At his zenith, he not only owned more than ten thousand acres of rubber tree plantation, but also used his rubber to manufacture such goods as raincoats, galoshes and tires. He also opened a chain of more than 80 retail stores spread throughout all the major cities of Southeast Asia.
全盛時期，他不僅擁有一萬多英畝的橡膠園，還將橡膠加工，製成雨衣、雨鞋、輪胎等等用品，更開了八十多家分店，遍佈東南亞各大城市。