N Plant Explosion: A Black Swan Event for the Synthetic Rubber Supply Chain, Driving Up Inner Tube Prices in China.
TNR > company news > N Plant Explosion: A Black Swan Event for the Synthetic Rubber Supply Chain, Driving Up Inner Tube Prices in China.
2026-04-27
On the evening of March 31, 2026, an explosion and fire broke out at the Nizhnekamsk Petrochemical Plant (“Plant N”) in Russia. The facility’s core synthetic rubber production line was completely shut down, with no timeline for resuming operations.
The plant is part of Russia’s Sibur Group, a global leader in synthetic rubber and the world’s largest producer of isoprene rubber. It is also China’s most critical source of imported synthetic rubber.
According to the latest industry data:
Nearly half of China’s synthetic rubber imports depend on this plant.
56% of China’s polybutadiene rubber imports come from here.
5% of China’s isoprene rubber imports come from here.
No other company globally can fill the gap in the short term.
Against the backdrop of an already tight global supply chain and a domestic rubber industry near the brink of shortage, this accident is a true “black swan” event — directly triggering an annual supply crisis across China’s rubber and tire industries.
With insufficient domestic production capacity, a sharp reduction in core imports, and rapidly depleting inventory, China’s synthetic rubber supply is expected to drop sharply in April and May. No alternative global supply source is available, and price increases for tire inner tubes and a situation where supply falls short of demand have become inevitable.
