ATAL Engineering Limited
Bun Kee (International) Limited
BYME Engineering (Hong Kong) Limited
CYH
Fook Loong (HK) Limited
Fortune Links Hong Kong Limited
J&J Network Engineering Co. Ltd.
Kembla (Hong Kong) Limited
Link The Best Company Limited
Lucky Engineering Co. Ltd.

Midea Electric (Hong Kong) Limited
Oxprime (International) Limited
Southa Technical Limited
Superpower Pumping Engineering Company Limited
The Hong Kong & China Gas Company Limited
Trane Hong Kong
Victaulic
Winston Air Conditioning & Engineering (Hong Kong) Company Limited
Zenith International Enterprise Limited