 I → IGB Construction Sdn Bhd was incorporated in 1981

J → Jurutama Sdn Bhd was incorporated in 1970 as Soon Tat Construction Sdn Bhd

M → Mudajaya Construction Sdn Bhd was incorporated in 1965 as Chye Hin Construction Co Ltd

The founders of Jurutama and Mudajaya were professionals serving as senior government officials.Despite holding secure positions, their determination to search for that legendary 'pot of gold at the end of the rainbow' led them to break new grounds at a time when hardly any qualified engineer dared venture out as contractor.With them at the helm, they steered Jurutama and Mudajaya through the high risk contracting business.