Tanaka Kikinzoku Group is a leading precious metals trader, refiner and manufacturer with a history well over a hundred years. It is highly regarded internationally for its high specification industrial products which are used in a wide array of applications.

Heraeus is a globally active precious metals and technology Group with firm roots in Germany, headquartered in Hanau near Frankfurt. The company has been family-owned for more than 155 years. Precious metals, sensors, dental products and biomaterials, quartz glass, and specialty lighting sources are the focus of our activities

Kulicke & Soffa is the world's leading supplier of semiconductor assembly equipment, tools and materials, including gold bonding wire

The METALOR Group is based in Switzerland with subsidiaries in 15 countries over the world. The company is comprises four divisions; refining, watches & jewellery, advanced coatings and electrotechnics.

As one of the world's leading gold bonding wire manufacturers, SMM produces a range of gold wire in strictly controlled clean rooms at three manufacturing factories, one in Japan and the others in Malaysia and Taiwan