China domestic plastics spot markets have carried a soft supply-and-demand tone into August, with most grades drifting sideways to lower. According to industry monitoring, PVC has traded lower in choppy fashion since late July under pressure from both supply and demand. The July polycarbonate market was characterised by ample supply, weak demand and a return of costs to normal levels, with prices falling first and then recovering. ABS was pulled in two directions by firmer feedstocks and weak end-use demand, consolidating after an initial rise. Natural rubber has also weakened in volatile trade since late July, while PA6 has held a sideways pattern.
In polyolefins, both cost support and demand loosened in the first ten days of August. Daily market commentary indicates that PP eased modestly as costs and demand softened simultaneously, while PE futures opened higher and closed lower, dragging spot prices down with them. Petrochemical producers have broadly kept ex-works list prices firm, but traders are selling flexibly at prevailing market levels. Actual transactions remain difficult to conclude, discounting at the intermediate layer has become more common, and the price centre of gravity is edging lower.
Downstream film demand is similarly subdued. BOPP film prices have moved within a narrow band in line with limited feedstock fluctuation. CPP prices retreated as raw material costs softened slightly. BOPA gains have been clearly capped by the supply-demand imbalance, while BOPET has seen only limited new order flow, with buyers restricted to essential requirements. The EVA market has been quiet, with petrochemical list prices holding firm but foaming-sector demand weak, limited end-user follow-through, traders pricing to the market, and slow physical trade.
Notably, PVC has shown signs of a modest rebound in recent sessions. On 6 August the front-month PVC futures contract closed up 0.79% at CNY 4,493 per tonne after touching an intraday high of CNY 4,502, while the spot price index rose 0.43% to 4,618 points, standing out within an otherwise weakening plastics complex. Analysts attribute the move mainly to an oversold correction after a deep prior decline, together with a short-term supply contraction caused by turnarounds at some plants. Until property and infrastructure demand improves materially, however, the upside for PVC remains clearly constrained.
Overall, the Chinese plastics market remains in its traditional seasonal trough in August. New capacity continues to come on stream on the supply side, demand recovery is slow, and inventory pressure along the chain is accumulating. The market widely expects the peak season commonly known as golden September and silver October to be the key variable determining whether prices stabilise. Until that peak season genuinely materialises, every link in the value chain still needs to control inventory and exposure risk carefully.
