Mrisen is registered in the Kunshan Development Zone, with a production facility covering an area of 3, 000 square meters. Mrisen focuses on the production, system-level services, and R&D of high-purity metals, a key category of basic materials. It is a globally leading high-purity metal company in terms of process technology. Its products include 7N-8N copper and high-purity copper sulfate solution, which are used in advanced semiconductor manufacturing processes. The product quality is unique in China and at the forefront globally. To further strengthen its presence and cooperation in the semiconductor industry, and to promote technological innovation and industry development, Mrisen has officially become a member of JSSIA (Jiangsu Semiconductor Industry Association). Mrisen currently operates one ultra-high-purity metal development laboratory and is developing high-purity metal materials such as high-purity cobalt (including cobalt sulfate), 8N high-purity lithium, and high-purity gallium. From 2023 to 2024, Mrisen built a production line with an annual capacity of 70 tons of 7N ultra-high-purity copper and 3, 200 tons of electronic-grade copper sulfate solution (electroplating solution), which was successfully put into operation in August 2024. From 2025 to 2026, Mrisen plans to build a production line with an annual capacity of 200 tons of 7N ultra-high-purity copper and 12, 000 tons of electronic-grade copper sulfate solution.