Rubber Prices Hold Firm as Market Awaits Fresh Catalysts Amid El Niño Concerns and Global Uncertainty
Medan, August 26, 2026 – Global natural rubber prices remained at elevated levels in Wednesday's trading (Aug. 26), although the recent rally began to lose momentum as market participants adopted a more cautious stance. Traders are now awaiting fresh catalysts from weather developments in Southeast Asia, crude oil prices, and demand prospects in China, the world's largest consumer of natural rubber.
As of 11:38 a.m. WIB (GMT+7), the SICOM TSR20 September 2026 contract was trading at US 235.3 cents/kg, unchanged from Tuesday's close. Meanwhile, the most active RSS3 January 2027 contract on the Shanghai Futures Exchange (SHFE) declined 120 yuan to 18,565 yuan per tonne, following a strong rally in the previous session.
Despite the pullback in Shanghai, market participants viewed the decline largely as profit-taking after several consecutive days of gains. Overall market sentiment remained constructive, as there has been no significant change in the underlying supply fundamentals.
Rally Remains Intact
Compared with the beginning of the year, natural rubber prices have posted an impressive recovery.
The SICOM TSR20 contract started 2026 at around US 181.7 cents/kg and has since climbed to approximately US 235 cents/kg, representing a gain of nearly 30% year-to-date.
Although prices briefly retreated to around US 209 cents/kg in late June, the market has steadily recovered throughout August, bringing prices back to their highest levels in several months. According to the Japan Exchange Group (JPX), rubber futures across the major exchanges have been supported by both commercial and speculative buying.
Global Supply Remains Stable
From a fundamental perspective, global natural rubber supply remains relatively stable.
In Thailand, the world's largest natural rubber producer, more frequent nighttime rainfall has occasionally disrupted tapping activities in some producing regions. However, weather conditions have not yet caused any significant production losses, meaning overall supply remains largely unaffected.
Nevertheless, market attention is increasingly focused on the possible development of El Niño during the second half of the year. Several international climate agencies have indicated a growing probability of El Niño conditions, which could bring prolonged dry weather to parts of Southeast Asia and eventually affect rubber production.
At present, however, the impact remains largely anticipatory rather than actual, with no significant decline in output reported.
China's Rubber Inventories Continue to Decline
Another factor supporting prices is the continued decline in natural rubber inventories held at commercial warehouses across China.
As of mid-August, total inventories stood at approximately 1.153 million tonnes, slightly lower than the previous week. The decline was mainly recorded in dark-grade rubber stocks, while inventories at SHFE and INE warehouses also continued to trend lower.
The inventory drawdown suggests that industrial demand continues to absorb incoming supplies, easing concerns about excess availability and providing additional support for market prices.
Crude Oil and Geopolitics Remain Key Market Drivers
Market participants are also closely monitoring developments in the global crude oil market.
Relatively firm crude oil prices have increased production costs for synthetic rubber, which is derived from petrochemical feedstocks. This has slightly improved the competitiveness of natural rubber, providing additional support to market sentiment.
Meanwhile, ongoing geopolitical uncertainties—particularly those affecting global energy supplies—continue to influence commodity markets. Although geopolitical developments do not directly affect natural rubber production, they can impact energy costs, freight rates, and currency movements, all of which indirectly influence rubber prices.
Demand Remains Stable
On the demand side, there has yet to be a significant acceleration in consumption.
The tire industry, which accounts for the largest share of natural rubber consumption, continues to operate at relatively stable production levels. In China, manufacturing activity has remained steady, although economic growth has yet to return to stronger expansion.
As a result, demand has not been strong enough to trigger another sharp price rally. At the same time, there has been no meaningful deterioration in consumption, allowing overall market fundamentals to remain broadly balanced.
Consequently, natural rubber prices are expected to remain relatively firm while the market waits for new developments that could determine the next price direction.
Market Outlook for Today
Disclaimer: The following technical outlook is based on price movements, market momentum, and available information as of 11:38 a.m. WIB. It is provided solely for market commentary and should not be considered investment advice or a guarantee of future price performance.
From a technical perspective, as long as the SICOM TSR20 September 2026 contract remains above the US 234 cents/kg support area, the short-term trend is expected to stay constructive. Immediate upside targets are seen in the US 236–238 cents/kg range should additional positive catalysts emerge from weather developments, inventory declines, or stronger regional market performance.
If buying momentum strengthens further, prices could once again test the psychologically important US 240 cents/kg level.
On the downside, should profit-taking intensify, the US 232–233 cents/kg range is expected to provide the first support. As long as prices remain above this level, the short-term market outlook is expected to stay moderately bullish, with further gains likely to occur amid continued price volatility.