Rubber Prices Correct Again, TSR20 Falls to 243.3 Cents — Is the Rally Running Out of Steam?
Medan, September 11, 2026 — Natural rubber prices came under renewed pressure in Friday morning trading. After correcting in the previous session, prices declined again at the start of today's trading, indicating that the pace of the rubber price rally, which had been quite aggressive since early August, is beginning to face selling pressure.
Data monitored at 09:08 showed the SICOM-TSR20 October contract at 243.3 US cents per kilogram, down 2.7 cents, or around 1.1 percent. On the Shanghai exchange, the most active RU rubber contract for January 2027 also weakened to 19,265 yuan per tonne, down 335 yuan.
The pressure was not entirely unexpected. On September 10, SICOM TSR20 had already fallen from 249.9 cents to 246 cents per kilogram. A day earlier, the price had reached 249.9 cents after standing at 249 cents on September 8. This means the correction has continued for two consecutive sessions after prices approached the psychological 250-cent level.
From 211 Cents to Nearly 250 Cents
Looking at the price movement over the past several weeks, the rise in rubber prices has been significant. On August 3, SICOM TSR20 was still at 211 cents per kilogram. The price then climbed steadily to 249.9 cents on September 9, an increase of nearly 18.4 percent in about five weeks.
The rapid increase has created room for the market to consolidate. Moreover, the strengthening has not been fully supported by a surge in end-user demand. Several external factors have instead become the main drivers of the rally, ranging from supply concerns and weather conditions in producing countries to crude oil prices and higher synthetic rubber feedstock costs.
Developments in global commodity markets also point to pressure from elevated oil prices. Brent crude has remained above US$100 a barrel amid growing concerns over supply disruptions caused by the conflict in the Middle East. This indirectly supports natural rubber because it competes with synthetic rubber, whose feedstock is derived from crude oil.
Weather Remains a Key Concern
On the supply side, weather remains one of the factors closely watched by market participants. Heavy rainfall in Southeast Asia can disrupt tapping and the collection of raw rubber.
Thailand, one of the world's largest rubber producers, has received warnings of potentially intense tropical storms from September 11 to 15. Such conditions could disrupt tapping activity if rainfall increases in major producing areas.
However, weather factors also have another side. Some analysts believe that part of the recent increase in rubber prices has already incorporated expectations of an El Niño premium, or concerns about weather-related production disruptions. This means that if weather conditions in producing regions improve and drought risks ease, some of that premium could disappear from prices.
In other words, the market is currently trading not only on actual supply conditions but also on expectations about future supply.
Raw Material Prices Still Provide Support
At the producer level, Thai rubber raw material prices remain firm. Market data show that on September 9, smoked sheet was around 85.75 baht per kilogram, latex at 79 baht per kilogram, while cup lump reached 73.60 baht per kilogram.
Rubber inventories at warehouses designated by the Osaka Exchange have also declined. As of August 31, RSS stocks stood at 2,397 tonnes, down 295 tonnes from 2,692 tonnes on August 20. Lower inventories provide positive sentiment on the supply side.
In China, the rubber industry chain is also facing higher costs. Rising butadiene prices are supporting synthetic rubber production costs, indirectly keeping natural rubber competitive. The issue, however, lies in the downstream sector's ability to absorb these higher prices.
The Main Problem: Demand Is Not as Strong as the Price Increase
This is one of the current weak points of the rubber rally.
Higher raw material prices have not yet been fully accompanied by stronger demand from downstream industries. Tire and rubber-product manufacturers remain relatively cautious about purchasing at high prices. Purchases tend to be based on actual needs rather than large-scale buying to chase higher prices.
Meanwhile, global demand conditions have not fully supported the price increase. Data from China's automotive industry show that vehicle sales in August fell 5.1 percent year-on-year. Weakness in the automotive sector is a concern for the rubber market because the tire industry is one of the major users of rubber.
Another issue is the ability of tire manufacturers to pass higher raw material costs on to consumers. When rubber prices rise too quickly, the increase cannot always be immediately passed through to tire prices because consumers have limited tolerance for higher prices.
As a result, an interesting situation has emerged: the supply side is supporting prices, but demand has not yet provided enough strength to sustain the rally at elevated levels.
Is the Rally Over?
Not necessarily.
The correction over the past two sessions is better viewed as a test of strength following a prolonged rally, rather than automatically as a sign that the uptrend has ended.
Rubber fundamentals still have several supportive factors. Weather-related production disruptions, inventory conditions, raw material prices, elevated oil prices and potential supply disruptions could continue to support market sentiment.
However, a sustained increase requires stronger demand. Without improved consumption from the tire industry and other rubber-using sectors, the upside potential will become increasingly limited.
Market analysis suggests that the rubber industry may continue to move within a fluctuating pattern with a bullish bias in the short term, but gains could slow and the risk of a correction from elevated levels remains if end-user demand does not improve significantly.
Levels to Watch Today
Technically, after falling to 243.3 cents, the 241–242-cent area is an important zone to watch. As long as this area holds, the correction can still be viewed as consolidation following the sharp rise.
If selling pressure intensifies and 241 cents is decisively breached, prices could test the next area around 235–236 cents. Conversely, if prices recover and move above 246–247 cents, the possibility of retesting 249–250 cents remains open.
Therefore, for today's session, the 241–247-cent range can serve as the main area of focus. A move outside this range would provide a clearer indication of whether the market is merely undergoing a temporary correction or entering a deeper decline.
Note: The technical levels above are estimates based on price patterns and do not represent a certainty about market direction. Actual movements can change rapidly in response to oil sentiment, geopolitical developments, weather in producing countries, movements in Chinese and Japanese exchanges, and downstream buying activity.
Correction or the Start of a Trend Change?
For now, it is more appropriate to describe the current condition as a correction following a rally, rather than immediately concluding that the bullish trend has ended.
TSR20 prices remain well above early-August levels. Even after two days of correction, the price is still around 243 cents, compared with 211 cents on August 3.
The biggest question now is no longer whether rubber has reasons to rise, but whether demand can catch up with the price increase that has already taken place.
If supply remains tight while demand begins to improve, the current correction could become a pause before prices resume their upward move. Conversely, if weather improves, supply concerns ease, oil prices lose momentum and downstream demand remains weak, the correction could develop into a deeper decline.
The rubber market is now entering an important phase: after a prolonged rally, prices are testing whether fundamentals are truly strong enough to sustain the 240–250-cent-per-kilogram range.