Certificate of Design registration
Boiler tube protective cover for thermal power plants

Patent certificate
Boiler tube protector

letter of recognition for the department exclusively responsible for research and development

Certificate of Family Friendly Enterprises

Certificate of Quality Management System
ISO 9001

Certificate of Environmental Management System
ISO 14001

Certificate of Safety and Health Management System
ISO 45001

Partner registration card
Doosan Heavy Industries & Construction Co.

Partner registration card
Korean electric power corporationKPS

Partner registration card
Susan Industries Co., Ltd.

Engineering Operator's Certificate

Factory Registration Card - Seo Gimhae