Asian rubber prices rise slightly, Mexico imposes tariffs on Chinese goods

Rubber prices on Asian exchanges recorded a slight increase in the trading session on November 18. The most notable development in the global market was Mexico's official imposition of permanent anti-dumping duties on synthetic rubber imported from China. Meanwhile, the domestic rubber market maintained price stability.

Rubber price today November 18 continues to increase

World rubber price developments

At the end of the trading session, rubber futures prices in major markets in Asia all recorded upward adjustments:

In Thailand: Rubber futures price for December 2025 increased by 0.6%, equivalent to 0.39 Baht, to 67.68 Baht/kg.
In Japan (OSE): December rubber futures prices increased 0.3%, equivalent to 0.9 Yen, to 322 Yen/kg.
In China: January 2026 rubber futures increased 0.1%, equivalent to 15 yuan, to 15,230 yuan/ton.

Mexico imposes permanent tariffs on Chinese synthetic rubber

The Mexican government has decided to impose permanent tariffs on styrene butadiene styrene (SBS) rubber imported from China. The move is aimed at protecting domestic production from the rise of cheap goods.

Details on tariffs and products

The Mexican Ministry of Economy said the taxed product will be subject to a specific fee of $0.8324 per kilogram. SBS is a thermoplastic elastomer widely used in the production of shoe soles, adhesives, roofing materials and heat-resistant asphalt.

Basis for tax imposition decision

The decision follows an investigation that began in April 2024 and was based on a complaint filed by Dynasol Elastómeros, Mexico’s sole producer of SBS, which said a surge in cheap Chinese imports had hurt its business.

The investigation found that Chinese SBS prices were 38% to 54% cheaper than Mexican products and 37% to 52% cheaper than imports from other countries. The Mexican Ministry of Economy also noted that China now accounts for more than half of global SBS production capacity, creating a supply glut and huge export pressure.

Domestic rubber prices remain stable

In contrast to the world market, the purchase price of rubber latex at domestic companies did not record any fluctuations on November 18. Below is the reference price list at some businesses:

Company	Type of latex	Purchase price
Binh Long Company	Latex at the factory	422 VND/degree TSC/kg
Binh Long Company	Latex at the production team	412 VND/TSC/kg
Binh Long Company	Mixed latex (DRC 60%)	14,000 VND/kg
Ba Ria Rubber Company	Latex (25-30 TSC)	405 VND/degree TSC/kg
Ba Ria Rubber Company	DRC latex (35-44%)	13,500 VND/kg
Ba Ria Rubber Company	Raw latex	18,000 VND/kg
MangYang Company	Latex (Type 1-2)	394 - 399 VND/TSC
MangYang Company	Mixed latex (Type 1-2)	359 - 409 VND/DRC
Phu Rieng Company	Miscellaneous latex	390 VND/DRC
Phu Rieng Company	latex	420 VND/TSC