On May 26, 2026, Chinese media outlet Diyi Caijing reported that antibiotics significantly exceeding standard limits were detected in pork produced by a subsidiary of major meat producer Henan Shuanghui Investment Development (Shuanghui Development), leading to a drop in its stock price, and that the company announced countermeasures.

The article reported that a spot check by the Heilongjiang Provincial Market Supervision Administration found the antibiotic lincomycin, reaching 37.5 times the standard limit, in pork thigh produced by Wangkui Shuanghui Beidahuang Food, a consolidated subsidiary of Shuanghui Development.

Furthermore, the administration ordered the suspension of display and recall of non-compliant products and initiated disciplinary procedures for violations of laws and regulations, the article reported. It also conveyed that during morning trading on the Shenzhen market on the 26th, Shuanghui Development's stock price temporarily fell by over 5% from the previous day and closed the morning trading session down 3.9%.

The article mentioned that in response to an inquiry from Diyi Caijing, a representative for Shuanghui Development's securities affairs replied that the detection of antibiotics was due to veterinary drugs used during the pig farming stage. After explaining that the subsidiary does not operate local breeding businesses but is responsible for slaughtering and processing, it was reported that the company indicated a policy to strengthen supplier management for live pigs and increase the frequency of residue inspections in the future.

Furthermore, regarding this matter, a pig farmer was reported to have said, "It is an abnormal and serious situation for lincomycin to exceed the national standard by 37 times."

According to the article, Shuanghui Development's sales have been declining for five consecutive years, and the sales of the problematic subsidiary in 2025 were also 1.42 billion yuan (approximately 33 billion yen), a 4% decrease compared to the previous year.

Furthermore, according to Xinhua News Agency, if animal products containing lincomycin above the standard limit are consumed long-term, it could potentially cause gastrointestinal disorders, allergic reactions, and abnormalities in liver and kidney function.