KR approves ‘IMO Type-C Tank Design Based on Engineering Critical Assessment’ Jointly Developed by HD Hyundai Mipo and HD KSOE September 11, 2025 International Shipping, Classification Society, Maritime, Ship Building, Shipping Line, Trending News MILAN: KR (Korean Register) has awarded Approval in Principle (AIP) to HD Hyundai Mipo and HD Korea Shipbuilding & Offshore Engineering (HD KSOE) for their IMO Type-C tank design applying Engineering Critical Assessment (ECA).