A U.S. federal judge on August 7 granted a preliminary injunction blocking the U.S. Defense Department from enforcing its June 2026 designation of WuXi AppTec Co. as a Chinese military company [1, 2, 3, 4, 5]. Chief Judge James E. Boasberg of the U.S. District Court for the District of Columbia ruled the designation was likely arbitrary and capricious and lacked sufficient evidence supporting the labeling [1, 2, 3, 4, 5].

Judge Boasberg emphasized that labeling WuXi AppTec sends a clear negative signal to the marketplace. He stated the "烙上紅字傳遞出一個明確訊息：遠離它," meaning the red mark conveys a clear message to stay away from the company [2, 3]. He noted this causes customers and suppliers to cancel contracts and divert business to competitors [2, 3, 4, 5].

WuXi AppTec has about 450 employees in the U.S. and serves more than 1,000 U.S. customers. Approximately 70% of its revenue last year came from these U.S. customers [2, 4, 5]. Furthermore, WuXi AppTec’s board and executive management majority are U.S. citizens [2, 4, 5].

A spokesperson for WuXi AppTec called the military designation arbitrary, lacking factual basis, and a product of political pressure. They said, "我們相信，在客觀公平的司法審查後，我們在法庭文件中證實的事實終將不辯自明," meaning confidence that facts established in court filings will soon be self-evident [2]. WuXi AppTec sought relief to "免於國防部這項認定造成的立即不利後果," avoiding immediate harm caused by the Defense Department’s designation during litigation [4].

The Defense Department expanded its blacklist in June 2026 to include 188 Chinese companies deemed to support the Chinese military amid rising U.S.-China geopolitical tensions [2, 4, 5]. While the designation does not equate to formal sanctions, contracts with these companies are banned starting late 2026, and indirect purchases will be prohibited from 2027 [4]. WuXi AppTec’s market capitalization is approximately $43 billion [4].

The initial designation occurred on June 8, 2026, when the Defense Department officially added WuXi AppTec to its list of Chinese military-linked companies [4, 5]. The preliminary injunction issued August 7 temporarily halts enforcement of the designation as the case proceeds [1, 2, 3, 4, 5].