- Business
- Hanwha Engine Co., Ltd. is a South Korea-based company specializing in the design, manufacture, and sale of large marine diesel engines and related engine parts, primarily serving the maritime industry. Its main product portfolio includes low-speed large marine engines, nitrogen oxide (NOx) reduction systems such as selective catalytic reduction (SCR) systems for ships, and advanced alternative fuel propulsion technologies. The company has pioneered the development of the world's first low-temperature SCR system for marine application, enabling compliance with stringent International Maritime Organization (IMO) NOx emissions regulations. It also manufactures high-performance variable compression ratio (VCR) engines for LNG carriers, developed in collaboration with Swiss marine engine company WinGD, which optimize fuel efficiency and reduce emissions significantly. Beyond engines, Hanwha Engine provides comprehensive marine energy and decarbonization solutions, including re-liquefaction systems for boil-off gas using proprietary nitrogen refrigerant technology and air lubrication systems aimed at reducing frictional resistance between ships and water to improve fuel efficiency.
Founded in 1977 and headquartered in Changwon, South Korea, Hanwha Engine operates globally with a focus on markets linked to shipping, shipbuilding, and marine transportation. It is integrated within the broader Hanwha Group, a large South Korean conglomerate.
Recent major developments since 2023 include Hanwha Engine’s integration into the Hanwha Group, which strengthened its strategic positioning in maritime energy solutions. In 2025, the company achieved the first factory acceptance test of the 5X72DF-2.2 X72DF-2.2 VCR engine with variable compression ratio technology for LNG carriers, securing orders worth approximately USD 500 million. This technology innovation aligns with growing environmental sustainability demands and positions Hanwha Engine as a leader in eco-friendly maritime propulsion. Additional notable changes include expanding stable delivery volumes of marine engines and broadening its portfolio of decarbonization retrofit solutions amid shifting global regulations on emissions. Hanwha Engine also secured significant ship engine supply deals, such as a KRW 270.3 billion contract with Hanwha Ocean in late 2025, reinforcing its market presence and operational scale.
The company continues to drive research and development in maritime decarbonization technologies and alternative fuels, aiming to lead maritime propulsion into a net-zero emissions future. Its efforts include advanced LNG-related integrated value chain construction from production to power generation and pioneering zero-emission maritime vessels. These strategic moves enhance Hanwha Engine’s positioning in marine environmental protection and sustainable shipping solutions while sustaining its core business of marine engine manufacturing and sales.