Oriental Heat Treatment (M) Sdn. Bhd. was incorporated in 1996. Initially, this joint-venture company was a strategic alliance between Kumpulan Belton Berhad and Oriental Engineering Co. LTD (Japan).

In April 2008, Usnalanti Sdn. Bhd. bought all the shares which was held by Kumpulan Belton Berhad. Subsequently, it has announced itself as the major shareholder of this company. Following with the takeover, the corporate identity of the company has been changed and known as Oriental Heat Treatment ® (M) Sdn. Bhd. with effective on 10th April 2008.

The status of another shareholder, Oriental Engineering Co. Ltd., remains unchanged. Oriental Engineering Co. Ltd. was founded in August 1952 as an agent of heat treatment machine and gradually, it has established itself as a famous heat treater in Japan. The company has worked closely with Metal Technology Classroom, Tokyo University of Technology. They have supplied to Nissan Motor Co., Hitachi Construction Machinary Co., and Japan Steel Works Co. They also provide heat treatment services to Japan Tobacco Inc.