About us

On June 14, 1988, MHI-MACO License and Technical Assistance Agreement Signing Ceremony.

"Groundbreaking Ceremony" on October 20, 1988.

Mitsubishi Heavy Industries - Mahajak Air Conditioners Co., Ltd. Photo in 1989.

On December 8,1989, First Mitshubishi Heavy Industries Air - Conditioner was manufactured in Thailand.

MACO - Leading Manufacturer of Air Conditioners

Mitsubishi Heavy Industries - Mahajak Air Conditioners Co., Ltd. or MACO is one of leaders in Thailand's airconditioning industry. The company was established on September 22, 1988 in Lad Krabang Industrial Estate and all under a joint venture between Mitsubishi Heavy Industries, Ltd., Japan, a leading, world-class engineering concern, and Mahajak Group, a successful company with multifaceted business interests in Thailand.

Today, MACO manufactures superior quality air-conditioners with a capacity of more than 30 million units since establishment under the "Mitsubishi Heavy Industries" brand. The company has gained the trust and reliance of its customers for its high-quality products, on-time delivery, reasonable price and environment-friendly technologies.

​Mitsubishi Heavy Industries, Ltd.

In 1884, Mitsubishi Heavy Industries, Ltd. or MHI launched its first shipyard business-the Nagasaki Shipyard & MachineryWorks, under founder Mr.Yataro Iwasaki. Over the past century. MHI has placed great emphasis on research and development to create advanced and innovative technologies, 
propelling MHI to be an internationally recognized leader in the engineering sector.