OOCL manages and operates a massive, highly diversified fleet comprising dozens of container vessels, ranging from feeder ships to ultra-large container vessels exceeding 20,000 TEU in carrying capacity. To maintain competitiveness and meet stringent environmental regulations, the company continuously expands its fleet through multi-billion-dollar shipbuilding programs, incorporating advanced eco-friendly vessels, including recent orders for dual-fuel liquefied natural gas container ships. The exact operational count fluctuates dynamically as older tonnage is phased out and newly constructed mega-ships are integrated into scheduled intercontinental service rotations across global trade lanes.