Kromadit began investing in his Amata industrial estates at the end of the 1980s, just as foreign investors, including Taiwan companies, started to pour money into Thailand to develop the electronics and auto industries there. Major electronics firms from around the world came to invest one after another. Industrial parks were growing by leaps and bounds, and he was constantly buying land to expand.
邱威功投資工業區的 1980 年代末期，正逢泰國大力吸引外資，發展電子業、汽車業，包括台商在內，全球電子大廠均前仆後繼地前往投資，工業區發展迅猛，他也不斷購買土地擴張規模。