Wärtsilä will supply a Wärtsilä 25 Ammonia auxiliary engine, selective catalytic reduction (SCR) system, and gas valve unit (GVU) for two 51,350 m3 midsize LPG/liquid ammonia carriers being built at Nantong CIMC Sinopacific Offshore & Engineering shipyard in Shanghai for Navigator Amon Shipping AS, a joint venture between Navigator Gas and Norway-based Amon Maritime. The propulsion package also includes a Controllable Pitch Propeller; the engine order was booked in Q2 2026, the propeller system in Q3 2026, and the Wärtsilä equipment will be delivered to the yard starting June 2027.