The supply-demand balance in the acrylonitrile market is shifting subtly. On September 1, Zhejiang Petrochemical's 520,000-ton-per-year acrylonitrile unit resumed operation at 90% load. Given its significant share of national capacity, this move has intensified supply glut expectations and put downward pressure on spot prices. Meanwhile, the upstream propylene market saw a different trend—the main futures contract closed at 8,383 CNY/ton on August 31, up 244 CNY/ton, buoyed by expectations of increased demand.
Event Background
This load adjustment by Zhejiang Petrochemical is not an isolated restart after maintenance but reflects the trade-off between profit and market share for large integrated refining-petrochemical enterprises. With a capacity of 520,000 tons per year, this unit is among the top tier in the acrylonitrile industry, and its load changes directly alter monthly domestic supply. At 90% load, monthly output will increase by approximately 15,000 to 20,000 tons compared to previous low-load operations. This increment will most directly impact the East China market, which is already a major consumption and trading hub for acrylonitrile.
From the feedstock side, propylene, as the core raw material for acrylonitrile production, sees procurement demand rise in tandem with higher unit load. The propylene futures rally reflects the market's forward pricing of this demand increment. Notably, the price divergence between propylene and acrylonitrile is not a disconnect but the beginning of profit redistribution within the chain: weaker acrylonitrile prices compress production margins, while stronger propylene further squeezes those margins.
Industry Impact
For downstream acrylonitrile users, the expectation of looser supply is a double-edged sword. In the short term, lower spot prices help reduce raw material costs for ABS resin, acrylic fiber, acrylamide, and other downstream products, benefiting small and medium-sized cost-sensitive processors. However, if higher loads lead to sustained oversupply, price wars may spread to downstream products, eroding end-market profits and harming industry health.
From a regional perspective, traders and downstream plants in East China (e.g., Ningbo, Jiaxing, Nantong) will feel the supply change first. Traders may face inventory devaluation risks, while downstream plants gain stronger bargaining power. For northern and southern China markets, price transmission may lag by one to two weeks due to logistics and regional supply-demand structures, creating arbitrage opportunities across regions.
The load adjustment also alters procurement rhythm expectations. Acrylonitrile plants may lean toward just-in-time feedstock purchasing rather than building long-term inventories to hedge against raw material price volatility. Propylene suppliers, meanwhile, may seize the chance to firm prices, especially when PDH units undergo maintenance, limiting supply elasticity and increasing upward price probability.