Acma Ltd., an investment holding company, engages in the distribution of air conditioning and ventilation systems in Singapore, Europe, rest of Asia, North America, and internationally. It operates through Communications, Electronics and Equipment Distribution; and Investment segments. The company is involved in the sale, maintenance, and rental of communication equipment, computer equipment, peripherals, and other office and industrial equipment and supplies; distribution of air-conditioner packaged and multi-split units; and supply of microwave tele-communications systems and electronic/computer related products, as well as supplies telecommunications and electronic products. The company was formerly known as China Auto Corporation Ltd.