 He helped solve problems of delays at the Singapore Improvement Trust's Tiong Bahru project caused by a brick shortage by supplying them with 2,000 light cellular concrete blocks.Concrete block terraced houses were built on 25 acres and sold (without sewage) for $6,000 each, and semi-detached houses (with sewage) for $10,000.When the Salvation army approached Koon-Teck for help in building a Home for Boys he turned to Kong-Chian who agreed to give them the other 25 acres.