Exhibit 21
Subsidiaries
Details of the Company’s principal subsidiaries as of December 31, 2024 and March 31, 2025 were as follows:
| Name | Place of Incorporation | Principal Activities | ||
| ModuLink Corporation Limited (“MCL”) | Hong Kong | Holding company and provision of intergroup management services | ||
| Zenith Integrated Modular Limited (“ZIML”) | Hong Kong | Provision of construction and engineering services | ||
| Zenith AY Modular Buildings Company Limited (“ZAMBCL”) | Hong Kong | Provision of project management services in overseas | ||
| ModuLink InnoTech Company Limited (“MICL”) | Hong Kong | Provision of technology management services |