| Chun Wo Construction and Engineering Company Ltd. |
ISO 9001 : 2015 (Certification No.Q1918) |
| Chun Wo Foundations Ltd. |
ISO 9001 : 2015 (Certification No.Q856) |
| Chun Wo E&M Engineering Ltd. |
ISO 9001 : 2015 (Certification No.Q853) |
| Vasteam Construction Ltd. (Previous as Chun Wo Civil Engineering Ltd.) |
ISO 9001 : 2015 (Certification No.Q1919) |
| Bloom Team Building Construction Co., Ltd. (Previous as Chun Wo Civil Engineering Ltd.) |
ISO 9001 : 2015 (Certification No.Q1921) |
| Core Ltd. (Previous as Chun Long Construction Ltd.) |
ISO 9001 : 2015 (Certification No.Q1920) |
| Chun Wo Building Construction Ltd. |
ISO 9001 : 2015 (Certification No.Q852) |
| Hong Kong OVM Engineering Company Ltd. |
ISO 9001 : 2015 (Certification No.Q859) |
| Chun Wo Elegant Decoration Engineering Co., Ltd. |
ISO 9001 : 2015 (Certification No.Q855) |
| Wing Cheong Electrical Engineering & Contracting Co., Ltd. |
ISO 9001 : 2015 (Certification No.Q860) |
| Chun Wo Railway Engineering Ltd. |
ISO 9001 : 2015 (Certification No.Q1922) |
| Green Solution Interior Design and Decoration Company Ltd. |
ISO 9001 : 2015 (Certification No.Q857) |
