Since its foundation in 1885, TANAKA Precious Metals has built a diversified range of business activities focused on precious metals. TANAKA is a leader in Japan regarding the volumes of precious metals handled. Over the course of many years, TANAKA Precious Metals has not only manufactured and sold precious metal products for industry but also provided precious metals in such forms as jewelry and resources. As precious metals specialists, all Group companies within and outside Japan work together with unified cooperation between manufacturing, sales, and technological aspects to offer products and services.

Tanaka Kikinzoku International (Thailand) Co., Ltd. was established in 2007 and is a subsidiary of Tanaka Kikinzoku Kogyo K.K., Japan. It's main business includes the Sales of Bonding Wire and Contact point and Plating Solution for Jewellery.