Khun Chumpol Na Lamlieng, CEO of Siam Cement Group. at his office at Bangsue. Khun Chumpol was one of the founding fathers of TISCO (Thai Investment & Securities Co.,Ltd.) He was recruited by Bankers Trust from the World Bank in 1968 to help set up the first investment bank in Thailand. Khun Chumpol interviewed me in Washington D.C. and invited me to join TISCO in 1969.