The Jiangsu coastal natural gas pipeline, designed with an annual transmission capacity of 28 billion cubic meters, is set to be fully operational by the end of this year, with over 500 kilometers already constructed. Upon completion, the total length of pipelines operated by Jiangsu Guoxin Group, the province's largest state-owned energy enterprise, will exceed 1,000 kilometers, connecting with the national pipeline network and multiple gas storage facilities to bolster green energy development in the Yangtze River Delta region.
Along Jiangsu’s coastline, a critical underground energy artery is rapidly taking shape. In June, the Huai'an-Jianhu-Yancheng section and its supporting gas storage branch were successfully commissioned. Spanning 150 kilometers, this segment includes four stations and five valve chambers, linking key peak-shaving facilities such as Jiangsu Guoneng Zhangxing Gas Storage and Sinopec’s Zhujiadun Gas Storage, while integrating with the national pipeline network’s Sino-Russian Eastern Route Yancheng Station and Qingning Pipeline’s Huai'an Station.
In December last year, Jiangsu’s coastal pipeline achieved its first interconnection with the national Sino-Russian Eastern Route, laying the groundwork for a unified national gas supply network. In February, Guoxin Group signed a cooperation agreement with China Oil & Gas Pipeline Network Corporation (PipeChina) to deepen integration between provincial and national infrastructure through physical, commercial, and operational coordination. Currently, the Yancheng interconnection line is operational, the Huai'an line is expected to open by mid-December, and the Nantong line has received approval. This collaborative framework enhances gas resource allocation efficiency and supports lower end-user costs.
To date, the Jiangsu coastal pipeline has approved over 500 kilometers, with approximately 446 kilometers already built. By year-end, Guoxin’s operational pipelines in southern Jiangsu and trial-operation sections in central and northern Jiangsu will surpass 1,000 kilometers, significantly strengthening the province’s gas supply security and advancing regional green development.
As the 14th Five-Year Plan concludes, Guoxin Group is accelerating its transition into a full natural gas industrial chain, spanning trading, transmission, storage, and utilization. In Nantong’s Rudong Yangkou Port, construction is underway for the Guoxin LNG receiving terminal, dubbed the "offshore energy hub," with completion targeted by year-end. The 7.7-billion-yuan project includes four 200,000-cubic-meter LNG storage tanks and a dedicated terminal, providing 800,000 cubic meters of total storage capacity—enough to meet three days of emergency demand—marking Jiangsu’s first independently invested large-scale storage and peak-shaving facility.
To diversify gas sources, Guoxin has invested in projects like PetroChina’s Rudong LNG terminal, aiming to integrate with southern Jiangsu’s pipeline network and gas-fired power plants for a more robust gas industry system. The group is actively building a diversified energy portfolio encompassing wind, solar, hydro, thermal, gas, and storage, with gas supply expected to account for 15% of Jiangsu’s total, matching its power supply scale.
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