A decade after Google’s hopeful but ill-fated entry into China, U.S. Internet companies may see the Chinese market as even more tantalizing—yet impenetrable. The number of Chinese Internet users has surged to some 700 million, and they represent a valuable untapped resource for American companies with saturated, highly competitive home markets. But the Communist Party’s attempts to control information have also grown more intense. In addition to the “Great Firewall” that blocks access to foreign websites, legions of human censors, many employed at Internet companies, police domestic blogs and social networks. And a U.S. company would now have to compete with China’s own Internet giants. WeChat, a messaging app from the behemoth Tencent, has hundreds of millions of users.

Zuckerberg clearly thinks China is worth the trouble, even if that means leaving some “Western values” at the door. Earlier this year, he traveled to Beijing and had a high-profile meeting with China’s propaganda chief, Liu Yunshan. Chinese state media reported that Facebook’s founder praised China’s Internet progress and pledged to work with the government to create a better cyberspace. Liu highlighted the notion of Internet governance “with Chinese characteristics.” The translation was clear: a Chinese version of Facebook would definitely be censored. This year’s trip was something of a sequel. In 2014, he hosted Lu Wei, minister of the Cyberspace Administration of China, at Facebook’s offices. President Xi Jinping’s book The Governance of China just happened to be on ­Zuckerberg’s desk.

This courtship hasn’t been without some awkward moments. When ­Zuckerberg posted a photo of himself cheerfully jogging through the polluted haze of Tiananmen Square this year, he was mocked on Chinese social media. But overall he has made the right moves, says Cheng Li, director of the John L. Thornton China Center at the Brookings Institution. “Chinese leaders pay a lot of attention to personal relationships,” he says. “They think Mark ­Zuckerberg is a friend of China. He’s successful. He’s very China-friendly. He has a Chinese wife. He speaks Chinese. So what else do you want?”

At your service

Facebook will still have to overcome Beijing’s suspicions that American Internet companies could destabilize the Communist Party’s rule. Media outlets that described the Arab Spring as the “Facebook Revolution” didn’t do the company any favors. And documents leaked by the former intelligence contractor Edward Snowden fueled Chinese suspicions that American technology companies had “back doors” for U.S. government surveillance.

But Facebook’s potential to help Chinese businesses go global could lead Beijing to see the company as a net positive. It already sells advertisements to Chinese companies for display outside the country, but launching a version of Facebook in China could strengthen the connections between Chinese companies and overseas customers.

The fact that China now has mature social-media companies of its own might also make the government less wary of Facebook. The company would be unlikely to displace incumbents such as the ubiquitous WeChat, which has taken hold in China in a way that few outside the country truly appreciate. People use WeChat not only to communicate but to make purchases, hail taxis, and book doctor’s appointments. In America you can say “I’m not on Facebook” and still be a functioning member of society. Avoiding WeChat in China is much harder.

Zuckerberg’s overtures to China have already caused some alarm, but he doesn’t seem to care.

Facebook doesn’t have to unseat WeChat in order to succeed. Capturing a relatively small fraction of China’s enormous Internet market could bring in significant revenue. The U.S. company should be able to differentiate itself by providing a bridge to the wider world. “WeChat can’t compete in that domain,” says Cheng, of the Brookings Institution. “Facebook is a global name. WeChat is a Chinese name.”

Google could make a similar argument. Despite closing down its Chinese search engine in 2010, Google still sells advertisements in China. Lokman Tsui, Google’s former head of free expression for Asia and the Pacific and now an assistant professor at the Chinese University of Hong Kong, says, “If you are a Chinese company and want to reach global audiences, Google is still a really good option.”

This past June, Google’s CEO, ­Sundar Pichai, said that he wanted the company to properly return to the country. “We want to be in China, serving Chinese users,” he said, speaking at the Code Conference. Tsui says there have been “rumors” that Google’s Play Store may enter China (the company declined to comment). Google’s Android mobile operating system is wildly popular in China, but the company’s ability to extract revenue from that position is limited because the Play Store isn’t ­available.

Google’s troubled history with Beijing represents a considerable hurdle, however. “They are certainly not trusted,” says Kaiser Kuo, formerly director of international communications at the Chinese search engine Baidu and now the host of the Sinica podcast at China-focused media startup SupChina. Kuo, a well-respected voice on Chinese Internet issues, thinks Facebook’s China prospects look promising. “It’s likely that they will be in with some of their significant services within the coming year,” he says. “There is fairly high-profile engagement with high-ranking Chinese officials and ranking brass at Facebook. You can’t ignore those signals.”

Deal with it

If Facebook does get the green light from Beijing, sticky questions remain about the conditions that would be attached. Would it have to work with a Chinese partner? Would the government require that Facebook store data inside China, making it easier for authorities to access?

Some technical challenges are already clear. Facebook wants to bring everyone into a global network, but Chinese users would be offered very different experiences from those available to their friends in other countries. Sparapani, Facebook’s former policy director, argues that this shouldn’t be hard to do. “You can geo-fence just about anything,” he says. For example, Facebook already occasionally alters what people in different places around the world can see on the site. In 2015 the company blocked users in France, and only France, from viewing a photo of terrorist attack victims. That same year, a photo of a boy urinating on the Indian flag was made unavailable in India. After receiving a request from the U.K. Gambling Commission, Facebook restricted U.K. access to groups promoting raffles.

Regularly censoring Chinese pro-democracy activists would generate much more controversy. Zuckerberg’s overtures to China have already caused some alarm; his recent Beijing trip triggered tweets tagged with #suckerberg. But Zuckerberg doesn’t seem to care. If he were so worried about accusations of cozying up to China, then he probably would not have asked President Xi ­Jinping to give his baby a Chinese name (Xi declined) or so publicly made nice with his propaganda chief.

Zuckerberg likes to say that Facebook exists to “make the world more open and connected.” China is an important part of this plan. Google made a similar argument when it went to China in 2006: It’s better to be there than not. More connectivity is good, even if you have to make a few sacrifices along the way, such as participating in Chinese censorship.

Would Americans buy that argument? Maybe not. Journalists would write scathing articles. Activists and social-media users would unleash derision. U.S. government officials might express concern. But people would keep using Facebook.

Emily Parker has covered China for the Wall Street Journal and been an advisor in the U.S. State Department. She is the author of Now I Know Who My Comrades Are: Voices from the Internet Underground.