- Elite Castle Limited
- Address:Unit 1610 Wellbourne Center,8 Java Road, North Point, Hong Kong, China, Hong Kong
- Soyo Optical Security Co., Ltd
- Address:#9 Yinchong Str., Kowloon, HK, Hong Kong
- Bavono Security Group Limited
- Address:Unit D, 4/F, 221 Wai Yip Street, Mai Tak Industrial Building, Kwun Tong, Kowloon, Guangdong, Hong Kong
1