Yongjin Technology Group Co., Ltd. (Securities abbreviation: Yongjin Co., Ltd. • 603995•SH) was founded in August 2003. It has now become an enterprise integrating the research and development, production, sales and service of cold-rolled stainless steel plate and strips, with product coverage. Precision cold-rolled stainless steel plate and wide-width cold-rolled stainless steel plate and belt are widely used in electronic information, household appliances, medical devices, environmental protection chemicals, automobile transportation and other industries. Four major production bases have been established in Zhejiang, Jiangsu, Fujian and Guangdong, and inland production bases have been built in Gansu, building a nationwide production and operation and service network.

Yongjin Co., Ltd. is a national high-tech enterprise and a national torch plan project undertaking unit, with a provincial enterprise technology center, a provincial high-tech enterprise research and development center, a Zhejiang Provincial Postdoctoral Workstation and a Jiangsu Provincial Postdoctoral Workstation. The company has always paid great attention to the improvement of production processes, the research and development of technical equipment and the development of new products. The company is one of the domestic enterprises that can independently design and develop stainless steel cold rolling automation production lines. The 20-roll reversible precision cold rolling mill and other self-designed and developed complete sets of stainless steel cold rolling automation production lines have reached the international advanced level.

In recent years, while deepening its main business, the company has also extended the downstream new materials industry. In August 2020, it established a holding subsidiary Jiangsu Available and entered the field of layered composite materials; in April 2021, it acquired Yinyang Pipe industry, entering the stainless steel water pipe industry, the company is optimistic about the market prospects of the stainless steel water pipes. At the same time, in order to better manage and expand the stainless steel water pipe business, it acquired Shenzhen Minle Pipe Industry in September 2023, further expanding the company's production capacity and market share in this field. In October 2022, a holding subsidiary Henan Zhongyuan Titanium Industry was established to carry out the titanium material project; in November 2022, a wholly-owned subsidiary Zhejiang Prattling Competition was established to carry out the special shell material project for columnar batteries. The attempt in new fields is also an embodiment of the company's diversified development strategy using the advantages of industrial chain integration.

Yongjin Co., Ltd. has always adhered to the tenet of "unity, pragmatism and development", and is committed to becoming an industry leader. It is based in the national and overseas markets. With first-class services, first-class technology and first-class products, it has achieved excellent industry brands and provided Value industry services.