- Qingdao Zhong Ya Jia Hao International Trade Co.,LTD
- Address:Qingdao Anshan 1 Road Huang Jian Sui yue Qingdao, Shandong
- Metro Products Mfg. Ltd.
- Address:Cheong K Comm Bldg., Central Hong Kong Hong Kong
- Zhang's Technologies Limited
- Address:Sha Mei Steet N.T. N.T. Hong Kong
- Metro Mold
- Address:Cheong K comm bldg., Central HK Hong Kong
- Lightide Industrial Co., Limited
- Address:4# Building, Guanglan High Tech Industrial Park, Shenzhen Guangdong 518038 Hong Kong
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