
Shenzhen Changxing Technology Co., Ltd.

Zhongnan Industrial Group Ltd.

Shiyan Taixiang Industry Co., Ltd.Hubei Sheng, China

Advanced Technology & Materials Co., Ltd.Beijing Shi, China

Stuller, Inc.Louisiana, United States

Diamond Products International, Inc.

Envea SAIle-de-France, France

Patek Philippe SAGenève, Switzerland

Kinugawa Rubber & Plastic Guangzhou Co., Ltd.

Concut, Inc.Washington, United States

Condias GmbHSchleswig-Holstein, Germany

CVD Diamond Corp.