“I want the prime minister to instruct relevant agencies to check into graft violations,” he said.
Prompong said the irregularities happened in connection with the economic revitalisation projects launched in 2009.
Projects plagued by corruption included the Bt5.3 billion procurement supervised by the Office of Vocational Education Commission, he said.
He urged for the Department of Special Investigation, the Public Sector Anti Corruption Commission and the Anti Money Laundering Office to work in concerted efforts to root out corruption.