- RUMION Building Material Co.
- Address:Unit 906, Section C, 9/F, Hop Ming Fty Bldg, 8 On Yip Street, Chai Wan Hong Kong
- Thinkrock Stone Co., Ltd
- Address:Rm504, No.52 Guanri road
- MarGrant Holding Limited
- Address:Unit 905, Workingberg Commercial Building, 41-47 Marble Road, HK
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