Defu Technology

Jiujiang Defu Technology Joint-stock Co., Ltd., established in 1985, is a leading enterprise in the global electrolytic copper foil industry, primarily engaged in the R&D, production, and sales of electrolytic copper foil, with products covering various high-performance lithium battery copper foil and electronic circuit copper foil. Currently, the company operates three electrolytic copper foil production bases in Jiujiang, Jiangxi, and Lanzhou, Gansu, with a total designed production capacity of 175,000 tons per year.
Defu Technology has been deeply involved in the copper foil industry for four decades, always focusing on technological innovation as the core of its development and placing great emphasis on independent R&D and technical accumulation. The company has made great efforts to build the Defu Research Institute, bringing together professional research teams and equipping them with advanced R&D facilities, continuously strengthening process innovation and manufacturing capabilities, and promoting high-quality sustainable development through technological breakthroughs. Meanwhile, around key links of the copper foil industry chain, the company has established supporting subsidiaries covering additive technology development, production equipment design and manufacturing, and R&D and production of electrolytic anode materials, fully mastering core copper foil technologies, providing customized solutions and professional technical services for downstream new energy and high-end consumer electronics fields.