TW Animal Protection is the aquaculture business segment of Tongwei Agricultural Development Co., Ltd. It is committed to providing all-round animal health care products and aquaculture technology services for aquaculture farmers. With professional scientific research strength, high-quality products, and professional services, TW Animal Protection has established a good reputation in the industry. It has set "being the best and striving for the first" as its development goal in recent years and is committed to becoming a leading brand in the Chinese aquatic environmental protection industry. TW Animal Protection owns three core subsidiaries, namely Chengdu Tongweisanxin Pharmaceutical Co., Ltd., Zhanjiang Haixianfeng Biotechnology Co., Ltd., and Ningbo Tianbang Biotechnology Co., Ltd. It operates five major brands such as "Yushuiqing", "Sanxin", "Xianfeng", "Haiba", and "Aishui", forming a rich and diverse product matrix to meet the needs of different markets and customers.

The business of TW Animal Protection covers the R&D, production, sales and technical services of aquatic animal health products. Its core markets are mainly concentrated in South China, Central China and East China regions. Relying on the national-level technical center of Tongwei Co., Ltd. and a team of hundreds of aquatic experts, and closely cooperating with domestic and foreign scientific research institutions, it has developed a number of high-quality products that meet market demand. It strictly controls the quality of raw materials, adopts modern production technology and quality management system to ensure the safety, stability and high efficiency of products.