Mr Chai is Executive Chairman and Managing Director of DPI Holdings Berhad, a limited company in Malaysia. DPI is primarily involved in the manufacturing and distribution of aerosol products for the automotive, industrial and household markets. Besides DPI, he also has various other business ventures in countries such as Singapore, Malaysia, Australia and Hong Kong. These business ventures are primarily involved in providing surface finishing services, plastic injections and blow molding as well as real estate development, construction and investment.