Yokohama Rubber Backs International Initiative to Protect Natural Rubber Supply and Smallholder Livelihoods
SHERIDAN, WYOMING - December 26, 2025 - Yokohama Rubber is deepening its sustainability strategy and raw materials risk management by supporting an international joint research project in Indonesia aimed at preventing rubber tree leaf fall diseases, a growing threat to global natural rubber production and the tire industry's long-term resilience.
Securing Natural Rubber at the Source in Indonesia
The company is cooperating in the multi-year project "Development of Complex Technologies for Prevention and Control of Rubber Tree Leaf Fall Diseases," which targets one of the most serious plant health challenges facing natural rubber plantations in Indonesia, the world's second-largest producer.
Leaf fall disease has become widespread in key growing regions, leading to significant yield losses and jeopardizing supply for industrial users, including tire manufacturers.