JIAYUAN.JIAYUAN was established in September 2001 as a comprehensive technology-driven group enterprise specializing in the research, manufacturing, and sales of high-performance electrolytic copper foil, composite copper foil, high-performance precision copper alloy wires and rods, as well as investment, construction, and services for wind, solar, and energy storage projects. Copper foil, as its core product, is primarily used in lithium-ion batteries, copper-clad laminates, and printed circuit boards. Its end applications span new energy vehicle power batteries, energy storage batteries, solid-state batteries, AI computing power, humanoid robots, multilayer circuit boards, and 3C digital electronics. The company actively advances product R&D innovation, achieving breakthroughs in developing new products such as micro-porous copper foil, single-crystal copper foil, high-grade RTF copper foil (reverse-turned foil), HTE (high-temperature high-elongation copper foil), HVLP (ultra-low-profile copper foil), ultra-thin copper foil for IC packaging, high-density interconnect (HDI) copper foil, composite copper foil, ultra-thin carrier copper foil. Key products include double-sided bright copper foil, high-strength high-elongation double-sided bright copper foil, RTF reverse-processed electrolytic copper foil, micro-perforated copper foil, IC packaging copper foil, and nickel-plated copper foil.
