The Hamburg-based carrier will share the tender with feeder carrier North Sea Container Line that will operate e-ammonia services on a northern intra-Europe trade lane.
But a spokesperson for ONE would not be drawn on whether the agreement was a precursor to the carrier relaunching its own services through the Red Sea and Suez Canal.
Unless shipowners significantly postpone or cancel orders, the wallops of new tonnage added in 2027 and 2028 will dwarf the deliveries made this year and next.