WuXi AppTec's DEL Platform Hit by Cybersecurity Incident, Operations Normal

After the market close on August 24, WuXi AppTec issued a voluntary announcement disclosing a recent cybersecurity incident on its DNA Encoded Library (DEL) platform, which is part of its biology business. The DEL platform is a professional encoded chemical compound library used for early-stage discovery projects. The announcement stated that the company immediately activated its emergency response mechanism, engaging external cybersecurity experts and legal counsel to address the situation and conduct a comprehensive investigation. To date, the company's information technology systems are operating normally, and the security of the DEL platform remains under control. No evidence has been found to suggest that any data has been made public, misused, or improperly utilized.

WuXi AppTec's business encompasses chemistry, testing, biology, and other segments. The DEL platform affected by this cybersecurity incident belongs to the biology business. The company has proactively contacted affected biology clients to communicate and explain the situation. Operations are currently normal, and the company's ability to serve clients has not been impacted. WuXi AppTec stated that it attaches great importance to data security and is working closely with cybersecurity experts and external legal counsel to conduct a thorough investigation and further strengthen network security protections. According to the company's 2022 annual results presentation, WuXi AppTec possesses a world-leading DNA-encoded compound library, which at that time served over 1,500 clients, contained more than 90 billion DEL compound molecules, and featured 6,000 unique molecular scaffolds and 35,000 molecular building blocks.

In recent years, several A-share listed companies have experienced hacker attacks or network intrusions. In April 2026, Longping High-Tech disclosed that its controlling subsidiary, Longping Agriculture Development Co. , Ltd. , had its overseas operating entity subjected to organized professional hacker attacks, resulting in a payment of funds to a U. S. bank account at the end of 2025. Following the incident, the listed company reported the matter to Brazilian police, U. police, and relevant domestic public security authorities, and initiated cross-border recovery procedures. Given the uncertainty of recovering the stranded US$6.0178 million, the listed company has made a full provision for the amount, impacting its 2025 net profit attributable to shareholders by RMB 21.243 million. Longping High-Tech stated that the incident was an isolated event and would not have a material adverse impact on the normal production and operations of the company or Longping Development.

In July 2024, Shengxi Integration's servers were suddenly attacked by hackers. After the incident, the company's IT department immediately activated information security defense and recovery mechanisms, and engaged external professional IT security consultants to handle the matter. The listed company stated at the time that there was no evidence that the cyberattack caused any data leakage or disclosure, that it had no material adverse impact on the company's operations, and that the incident was sporadic. The company said it would further review its existing information security architecture.