Yokohama Rubber has reported new findings from an international research programme aimed at combating leaf fall disease, a fungal infection that has disrupted natural rubber production in Indonesia, the world’s second-largest supplier.

The results were presented on 9 December at the fifth Joint Coordinating Committee Meeting held at Universitas Indonesia. The initiative, formally titled “Development of Complex Technologies for Prevention and Control of Rubber Tree Leaf Fall Diseases”, forms part of the Science and Technology Research Partnership for Sustainable Development, a scheme run by the Japan Science and Technology Agency and the Japan International Cooperation Agency with support from Japan’s foreign and education ministries.

The project brings together Japanese industry, government and academic institutions, including the national research agency RIKEN, with Indonesian partners. Its objective is to maintain output from smallholders, who account for more than 90 per cent of Indonesia’s natural rubber production. The programme is pursuing several approaches: pesticide-based disease control; the development of disease-resistant clones; and early detection using satellite and drone imagery.

Yokohama Rubber, which uses natural rubber as a principal raw material for tyres, has been involved since the project’s launch in 2020. The company began assessing pesticide effects on rubber quality in 2024, following a screening process. Field tests on large plantations have shown that correctly applied pesticides do not impair the properties of raw or vulcanised rubber. Yokohama Rubber is now contributing to research on how such treatments may affect smallholders.

The group said its “Procurement Policy for Sustainable Natural Rubber” incorporates support for participants across the supply chain, including small-scale farmers. It expects its role in the project to aid the sustainable production of natural rubber and help stabilise smallholder incomes. Yokohama Rubber is also an official partner in a separate SATREPS initiative on using rubber seeds to develop environmentally focused products intended to mitigate global warming and plastic pollution.

Under its sustainability theme, “Caring for the Future”, the company has emphasised links between its commercial activities and broader environmental and social objectives.

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Sailun Group, a prominent player in the global tyre industry, has taken a leading role in advancing sustainable natural rubber practices. As a core raw material for tyre manufacturing, natural rubber requires ecological protection and a stable supply, both essential for the sector’s high-quality development. In 2025, the company, as a member of the Global Platform for Sustainable Natural Rubber (GPSNR), initiated a project focused on sustainable livelihoods and ecological education for smallholders in eastern Thailand under the GPSNR Shared Investment Mechanism.

This initiative unites strategic partners across the natural rubber value chain, including the Rubber Authority of Thailand’s Rayong office and Save the Children Thailand. Through multi-stakeholder collaboration, the project aims to foster a more sustainable natural rubber ecosystem. Recently, Sailun Group invited GPSNR Chief Executive Officer Stefano Savi and his delegation to Thailand for a field visit to review the project’s interim achievements, reflecting the company’s ‘eco+’ sustainability strategy and its active role in global governance for sustainable natural rubber.

Eastern Thailand’s natural rubber industry supports millions of smallholder households, and the project directly addresses the needs of 500 such farmers. Targeted training programmes have been delivered on environmentally responsible tapping techniques and regulatory compliance, including guidance on the European Union Deforestation Regulation. An innovative consultation network comprising one central hub, eight fixed stations and five mobile units now provides ongoing support on policy interpretation and practical problem-solving.

A structured and replicable knowledge system has been developed, including training materials on low-impact tapping and compliance. Special emphasis is placed on encouraging women and young people to participate, promoting intergenerational knowledge transfer. During the visit, the delegation held technical discussions with Rayong officials on sustainable tapping and rubber tree management, inspected standardised production lines and logistics facilities and reviewed the consultation stations, praising the integrated technology, services and compliance support model.

To address challenges such as improper tapping and soil degradation, five GPSNR demonstration plots have been established. Smallholders receive free organic soil improvement packages and professional tapping tools, alongside systematic training on sustainable soil management. The delegation observed pH monitoring systems and noted improvements including reduced soil acidity and better growing conditions. Direct engagement with farmers provided insights into practical challenges, and the delegation commended the project’s pragmatic approach to strengthening ecological cultivation and long-term productivity.

Beyond livelihood improvements, the project prioritises education through infrastructure upgrades at three schools attended by rubber farmers’ children. In partnership with Save the Children Thailand, ecological education corners with tailored curricula and drawing competitions have been set up. A scholarship programme supports disadvantaged students. The delegation visited Rayong Guanghua School and Banraijandee School, reviewing improvements and awarding scholarships, while discussions explored future collaboration on integrating sustainable natural rubber development with children’s ecological education.

Since implementation began, notable interim results have been achieved across multiple rubber‑producing communities. Smallholders’ sustainable production capabilities have significantly improved, while more children engage with nature and understand the natural rubber industry. This dual‑impact model of economic empowerment and environmental stewardship guides future efforts. Sailun Group will continue leveraging its industry leadership and the GPSNR platform to deepen collaboration with partners, research institutions and non‑profits, contributing to biodiversity conservation, supply chain resilience and high‑quality sustainable development across the global tyre and natural rubber industries.

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Shin-Etsu Chemical has announced a sweeping price revision for its entire range of silicone products, effective for all shipments from 1 May 2026. The adjustment applies to every product handled by the company’s Silicone Division, with increases set at a minimum of 10 percent. Actual revision rates will vary depending on the specific product category.

The decision follows recent developments in the Middle East, which have triggered sharp surges in crude oil and naphtha prices. This has led to a steep rise in the cost of oil-derived raw materials. Additionally, Shin-Etsu Chemical is confronting higher expenses related to manufacturing energy, product containers, packaging materials and logistics, all of which have contributed to the need for a price correction.

Despite exhausting all possible internal measures to reduce manufacturing costs, the company concluded that these efforts alone cannot absorb the mounting cost pressures. Shin-Etsu Chemical is now committed to fully communicating the situation to its product users and securing their understanding of the necessary selling price revisions.

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The Association of Natural Rubber Producing Countries (ANRPC) recently participated in a Hari Raya Open House event. The gathering was organised by Malaysia’s Rubber Development Division, which falls under the Ministry of Plantation and Commodities. This occasion allowed the ANRPC to connect with important figures within the natural rubber sector. By bringing together various industry partners, the open house successfully created an atmosphere of goodwill and strengthened existing relationships.

The ANRPC has conveyed its genuine gratitude to the event’s hosts for their warm reception and thoughtful organisation. The association acknowledged the importance of uniting stakeholders in such a meaningful celebration, which helps reinforce shared goals and collaborative spirit across the sector.

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ARLANXEO has officially opened its Innovation Center Asia (ICA) in Changzhou, China, transforming the former Regional Technical Center into a full-fledged Asian innovation hub. This upgrade significantly strengthens the company’s global research and development network, with a clear focus on serving the local Chinese market as well as broader regional needs. The expansion reflects ARLANXEO’s commitment to advancing performance elastomers through targeted regional investment.

Now boasting larger facilities, an expanded team and new laboratory equipment, the Innovation Center Asia is equipped to handle rubber compounding, processing, physical testing, chemical analysis, battery prototyping and more. A dedicated chemistry lab has been added to support the nearby HNBR plant and global HNBR research activities. Located alongside ARLANXEO’s EPDM and HNBR plants in Changzhou, the centre fosters close customer collaboration to address evolving market needs. It also works in tandem with the company’s Dormagen, Germany, innovation centre, jointly developing new testing methods, exploring advanced technologies and delivering innovative product solutions worldwide.

The inauguration event featured speeches from Herman Dikland, ARLANXEO’s Chief Technology and Sustainability Officer, and Hong Sun, Managing Director of ARLANXEO China. Joining them at the ceremony were company representatives, key customers, local government officials and academic partners from various universities. Their presence underscored the collaborative spirit and shared interest in driving innovation forward.

Herman Dikland, Chief Technology and Sustainability Officer, ARLANXEO, said, “Innovation is a core driver of ARLANXEO’s sustainable growth, and China plays an important role in our global innovation ecosystem. This state-of-the-art laboratory facility puts us in an excellent position to advance our R&D capabilities and reinforce our market position. We look forward to driving frontier innovation together with our passionate and creative China team while bringing China-based innovation into solutions for global markets.”

Hong Sun, Managing Director, ARLANXEO China, said, “The inauguration of the Innovation Center Asia reflects our commitment to supporting the rapid transformation of China’s rubber industry during the 15th Five-Year Plan period. With growing demand for advanced materials and customised formulations, the new centre will further strengthen our proximity to customers, enhance our agility in meeting market needs and better support the upgrading of the entire rubber industry.”

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