- Chama Enterprises Co., Ltd.
- Address:119, 4F, Chung Hsing Rd., Hsichih, New Taipei City, Taiwan 22158 Taiwan
- Epsilon Metals Co., Ltd.
- Address:7F, No. 1509-1, Yu Chen Road
- Advenced material specialty Inc
- Address:No. 18, Kegong 2nd Rd. ,
- King Brass Precision Tech.
- Address:no. 45, lane 172, changtsao rd. , sec. 3, homeu town
- Meng Sin Material Co., Ltd
- Address:Wenbin Road
- SY
- Address:XinHai Road
- YUH FIELD INDUSTRY CO., LTD.
- Address:No.12, Ln. 715, Dongping Rd., Taiping Dist.
- RYH HSIANG CO., LTD.
- Address:No. 61-1 Chiu Tso Liao. Chiu Lung Tsuen Lung Tan Shiang
- Chiao Tai Aluminum Industry Co., Ltd.
- Address:No. 32, 671 Lane, An Chao Rd.
- EVEREST INDUSTRIAL CO., INC.
- Address:NO.669, Keng Tze Kou, Fengkeng Tsun, Hsinfeng Hsiane, Hsinchu, Taiwan
- AMSpec - Advanced Material Specialty Inc.
- Address:no.18 Kegong 2nd RD.