Daughter of Cao Dewang Names World's First 24,000 TEU Methanol Dual-Fuel Containership
On May 8, the world's first 24,000 TEU methanol dual-fuel containership, built by Nantong COSCO KHI Ship Engineering (NACKS) for Orient Overseas Container Line (OOCL), was officially named OOCL Wisdom in Nantong. The vessel is currently the largest methanol dual-fuel container ship in the world.

Ms. Cao Yanping, Director of Yaohua Industrial Estate Development and daughter of renowned entrepreneur Cao Dewang, performed the ceremonial bottle-breaking as the ship's godmother.

The OOCL Wisdom has an overall length of 399.99 meters, a molded breadth of 61.3 meters, a molded depth of 33.2 meters, a maximum container capacity of 24,168 TEU, a deadweight of 225,000 tonnes, and a service speed of 22.7 knots. Its core breakthrough lies in the world's largest methanol dual-fuel propulsion system, equipped with the largest methanol dual-fuel main engine, auxiliary engines, and boilers, capable of flexibly switching between methanol and conventional fuel. When operating on green methanol, the vessel can reduce CO₂ emissions by approximately 150,000 tonnes per year, virtually eliminate SOx emissions, and significantly reduce NOx emissions, perfectly aligning with the global shipping industry's pressing need for decarbonization. This delivery marks a new milestone for OOCL's fleet in technological innovation and environmental stewardship.
In terms of smart technology, OOCL Wisdom fully meets the highest smart ship and cyber security notations from the American Bureau of Shipping (ABS). It is equipped with an advanced intelligent data platform and energy efficiency management system, enabling real-time ship-to-shore information exchange, automatic optimization of speed and trim, and real-time prediction of hull structural fatigue damage. Smart applications such as wireless reefer container data collection and full-lifecycle structural safety management create an integrated "perception–analysis–decision" smart navigation framework, demonstrating the company's deep capabilities in merging digital technology with lean manufacturing.

To address the specific properties of methanol fuel, the NACKS project team overcame critical challenges relating to fuel tank structural safety and gas dispersion analysis, establishing a comprehensive safety defense system. A fixed CO₂ fire-extinguishing system protecting the cargo holds, combined with high-pressure water cannon systems on deck, forms a multi-layered fire safety network. These physical measures are supplemented by innovative methodologies including quantitative risk assessment and pressurization testing of the methanol fuel system, safeguarding the vessel's ocean-going operations.
As China's first intelligent manufacturing demonstration enterprise in the shipbuilding sector and a nationally designated "green factory," NACKS has achieved a leapfrog evolution in container ship construction from 5,400 TEU to 24,000 TEU since its inception, consistently bridging gaps in the country's high-end ship technology portfolio. The completion of OOCL Wisdom not only breaks technological monopolies in the premium green vessel market but also solidifies China's first-mover advantage in ultra-large containerships and clean-energy tonnage, offering a "Chinese solution" for global shipping decarbonization.
At the naming ceremony, Mr. Tao Weidong, Chief Executive Officer of OOCL, stated that the delivery of OOCL Wisdom would not only expand OOCL's fleet capacity and raise the bar for the company's technological standards but also embody its steadfast commitment to green, low-carbon operations, digital intelligence, and sustainable development.
In recent years, COSCO SHIPPING Holdings has accelerated the development of its green and smart fleet. The company has now ordered a total of 70 dual-fuel containerships, seven of which are already in service, forming a diversified green and low-carbon capacity matrix spanning methanol, LNG, and other new energy fuel pathways. The OOCL Wisdom will soon commence its sea trials and is set to become a mobile beacon for the shipping industry's zero-carbon transition, writing a new chapter in China's shipbuilding industry's progress toward higher-end, innovative, and green development.