"We bring convenience to our customers lives with advanced technology."

Founded in 1974, we produce hydraulic and pneumatic seals and semiconductor parts and currently employ 310 workers (100 in Korea and 210 at the Gaesung Industrial Complex in North Korea)

SJ Tech Co., Ltd. is a specialized manufacturer of chip trays for semiconductors and seals for hydraulic and pneumatic cylinders, both of which are the key electronic and mechanical components identified in the National Parts and Material Development Road Map. Our customers include Samsung Electronics, Hyundai Heavy Industries, Doosan Infracore, Volvo, Parker, and Festo.

The IT Business Division and SJ RD Center develop and sell solutions for enterprise management and are currently developing the automobile PC. We select technology innovation tasks in conjunction with the government and various academic organization, and implement the associated RD programs.