Imabari Shipbuilding has delivered the SG Lagoon, an LNG-fuelled Capesize bulk carrier with a deadweight of 210,141 tonnes, from its Saijo Works facility on December 4.

The vessel, measuring 299.99 metres in length and 50 metres in width, features dual-fuel capability, allowing operation on both heavy oil and LNG. According to the shipbuilder, the design positions the LNG fuel tank on the upper deck aft of the accommodation area, a configuration that preserves cargo capacity comparable to conventional heavy oil-fired vessels.

The ship’s cargo holds incorporate both topside and hopper tanks, enabling the loading of high-density cargoes such as iron ore at up to 3.0 tonnes per cubic metre in separate holds. Additionally, the hull structure has been designed to comply with Common Structural Rules for bulk carriers and oil tankers, supporting both versatility and structural integrity.

Imabari Shipbuilding states that the SG Lagoon meets the Phase 2 and Phase 3 requirements of the Energy Efficiency Design Index (EEDI) even when operating on heavy fuel oil, achieving at least a 30% reduction from baseline levels. Furthermore, switching to LNG can cut CO₂ emissions by approximately 20–30%, the company claims.

The vessel is equipped with a selective catalytic reduction (SCR) system for the main engine to comply with Tier 3 regulations for nitrogen oxide (NOx) emissions. According to the shipbuilder, LNG operation eliminates approximately 100% of sulphur oxide (SOx) emissions.

The ship also features dual-fuel generators and auxiliary boilers designed to utilise boil-off gas (BOG) from the LNG fuel tank. In addition, energy-saving technologies, including propeller optimisation devices, a twisting rudder, a bow form that reduces resistance, streamlined accommodation structures, and low-friction hull coatings, enhance overall propulsion efficiency.

Powered by a 7S60ME-C10.5-GI main engine, the SG Lagoon achieves a sailing speed of about 14 knots. The vessel is classed by Nippon Kaiji Kyokai (NK), registered under the Japanese flag, and has a gross tonnage of 110,690.