- Shandong Huanfeng Food Co., Ltd.
- Address:Kangcheng Street, Chaoyang District
- Shandong Hengfeng Flour Co., Ltd.
- Address:Kangcheng Street, Chaoyang District
- Qingdao Singsino Group Limited
- Address:Rm. 1902, Unit 2, Guohua Tower, No. 2, Minjiang Rd.
- Qingdao Goworld Technology Co., Ltd.
- Address:20th Floor, No. 1 building, 153 Zhuzhou Road, Laoshan District
- Rugao Wanli Chemical Industry Co., Ltd.
- Address:NO.263,Dingxin Rd, Dingyan Town,RuGao City,Jiansu Province,China
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