Established in 1981 TTJ Design & Engineering is one of the largest structural steel fabricators in Singapore.

TTJ is a leading structural steel specialist in Singapore. Our factories are specially designed around an in-line production concept based on Computerised Numerically Controlled (CNC) machinery. In addition, TTJ’s Singapore factory in Pioneer Road has a waterfront loading area which enables the loading of heavy materials and large assemblies onto barges for transport by sea. 

As a testament to our commitment to Quality, Environmental, Occupational Health and Safety management systems, we have been awarded ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018. We are a certified manufacturer of structural steel works to SS EN 1090-1:2018 with execution class EXC 4, and also an accredited structural steel fabricator with the highest S1 category by the Singapore Structural Steel Society. TTJ has a combined annual production capacity of 42,000 tonnes for normal structural steel at its two fabrication facilities in Singapore and Johor, Malaysia.

TTJ’s structural steel solutions are used in a wide array of industries ranging from high rise building, offshore marine, oil and gas to industrial plants as well as in iconic landmarks such as the National Art Gallery, the Orchard Gateway bridge, the SuperTrees and OCBC Skyway at Gardens by the Bay, The Helix at Marina Bay, Pinnacle@Duxton, Henderson Waves, the Supreme Court and Changi Airport Terminals 2 and 3, Sentosa Sensoryscape, Bahrain World Trade Centre Twin Towers and the Burj Dubai Development Plot 12 & 13. 

TTJ’s comprehensive manufacturing capabilities include heavy lifting cranes, ship-lift platforms, steel structures for high rise buildings, petrochemical complexes, semiconductor plants and power plants, heavy roof trusses, civil defence shelter doors, steel moulds and launching girders for bridges and highways, pressurised vessels and tanks, vehicular aluminium parapets, expansion joints and bearings for highways and roads.