Daisho Microline Holdings Limited, an investment holding company, engages in the manufacture and trading of printed circuit boards in Hong Kong, Europe, the People's Republic of China, South Korea, North America, and internationally. It is also involved in trading of petroleum and energy products, and related business; manufacture and trading of printing and packaging products; and investment in funds. The company was incorporated in 1990 and is headquartered in Chai Wan, Hong Kong.