When geopolitical rivalries and trade wars are discussed, people tend to think of fuels, precious minerals or rare earths—not rubber. Yet without it, the global automotive industry would face a problem that cannot easily be solved by increasing factory output. Natural rubber is a key ingredient in tires, and its supply depends on a production chain concentrated largely in Southeast Asia, stretching from millions of small-scale farmers to major industrial companies and international trading groups.

This supply chain, which operated for decades with relative stability, is now facing multiple pressures. Production is declining in some traditional source countries, climatic conditions are threatening harvests, and trade tensions are influencing the decisions of producers and buyers. At the same time, the European Union is preparing to implement stricter rules governing the origin of raw materials linked to deforestation. For industry giants such as Michelin, Pirelli and Bridgestone, securing rubber is no longer simply a matter of price, but also of maintaining access to markets.

The Most Telling Development Is Coming from Indonesia

Indonesia is the world’s second-largest producer of natural rubber. As of August 2026, the area planted with rubber trees in the country had shrunk by 17% over five years. Production is estimated to fall from more than 3 million tonnes in 2021 to around 2 million tonnes in 2026.

The cause is not just the cost of production. Farmers are gradually abandoning rubber in favor of palm oil, which in many cases offers better financial returns and requires less day-to-day labor. Rubber trees take five to seven years to begin producing, and harvesting requires systematic, ongoing work.

This shift has consequences that extend far beyond Indonesia’s borders. The country accounts for approximately 14% of global natural rubber production. Michelin maintains production operations there and sources raw materials from the local market. Declining availability is forcing manufacturers to seek alternative sources. The decisions producers make today will affect raw material availability for years to come.

Thailand remains the leading producer of natural rubber, while China is one of the main destinations for its exports. Beijing has a strong incentive to secure stable supplies, since its tire industry serves both the domestic automotive sector and export markets. The expansion of electric vehicles is creating additional demand, as their tires must cope with different loads and higher durability requirements.

At the same time, Western countries are seeking to diversify their sources of supply. Ivory Coast has emerged as a significant producer, while other West African countries are also playing an increasingly important role. This shift is clearly linked to companies’ efforts to reduce their dependence on specific countries.

Natural rubber is affected by agricultural production conditions, but it also competes with synthetic rubber, which is manufactured from petrochemical feedstocks. Changes in oil prices and petrochemical industry costs therefore influence tire manufacturers’ choices as well.

The overall picture, however, does not suggest a market in which production is declining everywhere. In August, the Association of Natural Rubber Producing Countries (ANRPC) forecast that global production would rise by 2.1% in 2026, reaching 15.279 million tonnes. Demand was also expected to increase, by 0.4%, to 15.356 million tonnes. These forecasts point to a market with little room for balance between supply and demand.

A Second Front Is Opening in Europe

The EU Deforestation Regulation, known as the EUDR, is scheduled to take effect on December 30, 2026, for large and medium-sized companies, with a later deadline for certain smaller businesses. Natural rubber is among the commodities covered by the regulation, and new tires remain within its scope.

Implementing the regulation presents companies with a difficult task. Approximately 85% of the world’s natural rubber comes from small-scale farmers, often working plots of just two or three hectares. The raw material passes through numerous intermediaries before reaching a factory. To demonstrate that its rubber comes from legally used land that is not associated with deforestation, a company must know far more than the identity of its direct supplier.

Major manufacturers have already begun investing in tracking and monitoring systems. Bridgestone announced that in 2025 it had achieved 76% traceability at the administrative-region level and 62% at the farm level, with the goal of achieving full traceability at the regional level by the end of 2027.

Michelin uses the RubberWay digital platform to map environmental and social risks across its supply chain.

The regulation also creates a potential risk: small producers that lack the resources to document their land or adapt to the new requirements could lose access to major buyers. Europe aims to curb deforestation, but the success of the policy will also depend on whether the small-scale farmers who form the backbone of global supply can comply with the new rules.

For major companies, the problem is not simply the purchase price of rubber, but the overall cost of securing the raw material. They do, of course, have the capacity to absorb some of these pressures, diversify their supplies and invest in recycled or alternative materials. However, they cannot eliminate their dependence on natural rubber entirely.

For drivers, this does not necessarily mean that tire prices will rise automatically or immediately. The final price also depends on competition, transportation costs, energy prices, each company’s commercial policies and demand. Nevertheless, if sourcing raw materials becomes more expensive and complicated, some of the additional costs may gradually be passed on to consumers.

Rubber is a striking example of the economic “butterfly effect,” through which geopolitics reaches into everyday life. A farmer in Indonesia deciding to abandon rubber trees, a period of drought in Asia, or a new European rule governing the origin of raw materials can affect the supply chain of a factory in Europe—and ultimately increase the cost of replacing the tires on our own cars.