Hyosung D&P Co., Ltd.Inch'on-jikhalsi, South Korea
ACS Industries, Inc.Rhode Island, United States
Columbiana Hi Tech LLCNorth Carolina, United States
Shiyan Taixiang Industry Co., Ltd.Hubei Sheng, China
Chow Tai Seng Jewelry Co. Ltd.Guangdong Sheng, China
Nippon Diamond Co., Ltd.
Jiangsu Subei Flower Co., Ltd.
Patek Philippe SAGenève, Switzerland
Fort Wayne Wire Die, Inc.Indiana, United States
Diabrasive International Ltd.
Carbodiam NV
Scio Diamond Technology Corp.South Carolina, United States