Hiroyuki Hasegawa

Part of HKS Co., Ltd., Nissei Industrial Co., Ltd. is a metal processing manufacturer based in Tokyo, Japan. The Japanese company specializes in prototype metal processing, mainly for automobiles, and support product development with the latest technology. The company has expanded their area to include aerospace-related parts and have been actively promoting industry-academia collaboration initiatives. Nissei Industrial Co. was acquired by HKS Co., Ltd. on May 13, 2000.

Part of HKS Co., Ltd., HKS Aviation Co., Ltd. is a Japanese company that manufactures aircraft engines. The company is based in Fujinomiya, Japan.

HKS (Thailand) Co., Ltd. is engaged in distribution of tuning system products. It provides technical consultation and after-sales service. The company also offers original exhaust systems designed exclusively for Thai domestic market vehicles and Power Writer, which is the software for the diesel engine''s fuel management product known as F-CON iD. HKS (Thailand) was founded in June 2001 and is headquartered in Samut Prakan, Thailand.

Part of HKS Co., Ltd., HKS-IT Co., Ltd. is a Thai company that manufactures motor vehicle parts. The company is based in Samut Prakan, Thailand.

Part of HKS Co., Ltd., HKS Europe Ltd. is a premier manufacturer and supplier of premium automotive performance and motorsport products. The company is based in Huntingdonshire, UK. HKS Intake technology allows users to achieve more power by reducing an airflow restriction in the engine air intake system. The British company carefully designs HKS Intake series for each vehicle, analyzing the engine management systems to achieve the best engine response. HKS has developed a new product, the GT SUPERCHARGER, which has achieved both environmental friendly performance and power. The centrifugal type supercharger cleared the problems of noise and vibration, making it advantageous to the exhaust gas purification. HKS has continued to expand its share in the aftermarket with the performance products of Turbocharger mainly.

HKS SP Ltd. is a British company that distributes motor vehicle parts and accessories.

Part of HKS Co., Ltd., HKS Technical Factory Co., Ltd. provides installation, adjustment, and maintenance of HKS products.