- Shenzhen Union Timmy Technology Co.,Ltd
- Address:3rd Floor, Building A5, Valley Power Qinghu Park, Dahe Road, Qinghu Community, Longhua District Shenzhen, Guangdong
- Guangzhou Huayu Hardware Products Co., Ltd.
- Address:Rm.402, Building E, Poly World Trade Center, NO.1000 Xingang East Road, Haizhu District
- ASSA ABLOY Guoqiang (Shandong) Hardware Technology Co., Ltd.
- Address:518 Tingjin Road, Leling, Shandong Prov., China