Caustic soda (sodium hydroxide, NaOH) is one of China’s most fundamental bulk chemicals, widely consumed across alumina processing, pulp & paper, textile dyeing, water treatment, petrochemicals and food‑processing industries. China holds the world’s largest caustic soda production capacity, with most large‑scale producers adopting ion‑exchange membrane electrolysis technology. Among domestic key players, Xinjiang Zhongtai Chemical Co., Ltd., Xinjiang Tianye Co., Ltd. and Binhua Group Co., Ltd. stand out for their scale, integrated industrial chains and export presence. This article presents factual profiles of these three major manufacturers.
Xinjiang Zhongtai Chemical Co., Ltd. (stock code: 002092), listed on Shenzhen Stock Exchange in 2006, is a leading chlor‑alkali enterprise based in Xinjiang Uygur Autonomous Region. Supported by local coal and power resources, the company runs a large circular‑economy industrial park complex.
Its core product portfolio covers ion‑exchange membrane caustic soda, PVC resin, viscose fiber and viscose yarn. Published corporate data shows its designed ion‑membrane caustic soda capacity reaches 1.86 million metric tons per year, making it one of China’s top caustic soda producers by capacity. It supplies solid caustic soda (flake form) and multiple grades of liquid caustic soda.
Benefiting from captive power plants and raw‑material advantages in northwest China, Zhongtai Chemical maintains relatively competitive production costs for chlor‑alkali products. Its caustic soda and PVC products serve domestic downstream industries and are exported to Central Asia, South Asia, South America and Africa. The company keeps focusing on operational optimization and overseas market expansion alongside its chlor‑alkali and textile dual main businesses.
Xinjiang Tianye Co., Ltd. (stock code: 600075) is a major state‑backed chlor‑alkali manufacturer located in Shihezi, Xinjiang, under Tianye Group. It builds a complete coal‑calcium carbide‑PVC‑cement circular economy industrial chain, a typical feature of northwest China’s chlor‑alkali sector.
The company produces diversified caustic soda grades: industrial‑grade, chemical‑fiber‑grade, high‑purity and food‑additive sodium hydroxide, available in both solid (flake, pearl) and liquid specifications(.... Its annual caustic soda production capacity stands at approximately 970,000 metric tons per year, paired with sizable PVC resin capacity.
Leveraging local coal and power resources, Xinjiang Tianye improves cost control through industrial integration. Apart from bulk industrial caustic soda, it develops high‑purity caustic soda products targeting advanced manufacturing and new‑energy‑related downstream segments. Its chemical products are circulated across domestic markets and shipped to international markets via northwest China’s export corridors.
Binhua Group Co., Ltd. (stock code: 601678), headquartered in Binzhou, Shandong Province, represents a key coastal chlor‑alkali manufacturer in eastern China. Different from northwest resource‑based players, Binhua sits close to major downstream consumption markets in East China.
Total caustic soda capacity of Binhua Group hits 610,000 metric tons per year. It is widely recognized as China’s largest producer of granular caustic soda, with prominent capacity for both granular and flake caustic soda, covering industrial‑grade and food‑grade specifications. Its product range includes 32% and 50% liquid caustic soda, 98.5% flake caustic soda and 99% granular caustic soda, meeting requirements from fine chemical, food processing, water treatment and metallurgy sectors.
Binhua operates supporting salt‑making facilities and self‑supplied power units, supporting stable caustic soda output. It also develops propylene oxide and other C3‑C4 new‑material businesses alongside its chlor‑alkali base. Geographical proximity to eastern‑China consumption hubs enables short lead times for domestic spot deliveries, and its food‑grade and high‑purity caustic soda have established certain market recognition in export trade.
These three manufacturers represent two typical development models for China’s caustic soda industry. Zhongtai and Tianye take advantage of low‑cost coal and power resources in Northwest China for large‑volume bulk production. Binhua, located in Shandong, focuses on high‑value‑added solid‑caustic‑soda grades and serves nearby high‑demand downstream markets.
China’s caustic soda market faces periodic supply‑demand swings. Actual output, operating rates and export volumes vary according to plant maintenance cycles, downstream demand from alumina and new‑energy industries, and international trade conditions. Buyers should verify real‑time product specifications, spot availability and quotation directly with manufacturers or authorized distributors.
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