China Delivers First LNG Carrier with Domestic Valves

China has delivered its most advanced large liquefied natural gas (LNG) carrier to date — the first to be fitted with a fully domestic set of ultra-low-temperature valves in its cargo containment system, marking a strategic leap in the country’s shipbuilding capabilities and energy supply chain autonomy. The 174,000-cubic-meter vessel, named Puteri Johor, was handed over on May 29 by Hudong-Zhonghua Shipbuilding, a subsidiary of China State Shipbuilding Corporation (CSSC), according to CCTV News.

A Milestone in Localization

The delivery represents the culmination of more than a decade of research and development aimed at breaking foreign dominance over critical components in LNG carrier construction. When China built its first domestically assembled large LNG carrier, the Dapeng Hao, in 2008, less than 30 percent of the vessel’s components were domestically sourced. Today, the overall localization rate has climbed to 80 percent, and the cargo containment system — the most technically challenging subsystem — has achieved 100 percent domestic supporting capability, as reported by CGTN.

The critical breakthrough lies in the ultra-low-temperature valves, which control the loading and unloading of LNG stored at minus 163 degrees Celsius. A single large LNG carrier requires more than 1,000 such valves, each engineered to withstand extreme cold, repeated thermal cycling, and high-pressure operation over a 40-year service life. For the first time, all nine major valve series have been produced and installed using entirely domestic supply chains, resolving what industry observers have long described as a “bottleneck” (卡脖子) constraint.

“We have achieved full coverage of low-temperature valves across nine major LNG carrier valve series for actual ship installation,” said Wu An, chief designer at Hudong-Zhonghua, in an interview with CCTV. “Our supply chain is independently controllable, with core components in our own hands.”

Vessel Specifications and Performance

The Puteri Johor measures 299 meters in length and 46.4 meters in width, with a deck area equivalent to three standard football fields. Its four liquid cargo tanks can carry 174,000 cubic meters of LNG — enough, when regasified, to meet the monthly gas needs of approximately 3.3 million households, according to Global Times.

Built on Hudong-Zhonghua’s fifth-generation “Changheng Series” design, the vessel incorporates advanced hydrodynamic optimization and a dual-fuel low-speed propulsion system. The performance gains are significant: daily carbon emissions have been reduced by approximately 10 tons, fuel and gas consumption have dropped by 10 percent, and the loading rate has improved from 98 percent to 98.5 percent.

Wu An emphasized the practical impact of that half-percentage-point improvement: “Don’t underestimate this 0.5 percent improvement in carrying capacity. It equates to transporting nearly 900 cubic meters (500 tons) more LNG per voyage, further reducing transportation costs.”

The vessel also features a lightweight design that reduced empty ship weight by 1,500 tons, and its daily LNG evaporation rate stands at 0.085 percent — a globally leading figure that minimizes cargo loss during transit.

From One Ship in Three Years to Eleven Per Year

Perhaps the most striking transformation has been in production efficiency. The construction cycle for a large LNG carrier has been slashed from 40 months to just 16 months, while annual output has surged from one ship every three years to 11 deliveries per year. This leap has been enabled by the formation of a comprehensive industrial cluster centered on Shanghai’s Changxing Island, supported by more than 130 upstream and downstream enterprises across the Yangtze River Delta region, forming a 100-billion-yuan ($13.8 billion) industry alliance.

Hudong-Zhonghua’s order book now stands at nearly 60 vessels, with production slots filled through 2030. The yard secured 24 units of 271,000-cubic-meter LNG carriers under Qatar’s “100 Ships Plan” — the largest single contract by both value and cargo capacity in the global LNG shipping industry. In January 2026, the company also signed a “4+2” contract for 174,000-cubic-meter LNG carriers with a Greek shipowner, marking its first entry into the European market.

“The construction cycle shortening means we can deliver ships earlier and take more orders,” Wu An told CCTV. “Shipowners have given positive feedback during use, and we are continuously updating our construction techniques and raising our building standards. It’s a win-win situation.”

Strategic Implications for Global Shipbuilding

China’s rapid ascent in LNG carrier construction directly challenges the traditional dominance of South Korean shipbuilders — Hyundai Heavy Industries, Daewoo Shipbuilding & Marine Engineering, and Samsung Heavy Industries — which have long held the largest share of the high-end LNG carrier market. According to Li Yanqing, vice president of the China Association of the National Shipbuilding Industry, the strong order growth reflects growing global confidence in Chinese shipbuilders’ stability and reliability, particularly valuable in a volatile market environment.

In the first quarter of 2026, China ranked first globally in completed shipbuilding output, new orders, and orders on hand, with new orders nearly tripling year-on-year, as reported by the Ministry of Industry and Information Technology.

What’s Next

The Puteri Johor will enter service on the Malaysia-to-China route, reflecting the growing LNG trade between the world’s largest LNG importer and one of its largest exporters. Wu An noted that the vessel’s advanced containment system enables it to cover over 90 percent of global routes and reach more than 120 ports worldwide, underscoring its versatility.

Looking ahead, the completion of a fully domestic supply chain positions China not only as a manufacturer of LNG carriers but potentially as an exporter of related technologies. With production capacity continuing to expand and costs declining through scale and learning effects, Chinese shipbuilders are poised to capture an increasing share of the global LNG carrier market — a segment long considered the “crown jewel” of the shipbuilding industry.

As Wu An put it: “Its seaworthiness is very strong. Using the most advanced containment system, it can cover over 90 percent of global routes. Its port adaptability is excellent, reaching over 120 ports worldwide.”