- Duomi Metals Materialsas Co., ltd
- Oxide,Titanium Dioxide,Chemical,Bismuth,Copper,Nickel,Selenium,Tellurium,Zinc.
- Address:Flat 708, 7 / F, Golden Gate Comm. Bldg. , 136-138 Austin Rd, Tsimshatsui, Kln
- Sunc International Limited
- indium,bismuth,gallium,tellurium,magnesium,manganese,zirconium,rhodium,nonferro metal,vanadium,Indium Series,Gallium Series,Magnesium Series,Selenium Series.
- Address:Rm907, JWZ695, 177-183 Wing Lok Street, Hong Kong.
- Platotex Technology Co., Ltd.
- Tellurium,Bismuth,Selenium,Indium,Gallium.
- Address:12 / F Novel Industrial Building, 850-870 Lai Chi Kok Road
- Hongkong Power-Asia Technology Co.,Limited
- Beryllium copper,Tellurium copper,phosphor bronze,aluminium bronze,nickel silver.
- Address:Tung Choi Street
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