Tianwei Chemical: PVC, Caustic Soda, and Ethanol Production Lines Construct a New Integrated Production Pattern

Tianwei Chemical Co., Ltd., a core wholly-owned production subsidiary of Xinjiang Tianye Co., Ltd. , has officially announced that it has built a synergistic, efficient and low-carbon integrated production pattern with its three core business lines of polyvinyl chloride (PVC), ionic membrane caustic soda and ethanol as the pillars, relying on the complete circular economy industrial chain of Xinjiang Tianye Group. This layout has realized the full-chain linkage of raw material mutual supply, energy cascade utilization and by-product resource recycling, and has become an important support for Xinjiang Tianye to consolidate its leading position in the domestic chlor-alkali chemical industry.

As a national-level green factory and a high-tech enterprise recognized in 2025, Tianwei Chemical is one of the core production bases of Xinjiang Tianye's chlor-alkali sector, with an annual production capacity of 200,000 tons of special PVC resin and 150,000 tons of ionic membrane caustic soda. It undertakes the production of general-purpose PVC, high-end special resin and core chlor-alkali products for the group, and forms a complementary production layout with Tianchen Chemical and Tianneng Chemical, the other core subsidiaries of Xinjiang Tianye. Meanwhile, it deeply links with the group's 250,000 tons/year anhydrous ethanol production capacity, breaking the single development boundary of the traditional chlor-alkali industry, and building a dual-wheel drive integrated development system of chlor-alkali chemical industry and coal chemical fine processing.

The core advantage of the new integrated production pattern lies in the full-cycle collaborative efficiency of the industrial chain. Relying on Xinjiang Tianye's complete "self-provided power → calcium carbide → PVC resin and by-products → cement made from calcium carbide slag and other wastes" circular economy industrial chain, Tianwei Chemical has realized the closed-loop utilization of resources among the three production lines. The by-products such as steam and chlorine from the caustic soda production line directly supply the PVC polymerization process, the self-provided power system ensures the stable energy supply of the whole plant, and the upstream raw material guarantee of the group's calcium carbide and coal chemical sector provides stable support for the ethanol production line. This model not only reduces the comprehensive production cost by more than 10% compared with the industry average, but also makes the unit product comprehensive energy consumption of PVC and caustic soda reach the national energy efficiency benchmark level, and the first-grade product rate of 25 grades of PVC resin has maintained 100% for a long time.

In terms of technological innovation and quality control, Tianwei Chemical has accumulated 40 authorized patents (including 8 invention patents and 32 utility model patents), and has built a professional R&D platform for paste resin quality improvement. The number of its PVC product categories has expanded from 8 to 32, and the high-polymerization degree PVC resin TYH-1800 has achieved mass production, which can meet the customized needs of high-end downstream fields such as medical consumables, food-grade packaging, automotive interior parts and new energy materials. At the same time, the company has built a 24-hour full-process quality monitoring system, and all production links strictly comply with national and industry standards, which has laid a solid quality foundation for the integrated operation of the three product lines.

Against the background of the steady recovery of China's manufacturing industry and the continuous release of demand for bulk chemical raw materials, the integrated production pattern of Tianwei Chemical has shown strong market competitiveness and anti-risk ability. The company's three core product lines can fully cover the rigid needs of downstream industries such as construction and building materials, water treatment, packaging, textile printing and dyeing, daily chemicals, pharmaceutical intermediates and new energy. Relying on Xinjiang Tianye's well-known "Yaxi" brand in the industry, the company has built a nationwide domestic trade sales and service network covering East China, South China, North China and other key industrial clusters, and has established long-term and stable cooperative relations with a large number of high-quality downstream customers. The coordinated supply of multiple products has greatly improved the one-stop service capability for customers, and the market share of its core products has maintained steady growth in the domestic market.

The relevant person in charge of Tianwei Chemical said that the integrated production pattern built by the three core lines of PVC, caustic soda and ethanol is not only a key practice for the company to implement Xinjiang Tianye's high-quality development strategy, but also an important exploration for the transformation and upgrading of the domestic chlor-alkali industry. In the next step, the company will continue to focus on the main chemical business, strictly adhere to the bottom line of safety and environmental protection, continue to increase R&D investment in high-end and customized products, accelerate the intelligent and green transformation of production lines, and continuously optimize the synergistic efficiency of the integrated industrial chain. While further consolidating its competitive advantage in the domestic market, it will help stabilize and strengthen the domestic chemical industry chain and supply chain, and promote the high-end, green and low-carbon development of the domestic chlor-alkali chemical industry.