Sales and Head Office:

5/F, 21 Li Yuen Street West,

Central, Hong Kong 

Phone        : +852 25232659

Fax            : +852 28454833

Email        : sales@tetra-intl.com

Enquiry    : marketing@tetra-intl.com




Engineering Office:

Unit B, Room B17, 3/F, Koon Wo Industrial Building,

63 - 75 Ta Chuen Ping Street, Kwai Chung, New Territories

Phone       : +852 3766 9717

Support    : tech-support@tetra-intl.com