Changzhou's total foreign trade reached 115.26 billion yuan in the first four months of 2025, marking a 14 percent year-on-year increase, according to local customs data. Private enterprises emerged as the key growth engine, posting a 20 percent surge in imports and exports to 71.87 billion yuan - six percentage points higher than the city's overall growth rate.

At Changzhou Jiulian Battery Materials Co. Ltd., two fully automated production lines were running at full capacity, producing rolls of glass fiber battery separator felts destined for Thailand through standardized processes including pulping, molding, and coating.

"Our production capacity reaches 400,000 square meters daily, commanding over 90 percent of the domestic market share," said workshop director Song Zhennan. The product has become essential for global battery manufacturers due to its low resistivity, minimal metal content, and superior acid and oxidation resistance. Clients include industry leaders such as Daramic (U.S.), Clarios (Germany), and China's Fengfan and Camel.

The new energy vehicle industry's rapid development has spurred demand for high-energy-density batteries, driving market expansion for glass fiber separators. Jiulian's exports of this single product exceeded 40 million yuan in 2023, with 20 million yuan achieved in the first quarter of 2024.

"Four containers carrying 500,000 square meters of products set sail today alone," revealed general manager Zhang Xiaotao. The company now plans strategic expansion into Europe to capture growing battery manufacturing demand.

Changzhou has expanded its international partnerships. Trade with the EU grew 12.2 percent to 21.65 billion yuan, while trade with ASEAN surged 35.8 percent to 20.77 billion yuan. Trade with BRICS members rose 19.7 percent to 19.98 billion yuan, and trade with Africa increased 21.4 percent to 4.14 billion yuan, reflecting successful market diversification.

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