Notes on WuXi AppTec:
We met with the co-CEO of WuXi, Steve Yang, at one of their research campuses in Shanghai. (Yang said he was an avid reader of
@AsimovPress, which is nice.)
WuXi was mentioned in the U.S. BIOSECURE act as a "company of concern." The U.S. claimed that WuXi has ties to the CCP and that genetic data and IP from U.S. companies flowed through WuXi back to Beijing. (The final BIOSECURE act, signed into law in Dec. 2025, does not mention WuXi anymore, and the company isn't currently designated as a company of concern.)
When we walked into the building, Dr. Yang gave us a tour of the first floor. It's common for Chinese companies and universities to a) take a photo with guests in the lobby and b) give a short, guided tour. WuXi had an entire wall in their lobby (not pictured) about how much they respect IP, which was fascinating.
WuXi was founded in 2000 by Ge Li. It began as a chemical catalog; Ge would sketch out chemicals by hand, synthesize them, and sell to local businesses in Shanghai. There is a photo of this first chemistry lab in the WuXi lobby, and it's hilarious because the photo is sepia-toned to look old, even though the company is not that old.
WuXi has about 34,000 employees, 8,000 of them across its Shanghai campuses, and it runs a service-only model for biopharma companies. WuXi emphasized that they don't have any internal drug pipelines of their own.
The company sits in a free trade zone within Shanghai, meaning there is no customs duty. The major hubs in China are Shanghai, Suzhou, and Hangzhou, but they also have huge manufacturing facilities in Germany, Switzerland, and elsewhere. It also has a about 120,000-square-meters worth of GMP facilities, and the U.S. remains its single largest source of business.
Yang emphasized (quite a lot) that the FDA has had a Beijing office since 2010, and inspectors from the FDA can show up at WuXi unannounced, any time they want. They typically make a courtesy call a few hours ahead of time, but then they arrive and can go through all equipment records, interview employees, ask for any raw data they want, and so on. WuXi recorded 741 quality inspections and audits in 2025 (only a few of which are from the FDA, presumably) and they say they take this very seriously because if they fail at all, they can get blacklisted and then become unable to work with US companies and, thus, lose a huge fraction of their business. This and IP issues were major talking points.
In the last 12 months, WuXi ran discovery on 420,000 compounds, supported 3,369 programs from preclinical through Phase 3, and delivered 83 commercialized drug products or APIs. It made 8 of the 40 small molecules the FDA approved in 2024. WuXi has ~4,000 animal models. They have a 200-person team solely devoted to automating various parts of their company.
WuXi recently acquired two large non-human-primate breeding facilities; they now have 25,000 primates, which they use mostly for tox. Much more to come in a forthcoming writeup.