Stock code: 688098 Stock abbreviation: Shenlian Biotechnology Announcement No.: 2025-013

Shenlian Biopharmaceutical (Shanghai) Co., Ltd

About passing the supervision and inspection of veterinary drug GCP of the Ministry of Agriculture and Rural Affairs

voluntary disclosure announcements

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or major omissions in the content of this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Shenlian Biopharmaceutical (Shanghai) Co., Ltd. (hereinafter referred to as the "Company") has recently passed the supervision and inspection of the Quality Management Practice (GCP) for Veterinary Drug Clinical Trials of the Animal Husbandry and Veterinary Bureau of the Ministry of Agriculture and Rural Affairs. The information of the trial project that has passed the supervision and inspection and meets the requirements of Good Clinical Practice (GCP) for veterinary drugs is as follows:

Classification Test item Name of animal experiment site

Pet safety test Lanzhou Youantang Animal Medical Co., Ltd., Zhongchuan Park New

(Veterinary biological products) pet animal service clinic, Lingbao Bole Animal Hospital Center,

Jianyang Jiancheng Youai Pet Hospital

Lanzhou You'antang Animal Medical Co., Ltd., Zhongchuan Park New

Pet Effectiveness Test Pet Animal Service Clinic, Lingbao Bole Animal Hospital Center,

(Veterinary biological products) Jianyang Jiancheng Youai Pet Hospital, Shenlian Biomedical (Shanghai

Veterinary Drug Clinical Trial) Co., Ltd. Lanzhou Branch (Animal Laboratory)

Quality Management Practices

(GCP) Zhongwei Hongyuyuan Dairy Farming Farmers Professional Cooperative, Yongdengxin

Cattle safety test

(Veterinary biological products) Wanxia Breeding Family Farm, Xinzhou Yinshan Lake Dairy Farming Co., Ltd

manage

Zhongwei Hongyuyuan Dairy Farming Farmers Professional Cooperative, Yongdengxin

Cattle effectiveness test Wanxia Breeding Family Farm, Xinzhou Yinshan Lake Dairy Farming Co., Ltd

(Veterinary Biological Products) Division, Shenlian Biopharmaceutical (Shanghai) Co., Ltd. Lanzhou Branch

Company (Animal Laboratory)

Veterinary drug GCP is the quality management standard for veterinary drug clinical trials, which is a specification formulated in accordance with the "Regulations on the Administration of Veterinary Drugs" in order to standardize the process of veterinary drug clinical trials and ensure the authenticity, completeness and accuracy of test data. The company passed the supervision of the Ministry of Agriculture and Rural Affairs Animal Husbandry and Veterinary Bureau of Veterinary Drug Clinical Trial Quality Management Practice (GCP).

A total of 4 inspection items were inspected, marking that the company has newly carried out clinical trials of the safety and effectiveness of veterinary biological products for pets and cattle after having the qualification to carry out clinical trials on the safety and effectiveness of veterinary biological products in pigs, laying the foundation and guarantee for the rapid advancement of the company's new product research and development; At the same time, it marks a new level of standardized innovation and evaluation capabilities of the company's veterinary drugs, which will further improve the company's R&D strength and core competitiveness, and promote the company's implementation of diversified development strategy. In the future, the company will continue to promote the construction of veterinary drug GCP, further standardize the process of veterinary drug clinical trials, improve the quality of veterinary drug clinical trials, and improve the scientific research level of veterinary biological products, so as to escort the sustainable development of animal health in China.

The company has passed the supervision and inspection of the quality management practice (GCP) for clinical trials of veterinary drugs, which will not have a significant impact on the company's operating performance in the short term.

The announcement is hereby made.

Board of Directors of Shenlian Biopharmaceutical (Shanghai) Co., Ltd

April 2, 2025