Keystone Electric Wire&Cable Co Ltd

Keystone was established in Hong kong in 1969, under its previous name keystone industrial co ltd. Its main product lines include copper wire, low voltage power cable, control cable and telecommunication cable. The company's efforts to upgrade its quality standard and expand its product lines LED to the formation of a joint venture with the world's second largest copper producer-phelps dodge corporation of United stated of America in 1991. With their technical collaboration, keystone has improved its production and advanced the manufacturing technology to include the latest state of the art equipment.

In 1970s, the company has been granted ul & csa product certification. In december 1993 basec, UK has awarded iso9002 certification. Later, in february 1994, the company's product of low voltage power cable was granted product certification in compliance to british standards under product scheme of basec.