Based on the draft TOR, the private sector would invest about Bt120 billion in the infrastructure and the government would share the cost of the Bt220-billion project which would connect Don Mueang, Suvarnabhumi and U-Tapao international airports, he said. In the future, if the private sector generated higher-than-expected income from the high-speed train, Airport Rail Link and transit-oriented developments, it would be required to share profits with the government, he said. Minor TOR issues, such as guarantees for decision-making, remained to be agreed, he said.