China has launched sea trials of the world’s largest methanol dual-fuel container ship, taking another big step toward cleaner cargo transport. The ship left Nantong in Jiangsu Province, East China, on Thursday, according to China’s state-run Xinhua News Agency.

Built by Nantong COSCO KHI Ship Engineering Co, the vessel is designed to carry 24,168 standard containers. This makes it the largest ship of its type in service. The project also shows China’s increasing leadership in green shipbuilding as more countries look for cleaner maritime technology.

Massive vessel built for cleaner shipping

The new container ship was designed and built in China. It is almost 1,312 feet (399.99 meters) long, about 201 feet (61.3 meters) wide, and around 109 feet (33.2 meters) deep.

The ship has a deadweight tonnage of 225,000 tons and is the largest methanol dual-fuel container ship in the world. Ships like this can run on either regular marine fuel or methanol, giving operators more options and helping lower emissions.

Zhang Haidong, a company representative, explained the technological significance of the vessel. “The ship’s core breakthrough lies in its integration of the world’s largest methanol dual-fuel main engine, auxiliary engines and boiler system, enabling flexible switching between methanol and conventional fuel modes,” Zhang said, according to Xinhua.

The ship’s design allows it to use green methanol as fuel, which many now see as a cleaner choice for shipping. Experts think methanol could help cargo fleets meet future international emissions standards.

Green methanol could sharply cut emissions

According to Zhang, operating the vessel on green methanol could significantly lower environmental pollution from international shipping. “When powered by green methanol, a single ship can reduce carbon dioxide emissions by about 150,000 tons annually, while nearly eliminating sulfur oxide emissions and significantly cutting nitrogen oxide emissions, in line with the global shipping industry’s decarbonization goals,” Zhang added.

The shipping industry faces increasing pressure to cut greenhouse gas emissions. The International Maritime Organization wants the sector to reach net-zero emissions by around 2050.

Chinese experts say stricter international regulations are accelerating the adoption of cleaner ship technologies. Wang Zhe, a professor at Beijing Normal University, said new environmental rules in Europe are also pushing shipbuilders toward alternative fuels, including methanol, LNG, ammonia, and electric propulsion systems.

After sea trials are complete, the ship is expected to begin operating on international trade routes.

China expands dominance in green shipbuilding

China’s shipbuilding industry has continued to grow rapidly in 2026, especially in the green vessel market. Official data from the Ministry of Industry and Information Technology showed that shipbuilding reached 15.68 million deadweight tons in the first quarter, up 46 percent from last year.

Green ships made up 80.2 percent of China’s new international shipbuilding orders during that time. These included ships powered by LNG (liquefied natural gas), liquefied petroleum gas, methanol, ethane, and electric systems.

Green ships are built to use fuel more efficiently and cut pollution by using advanced engines and cleaner energy sources. Wang Peng, an associate research fellow at the Beijing Academy of Social Sciences, said Chinese shipbuilders are gaining from the global move toward cleaner shipping.

Wang Peng also said that China’s affordable and advanced green ships offer a “Chinese solution” to help the IMO reach its decarbonization goals. These ships provide important technology that helps the global shipping industry reduce pollution and greenhouse gas emissions.

He added that China’s rapid progress in green shipbuilding is also strengthening the country’s supply chain, especially in clean-energy engines and new shipbuilding materials.