive issuances of equity securities, goodwill impairment charges, amortization expenses for other intangible assets and exposure to potential liabilities of the acquired business, and the invested or acquired assets or businesses may not generate the financial results Sogou expects. For example, the private companies that Sogou has invested in could be adversely affected by theoutbreak, which may lead to impairment in the fair values of Sogou’s investments and in turn adversely affect Sogou’s financial condition and operating results. Moreover, the costs of identifying and consummating these transactions may be significant. In addition to obtaining the necessary corporate governance approvals, Sogou may also need to obtain approvals and licenses from relevant governmental authorities for the acquisitions to comply with applicable laws and regulations, which could result in increased costs and delays.

Sogou’s performance is largely dependent on talented andindividuals. Sogou’s future success depends on its continuing ability to identify, develop, motivate, and retainpersonnel. Sogou has a history of using low oremployee share options as an important component of competitive pay packages, in order to align Sogou’s employees’ interests with the interests of Sogou and its shareholders and to encourage quality employees to join and remain with Sogou. Sogou has adopted guidance on accounting forcompensation that requires the measurement and recognition of compensation expense for allcompensation based on estimated fair values. As a result, Sogou’s operating results contain charges forcompensation expense related to employee share options. The historical and future recognition ofcompensation in Sogou’s statements of comprehensive income has had and will have an impact on its results of operations. On the other hand, if Sogou alters its employee share incentive plans to minimize the correspondingcompensation expense, it may limit Sogou’s ability to continue to useawards as a tool to attract and retain its employees, and it may adversely affect Sogou’s operations. In addition, there may be future changes in the U.S. GAAP requirements for recognition ofcompensation expense, which could have similar effects on Sogou’s results operations and its competitiveness in the market for key employees.

Certain facts, forecasts, and other statistics relating to the industries in which Sogou competes contained in this annual report have been derived from various public data sources and a commissionedindustry report. In connection with our preparation of this annual report, Sogou commissioned iResearch to provide market research concerning the online search industry in China. In deriving the market size of this industry, iResearch may have adopted different assumptions and estimates for certain metrics from what others might have adopted. While we generally believe the report to be reliable, neither we nor Sogou has independently verified the accuracy or completeness of such information. Such report may not be prepared on a comparable basis or may not be consistent with other sources.

We cannot be certain that the products, services and intellectual property used in Sogou’s normal course of business do not or will not infringe valid patents, copyrights or other intellectual property rights held by third parties. Sogou currently is, and may in the future be, subject to claims and legal proceedings relating to the intellectual property of others in the ordinary course of its business, and may in the future be required to pay damages or to agree to restrict its activities. See “-Pending or future litigation could have an adverse impact on Sogou’s financial condition and results of operations.” In particular, if Sogou is found to have violated the intellectual property rights of others, Sogou may be enjoined from using such intellectual property, may be ordered to pay damages, and may incur licensing fees or be forced to develop alternatives. Sogou may incur substantial expense in defending againstinfringement claims, regardless of their merit. Successful infringement claims against Sogou may result in substantial monetary liability or may materially disrupt the conduct of its business by restricting or prohibiting its use of the intellectual property in question.

It is possible that content that is made available by Sogou through its search results may violate the intellectual property rights of third parties. PRC laws and regulations are evolving, and uncertainties exist with respect to the legal standards for determining the potential liability of online search service providers for search results that provide links to content onwebsites that infringes copyrights of third parties. In December 2012, the Supreme People’s Court of the PRC promulgated a judicial interpretation providing that PRC courts will place the burden on Internet service providers to remove not only links or content that has beenin notices of infringement from persons and entities claiming copyright in such content, but also links or content that the providers “should have known” contained infringing content. This interpretation could subject Sogou to significant administrative burdens and might expose it to civil liability and penalties. Further, Sogou relies on content provided by professional researchers and writers, either developed by the outlets themselves or adapted from content of parties separate from such outlets, and it is difficult for Sogou to fully monitor such content, which could make Sogou more vulnerable to potential infringement claims.

Sogou hosts and provides a wide variety of products and services that enable advertisers to advertise products and services, and users to exchange information and engage in various online activities. Sogou may be subject to claims, investigations, or negative publicity relating to such activities. PRC laws and regulations relating to the liability of providers of online products and services for activities of their users are not fully developed, and their current and future reach is unclear. Also see “-Sogou may be subject to regulatory investigations and sanctions for inappropriate or illegal content that is accessed through its search results.” Sogou also places advertisements onInternet properties, and Sogou offers products and services developed or created by third parties. Sogou may be subject to claims concerning these products and services based on its involvement in providing access to them, even if Sogou does not offer the products and services directly. Sogou could be required to spend considerable financial and managerial resources defending any such claims, and they could result in Sogou’s having to pay monetary damages or penalties or ceasing certain aspects of its business, which could have an adverse effect on its business and results of operations.

Sogou collects, processes, and stores on its servers significant amounts of data concerning its users. While Sogou has taken steps to protect its user data, its security measures could be compromised, because techniques used to sabotage or obtain unauthorized access to systems change frequently and generally are not recognized until they are launched against a target, and Sogou may be unable to anticipate these techniques or to implement adequate preventative measures. In addition, Sogou is subject to various regulatory requirements relating to the security and privacy of such data, including restrictions on the collection and use of personal information of users and steps Sogou must take to prevent personal data from being divulged, stolen, or tampered with. Regulatory requirements regarding the protection of such data are constantly evolving and can be subject to significant change, making the extent of Sogou’s responsibility in that regard uncertain. For example, the PRC Cybersecurity Law became effective in June 2017, but it is unclear as to the circumstances and standard under which the law would apply and violations would be found, and there are great uncertainties as to the interpretation and application of the law. It is possible that Sogou’s data protection practice is or will be inconsistent with regulatory requirements. See ‘‘Government Regulation and Legal Uncertainties—Miscellaneous—Laws and Regulations Related to Consumer Protection and Privacy Protection—Privacy Protection.” and “Government Regulation and Legal Uncertainties—Miscellaneous—Laws and Regulations Related to Security and Censorship.” In addition, the PRC government may promulgate new laws or regulations regarding the protection of personal data. For example, on May 28, 2019, the CAOC issued for public comment draftand on August 16, 2020, the Standing Committee of the National People’s Congress issued for public comment a draft(such draft administrative measures and draft law together, the “Draft Data Security Laws”), which purport to regulate the collection, storage, transmission, processing, and usage of data and other related data activities within China, but it is unclear whether and/or when the Draft Data Security Laws will be enacted. On October 21, 2020, the Standing Committee of the National People’s Congress issued for public comment a draft(the “Draft Personal Information Protection Law”), which purports to regulate the collection, transmission, processing, and usage of personal information, the processing of sensitive personal information, and the cross-border provision of personal information and includes other relevant rules and regulations, but it is unclear whether and/or when the Draft Personal Information Protection Law will be enacted. If current or future laws and regulations are interpreted and applied in a manner that limits or prohibits any of Sogou’s current practices, or if additional or different requirements are imposed by these laws and regulations, complying with such interpretations, applications, and requirements could cause Sogou to incur substantial expense or require Sogou to alter its practices in a manner that could harm its business. We cannot assure you that Sogou’s existing user information protection systems and technical measures will be considered sufficient under current and future applicable laws and regulations. Any systems failure or compromise of Sogou’s security, including through employee error, that results in the release of its user data could seriously harm its reputation and brand, impair its ability to retain and attract users and advertisers, expose it to liability to users whose data is released, and subject it to sanctions and penalties from governmental authorities. Sogou also could be liable for any security breaches of its advertisers’ confidential information. Any security breaches exposing such information could damage Sogou’s reputation and deter current and potential users and advertisers from using its services.

Sogou’s user traffic may decline if anycompromise of security occurs. “Hacking” involves efforts to gain unauthorized access to information or systems or to cause intentional malfunctions or loss or corruption of data, software, hardware, or other computer equipment. Techniques used by hackers to obtain unauthorized access or sabotage systems change frequently and often are not recognized until launched against a target, which means that Sogou may be unable to anticipate new hacking methods or implement adequate security measures. Hackers, if successful, could misappropriate proprietary information or cause disruptions in Sogou’s service. Sogou may be required to expend capital and other resources to protect its Internet platforms against hackers, and measures Sogou may take may not be effective. In addition, the inadvertent transmission of computer viruses could expose Sogou to a risk of loss or litigation and possible liability, as well as damage its reputation and decrease its user traffic.

Sogou’s business may be adversely affected bysoftware applications, which may be unintentional or malicious, that make changes to its users’ PCs or mobile devices and interfere with its products and services. These software applications may change Sogou’s users’ experience by hijacking queries, altering or replacing its search results, or otherwise interfering with its ability to connect with its users. Such interference can occur without disclosure to or consent from users, and users may associate any resulting negative experience with Sogou’s products and services. Such software applications are often designed to be difficult to remove, block, or disable. Further, software loaded on or added to mobile devices on which Sogou’s search or other applications, such as Sogou Input Method, aremay be incompatible with or interfere with or prevent the operation of such applications, which might deter the owners of such devices from using Sogou’s services.

The development of software that blocks Internet advertisements before they appear on a user’s screen may hinder the growth of online advertising. Since Sogou’s advertising revenues are generally based on userthe expansion ofon the Internet may decrease its advertising revenues, because when advertisements are blocked they are not downloaded from the server, which means such advertisements will not be tracked as a delivered advertisement. In addition, advertisers may choose not to advertise on the Internet or on or through Sogou’s sites because of the use by third parties of Internet advertisement blocking measures. In addition, increasing numbers of browsers include technical barriers designed to prevent Internet information service providers such as Sogou to track the browsing history of their Internet users, which is also likely to adversely affect the growth of online advertising and hence Sogou’s business and growth prospects.

Sogou’s business is exposed to the risk offraud on its paid search results.fraud occurs when a person clicks paid search results for a reason other than to view the underlying content of search results. If Sogou fails to detect significant fraudulent clicks or otherwise is unable to prevent significant fraudulent activity, the affected search advertisers may experience a reduced return on their investment in itsservices and lose confidence in the integrity of itsservice systems, and Sogou may have to issue refunds to its advertisers and may lose their future business. If this happens, Sogou may be unable to retain existing advertisers and attract new advertisers for itsservices, and its search revenues could decline. In addition, affected advertisers may also file legal actions against it claiming that Sogou hasor failed to refund them. Any such claims or similar claims, regardless of their merit, could beand costly for Sogou to defend against and could also adversely affect its brand and its search advertisers’ confidence in the integrity of itsservices and systems.