- KT Group Limited
- Address:Unit A 10F Seapower Industrial Center 177 Hoi Bun Road Kwun Tong Kowloon
- SD-Omega (HongKong) Company Limited
- Address:Unit 24, 1/F, Shing Yip Industrial Building, No. 19-21, Shing Yip Street, Kwun Tong,
- AMARANTO ASIA LIMITED
- Address:Unit A2, 22/F, OfficePlusMong Kok, No.998, Canton Road
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