In late April, the prevailing winds in the synthetic rubber market quietly shifted.
The "geopolitical premium"-a market trend previously driven by the situation in the Middle East-gradually receded, and the focal point of price fluctuations for styrene-butadiene rubber (SBR) and polybutadiene rubber (PBR) reverted to fundamental supply-and-demand dynamics. As the May Day holiday approached, downstream tire manufacturers concluded their pre-holiday stockpiling; consequently, the demand side began to exhibit signs of seasonal weakening. However, the combination of persistently high crude oil prices and low operating rates at production facilities has collectively established a price floor, pushing the market into a stalemate phase characterized by a tendency to rise rather than fall.
A contraction on the supply side serves as the core pillar of support for the current market. Prices for the key feedstock, butadiene, remain firm-bolstered by high crude oil prices-while profit margins for synthetic rubber production continue to be inverted (i.e., production costs exceed selling prices). According to industry data, since March, the operating rate of polybutadiene rubber facilities has dropped from 81% to approximately 53%; this figure is projected to slide further to around 40% in April. Major producers-such as Sinopec and Zhejiang Transfar-have either reduced operating loads or temporarily shut down facilities for maintenance, resulting in a tightening of available resources in the spot market. Although some private enterprises are planning to restart operations as profit margins show signs of recovery, the actual release of increased production volume will take time; thus, supply-side pressure is not expected to increase substantially in the short term.
The demand side is currently facing a test posed by the "holiday effect." During the long May Day holiday, downstream tire and rubber product manufacturers typically schedule shutdowns for maintenance, and the operating rates of sample companies in the all-steel tire sector are expected to decline. The end-market for heavy-duty trucks remains sluggish, leading to high finished-product inventories at tire factories. Consequently, raw material procurement is being conducted with extreme caution, with most manufacturers adhering to a "buy-as-needed" strategy rather than engaging in concentrated stockpiling-a factor that would otherwise provide a positive boost to the market. In contrast, the semi-steel tire market continues to perform reasonably well thanks to steady export orders; operating rates in this sector remain above 70%, thereby providing a sustained foundation of rigid demand for synthetic rubber.
Support from the cost side remains robust. With Brent crude oil prices holding steady above $112 per barrel, the naphtha cracking spread has reached a historical high; this cost pressure is being deeply transmitted through the butadiene value chain directly into the production costs of synthetic rubber. Even amidst uncertainties surrounding the U.S. Federal Reserve's monetary policy meeting in May-and the potential for geopolitical events (such as high-level diplomatic visits) to trigger market volatility-elevated crude oil prices ensure that the cost floor for synthetic rubber is unlikely to shift significantly downward in the near future.
Currently, the synthetic rubber market is characterized by a dynamic interplay defined by "strong cost support, weak demand." Although softening demand during the May Day holiday is expected to cap upside potential, low operating rates and persistently high crude oil prices will create significant resistance against any downward price movement. Prices for SBR 1502 and BR 9000 are projected to fluctuate within the 15,500–16,500 yuan/ton range in the lead-up to the holiday, awaiting fresh market drivers-specifically, the resumption of operations by downstream sectors and the restart of production facilities-following the break.