GUSAN

Quality system certification

• Certification standard : ISO 9001:2015
• Certification scope : "Construction of earth works and reinforced concrete, boring grouting, paving, scaffolding and demolition of structure, plaster, waterproof, brick, water supply and drainage facilities, metal structure, windows and doors, civil, building, housing, overseas construction works"

Safety Management System Certification

• Certification standard : ISO 45001:2018
• Certification scope : "Construction of earth works and reinforced concrete, boring grouting, paving, scaffolding and demolition of structure, plaster, waterproof, brick, water supply and drainage facilities, metal structure, windows and doors, civil, building, housing, overseas construction works"

Environmental Management System Certification

• Certification standard : ISO 14001:2015
• Certification scope : "Construction of earth works and reinforced concrete, boring grouting, paving, scaffolding and demolition of structure, plaster, waterproof, brick, water supply and drainage facilities, metal structure, windows and doors, civil, building, housing, overseas construction works"