Merthyr Tydfil TRILITHON Merthyr Tydfil · CF47 9AS Claim this listing Feature Registered office 17 MAPLE CLOSE, Merthyr Tydfil, CF47 9AS Companies House registered office — often an accountant, not the shop floor. Website Not listed. Add a website Company number 16840928 Legal name: TRILITHON LTD SIC 70229, 71122