Acter Group Corp. Ltd. engages in the provision of construction, design, and maintenance services related to air conditioners, environmental control services, clean room set-up, ice water machine trading, energy storing equipment trading, ventilation engineering, and energy technology services. It operates through the following segments: Taiwan, Mainland China, and Other Asian countries. The Taiwan segment is involved in the engineering, maintenance, sales, and other services. The Mainland China segment focuses on the engineering services and sales in Mainland China. The Other Asian segment refers to the engineering services in Vietnam, Singapore, Malaysia, and Other Asian countries. The company was founded on February 19, 1979 and is headquartered in Taichung, Taiwan.