A Major Tire Manufacturer Commits to Supply Chain Transparency

Yokohama Rubber has become the latest major tire maker to join Project Tree, a blockchain-based sustainability program designed to bring transparency to the natural rubber supply chain. Starting September 25, the company began delivering commercial vehicle tires sourced through this initiative to FamilyMart, signaling a shift toward more accountable tire sourcing practices.

This move matters for shoppers because natural rubber accounts for roughly 30 percent of all tire raw materials, and approximately 70 percent of global natural rubber consumption feeds directly into tire manufacturing. When major producers like Yokohama commit to traceability systems, it creates downstream pressure for cleaner, more responsible sourcing across the entire industry.

Understanding Project Tree and Blockchain Traceability

blockchain technology network visualization
Photo by Conny Schneider

Project Tree, founded by Itochu Corp., uses blockchain technology to track natural rubber from farm to finished product. The system allows companies to identify exactly where their rubber originates and to support farmers through financial incentives and agricultural training programs. This addresses a longstanding challenge in tire manufacturing: knowing whether the materials used in your tire come from sustainable sources or environmentally damaging practices.

For consumers shopping for tires, this transparency framework means manufacturers can now demonstrate supply chain integrity in ways that were previously impossible. Quality standards and supply chain improvements continue to reshape what tire and parts shoppers can expect, and Project Tree represents another step in that direction.

Yokohama’s Multi-Layered Sustainability Approach

Yokohama has been building its sustainability credentials through several complementary initiatives. Its subsidiary, Y.T. Rubber Co., has obtained Chain of Custody certification from the Forest Stewardship Council, ensuring responsible management of natural rubber processing and distribution. The company also employs RubberWay Geo-Mapping as a risk assessment tool to evaluate sourcing practices.

Additionally, Yokohama is preparing to meet the European Union Deforestation Regulation, which takes effect December 30. This regulation requires any operator dealing in natural rubber or related products in the EU to perform due diligence and prove that products do not come from recently deforested land or contribute to further deforestation. By joining Project Tree now, Yokohama is positioning itself ahead of these regulatory requirements.

The company has also supported small-scale natural rubber farmers in Thailand’s Surat Thani province for several years, and participation in Project Tree strengthens these existing supplier relationships while expanding them through a more transparent framework.

Industry Leadership and Global Standards

tire manufacturing quality control
Photo by Acton Crawford

Yokohama is a founding member of the Global Platform for Sustainable Natural Rubber, an industry coalition focused on responsible sourcing. The company updated its Procurement Policy for Sustainable Natural Rubber in September 2021 and continues to strengthen collaboration with platform members.

Modern tire engineering combines advanced materials with sustainability considerations, reflecting how the industry is evolving. Beyond Project Tree, Yokohama is also advancing efforts toward the United Nations Sustainable Development Goals, with particular emphasis on promoting procurement of sustainable raw materials including natural rubber.

What This Means for Tire Shoppers

The practical takeaway for consumers is straightforward: when you purchase tires from manufacturers committed to traceability programs like Project Tree, you are supporting supply chains that prioritize environmental responsibility and farmer welfare. These commitments often correlate with higher manufacturing standards and greater overall product quality.

As regulations like the EU Deforestation Regulation expand globally, tire manufacturers with established traceability systems will find it easier to maintain market access and consumer trust. Yokohama’s early adoption of Project Tree positions the company favorably as these standards spread.

For buyers concerned about the environmental impact of their purchases, seeking out tires from manufacturers with transparent sourcing claims provides a concrete way to align consumption with values. Performance and durability remain core considerations alongside sustainability, and increasingly, responsible sourcing enhances rather than diminishes product quality.

Yokohama’s participation in Project Tree demonstrates that major tire producers recognize sustainability as a competitive advantage rather than a burden. As more manufacturers adopt similar practices, shoppers will find it increasingly common to verify exactly where their tire materials originate and under what conditions they were sourced.