Natural rubber (NR) prices strengthened sharply in 2026, with major benchmarks reaching multi-year highs as tight supply, firm consumption, elevated crude oil and synthetic rubber prices, and weather uncertainty supported the market. This is according the IRSG Natural Rubber Price Outlook - Short and Long-term Perspective report.

The momentum accelerated in the third quarter. In September, Indonesian SIR20 was 39% higher year-on-year, Thai STR20 33%, Malaysian SMR20 34%, European TSR20 68%, and Indian RSS3 46%