The Cold Cycle: PVC Market’s Chill and Faint Light Ahead

As the calendar turns to October, China’s PVC market enters the final stretch of 2025 under a chill of weak fundamentals and fading expectations. The third quarter was a classic roller coaster: prices surged on policy optimism, only to fall back under the weight of oversupply and sluggish demand.

In July, PVC futures jumped from around RMB 4,600 per ton to RMB 5,500 per ton as energy policies and coal rebounds fueled speculative enthusiasm. Spot markets followed, with East China’s carbide-based SG5 rising from RMB 4,740 to 5,180 per ton—an 8.9% increase. Yet this rally was built on expectations rather than reality. By mid-August, new production from Wanhua Chemical and Tianjin Bohua—totaling roughly 1.4 million tons of annual capacity—entered the market, while India’s anti-dumping duties hit exports and the real-estate-driven domestic demand slumped. The result: sixteen straight weeks of inventory build-up, reaching over one million tons by early October, and prices sliding back to RMB 4,640 per ton—barely above 2018 lows. A short-lived rebound in late September, spurred by macro policy sentiment and cost stabilization, quickly faded.

Supply remains the dominant weight. China’s 2025 PVC expansion plan totals 2.5 million tons, a 9.1% capacity increase. As of September, 2.2 million tons were already online, and plants from Wanhua (500 kt) and Tianjin Bohua (400 kt) will run at full capacity through Q4, while Jiahua Energy’s 300 kt unit is expected to start by year-end. Even considering planned maintenance at Inner Mongolia Junzheng (2.29 Mt), the net new supply far outweighs any output loss. Operating rates above 75% and year-on-year output growth over 7% mean the market will stay flush with material.

On the demand side, the dual weakness of domestic and overseas consumption persists. Real-estate remains the key drag: property completions and sales—together over 60% of PVC end use—continued to decline through September. Downstream converters for pipes and profiles reported poor orders and thin margins, curbing restocking appetite. Exports, once a pressure valve, also narrowed as India’s higher anti-dumping tariffs and slow Southeast Asian recovery reduced overseas sales by 12% in Q3. In short, both internal and external demand show little sign of recovery.

Macroeconomic policy may be the final swing factor. If Q4 sees interest-rate cuts or stronger “guaranteed delivery of housing” policies, PVC could respond quickly as a proxy for construction sentiment. Historically, the probability of short-term rebounds after rate cuts is about 50%. Yet cost support remains thin—carbide and ethylene feedstocks stay cheap—and the transmission from policy easing to real-estate spending is slow. Thus, macro easing may spark temporary rallies but cannot reverse the structural oversupply.

In conclusion, Q4 PVC prices are likely to stay in a narrow, low-level range. The market faces a classic bind: low valuations and policy hopes limit further downside, but high inventories cap any rebound. Analysts expect continued weak consolidation, with volatility driven more by sentiment than fundamentals. Only a sharp turn in real-estate investment or a decisive policy surge could shift the trajectory.

For now, the PVC market remains in a cold cycle—supply rich, demand poor, and confidence thin. The faint light ahead comes not from fundamentals, but from the flicker of potential policy warmth.