Manufactured and supplied dynamometers other than Green Power House Co.

Manufactured and supplied dynamometers for Doosan Infracore Co.

Manufactured and supplied a large dynamometer for ship engines of Hyundai Heavy Industries Co.

Manufactured and supplied a large dynamometer for gas turbines of Doosan Heavy Industries Co.

Company name changed to "DY GreenSS"

Established "JS Tech" as a subsidiary

Entered the business of DH Beam

Entered the business of DH Beam

Yonghyun BM company registration and GMS main shaft development, mass production

S&T Daewoo automobile shock bar development

Pyeongsan Main shaft development, mass production

Certificated from GE Co.

Entered the business in the dynamometer sector

Main Shaft development and mass production for wind power generation

"GreenSS" company established