Everllence’s Ammonia Engine Completes Factory Acceptance Test in South Korea

Everllence has completed the factory acceptance test of its first ammonia-burning two-stroke engine built by licensee Engine & Machinery of Hyundai Heavy Industries in South Korea, marking a step toward commercial deployment of ammonia-fueled propulsion. The dual-fuel B&W 6G60ME-LGIA engine is slated for installation on a vessel for Singapore-based Eastern Pacific Shipping, currently under construction at HD Hyundai Heavy Industries. The engine is equipped with high-pressure selective catalytic reduction technology.

The milestone also advances EPS’s ammonia program. The very large ammonia carriers under construction are scheduled for first delivery from October 2026 and are expected to be the first vessels equipped with the 6G60ME-LGIA engine, positioning them within the emerging market for low-carbon marine propulsion. A factory acceptance test is a quality assurance process in which newly manufactured equipment is tested to verify performance against specifications before delivery and installation.

“This is a huge milestone that places our ammonia engine on the very brink of its commercial debut,” said Ole Pyndt Hansen, Senior Vice President and Head of Two-Stroke R&D at Everllence. “This engine sets new benchmarks in zero-carbon propulsion and digitally connected performance and has attracted great interest since development began. The speedy execution of this FAT is just the latest step in what we anticipate will be a largely seamless journey from lab to ocean. It stands testament to Everllence’s unique ability to deliver just what the market needs. Bringing new fuels to market is not just innovation – it's imperative for zero-carbon shipping.”

Everllence introduced the ME-LGIA engine in November 2025, building on its dual-fuel liquid gas injection platform. The engine operates on the diesel combustion principle and shares design characteristics with the company’s ME-LGIM and ME-LGIP engines, which run on methanol and liquefied petroleum gas, respectively. It also incorporates additional safety systems tailored to ammonia fuel, including containment measures, sensors, ventilation systems, and double-walled piping.

“The ME-LGIA successfully completed its FAT in all operation modes and we can report that the engine is stable and running very well,” said Christian Ludwig, Vice President and Head of Global Sales and Promotion, Two-Stroke Business, Everllence. “Special thanks go to HHI-EMD for its central role in the production of this engine, and for its stellar collaboration during testing and the FAT itself. This new success comes off the back of an intense testing program stretching back three years where safety has always been the prime consideration. Combined with the knowledge we will gather from a number of other pilot projects we are currently engaged in; we are confident that this will ultimately deliver the gold-standard in ammonia engines.”

The company said the initial commercial release of the ME-LGIA platform will include multiple bore sizes, with retrofit options also planned as part of broader market deployment.

Rebranded Engine

Earlier this week, Everllence produced and shipped its first engine bearing the company’s new branding from its Augsburg, Germany, facility and marked a key milestone in its transition from MAN Energy Solutions following the June 4, 2025, rebrand. The delivery represents the culmination of nearly a year of operational changes across the company’s global manufacturing network, during which all sites produced their first products under the new name.