As the world’s top supplier, we are contributing to the advancement of the flexible printed board industry.

We are the only one supplier with an integrated manufacturing system, covering mining copper concentrate, smelting and refining copper, producing copper ingots, rolling ingots into foil, and surface treating of foils, within the same Group. We have outstanding production and quality management systems supporting global top market shares. At the same time, utilizing our integrated manufacturing system, we are developing and supplying the broadest range of treated rolled copper foil products to satisfy customers’ needs. As the best approach to higher quality in flexible printed circuit boards, we confidently recommend our Treated Rolled Copper Foil.