- Qingdao Opal Industrial Co., Ltd
- Address:Fuzhou North Road, Qingdao, Shandong, China
- Dalianshengshi Chemicals Limited
- Address:industrial park, Changzhou, Jiangsu, China
- Shanxi Qingfeng Grain Trading Cooperative
- Address:Xinzhou , Shanxi, China
- ShenZhen Hengshengtai Import&Export CO., LTD
- Address:Room 601, Qingan Building, Nanhu Road, Shenzhen, Guangdong, China
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