共有 7 間公司以「香港 鰂魚涌英皇道1001號22樓」為註冊辦事處。以下為詳細名單。
7 間公司
Stone International Holdings Limited
HONG KONG YOUTH ORCHESTRA LIMITED
MAESTRO ART MUSIC EDUCATION LIMITED
MAESTRO INTERNATIONAL HOLDINGS GROUP LIMITED
MAESTRO ART MUSIC INTERNATIONAL EDUCATION GROUP LIMITED
HONG KONG ORCHESTRA LIMITED
Fly High Development Limited