Jiangsu Haishida Power Source Co., Ltd., established in 1992, is a national-level high-tech enterprise. The company focuses on the research and development, production, and sales of lithium-ion batteries and battery systems, concentrating on the fields of power tools, smart home appliances, and energy storage. Located in the Economic Development Zone of Qidong City, Jiangsu Province, the company has established a corporate research institute, a national post-doctoral scientific research workstation, the first battery and material engineering research center in Jiangsu Province, an academician workstation, and other scientific research platforms. On June 2, 2022, the listed company Polyt (Pu Li Te) announced a reorganization, which will become the controlling shareholder of Haishida. This will greatly enhance the company's capital strength and management capabilities. Haishida adheres to the vision of "creating unlimited quality and building a century-old enterprise," insists on the development strategy of "taking science and technology as the guide to create core competitiveness," and insists that "quality is the cornerstone of Haishida's value and dignity." For more than twenty years, it has been dedicated to the power supply industry, possessing core technologies throughout the entire industry chain, including materials, components, cells, battery management systems, and power system integration, with an annual battery production capacity of 3GWH. The company's products have been widely used in fields such as power tools, military communications, communication backup power, new energy storage, rail transit, aerospace, military weapons and equipment, electric vehicles, and emergency lighting for fire fighting. The technical level of the products has reached an internationally advanced level, and several products have won the title of national new products.