The Yokohama Rubber has developed a proprietary system that utilises AI to predict the physical properties of rubber compounds. The system is already being used to design rubber compounds for Yokohama tyres. The company is expecting the system’s ability to conduct a large number of virtual experiments will enable it to accelerate compound development, reduce development costs, and develop better performing products. The system also will make it easier for less-experienced engineers to create new compounds.

The system was developed under Yokohama’s new AI utilisation concept, HAICoLab, which was launched in October 2020. The system uses AI to predict a rubber compound’s physical properties based on the rubber compound design parameters input by an engineer. In addition, to facilitate engineers’ ability to confirm predicted results, the system includes a function that displays the certainty of predicted physical properties and one that searches for a compound composition that will achieve physical properties closest to the targeted ones. The new system enables collaborations between humans and AI that will lead to the acquisition of new knowledge. Going forward, Yokohama Rubber will expand the use of this new system for developing rubber compounds for use in tyres to a wide range of the company’s other products, including hoses and conveyor belts.

HAICoLab is an acronym for “Humans and AI ColLaborate” for digital innovation. It also has the meaning of a laboratory for joint research by humans and AI. The new concept aims at fostering digital innovations by facilitating collaborative efforts that merge human inspiration and creativity with the enormous data processing capability of AI. Yokohama aims to acquire new knowledge by creating and collecting data based on hypothetical conditions set by humans and then applying AI to predict, analyze and then search for the most optimal result. Yokohama Rubber has been advancing technological developments by using AI in its material and tire design and development processes. For example, in 2017 Yokohama Rubber unveiled a new rubber material development technology that applies materials informatics and a tyre design technology that applies informatics technology. Under its new HAICoLab concept, Yokohama Rubber is now using AI to develop innovative products and services as well as processes. Through this effort, Yokohama Rubber will contribute to the realisation of “Society 5.0,” a future society that will enhance people’s experiences and take advantage of innovative technologies such as AI and IoT, as advocated by the Japanese government’s Cabinet Office.

Wider range of AI utilisation

Tyre Trends spoke with Dr Eng. Masataka Koishi, Executive Fellow, Head of AI Laboratory, The Yokohama Rubber Co.,Ltd, for more details on the new development.

What led to the development of HAICoLab concept? Will this be extended to other areas of R&D?

We have been pursuing a number of AI initiatives, but they are limited to certain areas. Moving forward, our desire to use AI in a wide range of fields led us to create HAICoLab as a framework to support more widespread use of AI in the future.

In addition to serving as the foundation of our future future efforts, I think it will also help communicate Yokohama Rubber’s stance on AI utilisation.

We believe that people will play the key role in achieving digital innovation, which will be achieved by applying AI to real and virtual data that is based on hypothesis setting that is derived from human inspiration and eliminates cognitive bias. This collaboration between humans and AI is what we are calling HAICoLab.

Prior to formulating HAICoLab, we were proceeding with technological developments using AI in our material and tyre design and development processes. In 2017 we announced a rubber material development technology that applies materials informatics and a tyre design technology that uses informatics technology. We are now working on the structures, materials, and production areas that will lead to innovative processes (design development) and products.

Developments in other areas are not yet at a stage where we can make any concrete public announcements.

Please comment on the R&D team. Is Yokohama working in association with any University, Research Institute etc?

We are applying the results of research conducted with universities and research institutes in Japan and overseas in our development of materials informatics and tyre design technology using informatics as well as to HAICoLab. Meanwhile, our effort to generate virtual data through simulations and analyse that data using machine learning is being carried out on supercomputers available through Japan’s High Performance Computing Infrastructure (HPCI) as well as our own supercomputers.

How is Yokohama proceeding to adopt AI in other areas of tyre development?

Similar to our effort with compounds, we are now making preparations for the use of AI when considering tyre design specifications. However, we are not yet at the stage where we can say anything more specific.

While developing new concepts, is Yokohama focusing on new innovations in the automotive sector? Kindly comment in detail

We believe that the tyres of the future will need to respond to the trends towards the application of CASE and IoT technologies in automobiles. Accordingly, we are developing new technologies that will accommodate CASE. For example, as previously announced at a press conference at the 46th Tokyo Motor Show held in 2019, in the CASE domain of connectivity we are conducting joint research and development with Alps Alpine with a view to creating a solution business that will supplement our existing tire air pressure detection sensor with the ability to detect tread wear and road-surface conditions and then use digital tools to process and manage the acquired data.

In addition, this February we announced our SensorTire Technology Vision, a medium- and long-term vision for developing new technologies for passenger car tyre sensors. By implementing this Vision, we aim to support people’s mobility and contribute to the safe and secure operation of motor vehicles while addressing the changes in mobility demand by providing data obtained from SensorTires (IoT tyres) fitted with sensing functions to drivers and businesses providing various automobile-related services.

Looking further into the future, we plan to connect this data collected by our SensorTires with map data and road traffic related information (traffic jams, weather conditions, etc.) to provide value-added information, such as proposals for safe driving routes, that will contribute to the safe operation of autonomous-drive vehicles as well as the operations of companies engaged in MaaS-related businesses. By anticipating the various changed being brought about by electrification of the automobile and quickly and appropriately expanding our product lineup, we hope to secure a dominant position in the evolving tire market. (TT)

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A population of over 1.4 billion people catapulting into the world’s third largest automobile market with four million trucks plying across a road network of 6.3 million kilometres supported by a USD 13.4 billion tyre market and a mining sector contributing around 2–2.5 percent of the country’s GDP demonstrate the strength of India’s automobile, freight and tyre sectors.

The story doesn’t end there as the Central Government adopts a strategic approach on reducing carbon emissions across these verticals, especially automobile and tyres, with targets such as the Net Zero Carbon Emissions by 2070, battery electric vehicles target by 2030, zero-emission truck corridors, Extended Producer Responsibility for the tyre sector; the list just goes on.

Amidst all such statistics and targets, a silent spectator remains the old and varied sector of tyre retreading. In a recent news story reported by Tyre Trends, the Indian Tyre Technical Advisory Committee (ITTAC) had made a proposal to Tyre Retreading Education Association (TREA) for mandating certain standards that will improve the quality of retreads.  ITTAC has made recommendations to the BIS committee. TREA is part of the same committee. ITTAC and TREA are recommending different standards.

These standards included BIS retread standards, namely IS 15725, IS 15753, IS 15524 and IS 9168. The ITTAC had partially aligned Indian requirements with ECE R109, the European regulatory benchmark.

In a reply to the proposal, which was accessed by Tyre Trends, TREA urged the Indian Tyre Technical Advisory Committee to seek a deferment or non-applicability of BIS standard IS 15704:2018 for retreaded commercial vehicle tyres, warning that mandatory enforcement could cripple the sector.

In the letter, TREA argued that IS 15704:2018 is largely modelled on new tyre manufacturing norms and is technically unsuitable for retreading, which is a restoration and recycling process.

The standard mandates advanced laboratory tests such as spectrometer-based rubber analysis, endurance testing and compound uniformity checks, requirements that most retreading units, particularly small and medium enterprises, are not equipped to meet

The association highlighted that even large retreaders lack the infrastructure and skilled manpower needed for BIS-grade testing, while the sheer number of retreading units would make inspections and certifications operationally unmanageable for regulators.

TREA warned that compliance costs linked to machinery upgrades, audits and quality control could force 70–80 percent of units to shut down, leading to job losses, higher fleet operating costs and adverse environmental outcomes due to reduced recycling

Instead, TREA proposed that BIS prioritise retreading-specific standards such as IS 13531 and IS 15524, which focus on materials, process control, safety and quality consistency.

The body has also called for a phased transition roadmap, MSME support and industry training before any stricter norms are enforced, stressing that abrupt implementation would undermine the sector’s role in India’s circular economy.

The conundrum

India has a total of 36 administrative divisions comprising 28 states and 8 union territories. The tyre retreading sector has been continuously supporting circularity goals since the early 1970s across the world’s largest economy without getting mainstream recognition.

Even after five decades in service, the industry battles different bottlenecks including fragmentation, manpower shortage, tax pressures brought about by the recent GST revisions and now the implementation of such standards, just to name a few.

The sole practice that can simultaneously reduce carbon emissions from tyres and extend tyre life is assumed the nemesis of an ‘infamous and dangerous practice’ in some states of the country.

However, the industry has been drawing its techniques and quality parameters from the world’s oldest retreading economy, Europe.

“Big retreaders in India already have the necessary processes in place that conform to IS 15524 standards. However, as the standard is not yet mandated, we have voiced support for it because it is process-oriented and outlines how retreading should be carried out, including buffing and building procedures,” said TREA Chairman Karun Sanghi.

He added, “This standard focuses on how the work is done rather than imposing product-level testing that cannot be practically implemented. The current debate on IS 15704 stems from it being fundamentally incompatible. The standard includes requirements such as sidewall marking and destructive testing of retreaded tyres, which are impractical in a retreading environment where each tyre differs in brand, size, application and usage history,” he added.

Destructive testing, he argued, assumes uniform batch sizes. In retreading, where every casing is unique, testing even a single tyre would mean destroying finished products without yielding representative results. Applying such a framework would effectively require the destruction of every tyre in a batch, making compliance unviable.

“We have submitted our response to ITTAC and are awaiting feedback from the committee. We remain open to continued dialogue and will engage further once the committee responds to our submission,” said Sanghi.

According to him, a typical retreader processes about 300 tyres a month across multiple brands including MRF, JK Tyre, Apollo and Michelin and applications ranging from buses and trucks to mining vehicles. These casings vary widely in load cycles, operating conditions and duty patterns, often across several models from the same manufacturer.

The committee has cited European standard ECE R109, but Sanghi points to structural differences: “Europe is a global retreading hub where tyre manufacturers such as Michelin and Bridgestone dominate operations, collect their own tyres, retread them and return them to fleets, making batch-based destructive testing relevant. A similar model exists in US, where large tyre companies lead retreading and largely self-regulate without a single overarching standard. The Indian scenario is different, especially with a fragmented market.”

He stressed that the industry is not opposed to standards but to those that cannot be practically applied, warning that adopting European manufacturing-oriented norms without accounting for India’s market structure and operating realities would be counter-productive.

The debate is no longer about whether standards are needed but whether they are fit for purpose. Without accounting for India’s fragmented retreading ecosystem, enforcing impractical norms could dismantle a circular industry in the name of compliance.

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The second season of TGL Presented by SoFi, where Hankook Tire serves as the Founding and Official Tire Partner, commenced on 28 December 2025. This innovative league, a venture of TMRW Sports with backing from icons like Tiger Woods and Rory McIlroy, represents a strategic alignment for Hankook, uniting two entities driven by technological advancement. The partnership provides a global platform to reinforce Hankook's premium brand positioning across North America and worldwide through extensive visibility during broadcasts and at the state-of-the-art SoFi Center in Florida.

This unique venue embodies the league's fusion of sport and technology, featuring a massive simulator with a dedicated ScreenZone and a dynamic GreenZone. This area, equipped with a turntable and over 600 actuators, meticulously replicates real-world golf conditions indoors, creating an immersive arena experience. The competition itself is fast-paced and engaging, with teams of PGA TOUR players competing in Triples and Singles sessions over 15 holes. Innovative elements like the point-doubling ‘Hammer’, real-time strategy via ‘Hot Mic’ and a Shot Clock ensure a dynamic spectacle for fans.

The season opener presented a compelling narrative as a rematch of the inaugural finals, pitting the undefeated Atlanta Drive GC, featuring Justin Thomas and Patrick Cantlay, against a determined New York Golf Club squad led by Matt Fitzpatrick and Xander Schauffele. This match set the tone for an intensive season running through March, where six teams and 24 top golfers will compete. For Hankook, this partnership is more than signage; it is an active engagement with a global community, delivering a distinctive brand experience that bridges cutting-edge mobility and sport for enthusiasts everywhere.

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Dunlop (company name: Sumitomo Rubber Industries, Ltd.) has made its way to the annual A-List of CDP for climate change and water security. This premier designation, awarded for the first time to the company in the 2025 evaluation, recognises world-leading performance in transparency, risk management and environmental action. CDP’s annual assessment is a key benchmark for corporate sustainability across climate, water and forests.

This achievement stems from the Group’s integrated approach to material issues outlined in its corporate philosophy. It treats the interconnected challenges of climate change, biodiversity and the circular economy holistically, advancing concrete initiatives under its long-term ‘Driving Our Future’ sustainability policy.

On climate, the Group’s science-based emission reduction targets for 2030 are validated by the Science Based Targets initiative. Operational efforts include pioneering green hydrogen production at its Shirakawa Factory and developing tyres made entirely from sustainable materials by 2050. The company also works to reduce emissions across its supply chain, lowers tyre rolling resistance to improve vehicle fuel economy and extends product life through retreading.

For water security, the strategy is driven by localised risk assessments at global production sites. In seven facilities identified as high-risk, the goal is to achieve 100 percent wastewater recycling by 2050. Progress is already evident, with the company’s Thailand factory reaching full wastewater recycling in 2024.

These coordinated actions on multiple environmental fronts formed the basis for the Group’s simultaneous top-tier recognition in both critical categories from CDP.

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Bridgestone Corporation has initiated a novel co-creation programme in partnership with Ethiopian Airlines and Ethiopian Airports, focused on enhancing aviation safety at Addis Ababa Bole International Airport. This marks Bridgestone’s first sustained three-way collaboration with both an airline and an airport authority, targeting the reduction of Foreign Object Debris on runways and taxiways to support safer and more reliable aircraft operations.

The project was prompted by tyre-related incidents linked to debris at the airport, which previously risked disrupting flight schedules. Leveraging its specialised system for inspecting used airline tyres and analysing debris data, Bridgestone assessed conditions at the hub and proposed a tailored action plan. The company provided continuous support by analysing debris distribution patterns, developing visual hazard maps, advising on efficient collection methods and conducting training to raise awareness among airport personnel.

These sustained efforts have yielded significant results, substantially lowering the rate of tyre damage caused by runway debris compared to levels before the collaboration began. This reduction has supported improved on-time performance for Ethiopian Airlines while advancing overall operational safety. Additionally, the initiative has encouraged greater use of retreaded tyres, promoting economic efficiency and environmental sustainability within the airline’s operations.

Looking ahead, Bridgestone and Ethiopian Airlines Group plan to deepen their co-creation efforts, aiming to generate further value for the aviation sector and broader society through continued innovation and partnership.

Retta Melaku, Chief Operating Officer, Ethiopian Airlines, said, "At Ethiopian Airlines, the safety of our passengers, employees and aircraft is a priority. We are pleased to collaborate with Bridgestone to further strengthen our efforts in reducing FOD at Addis Ababa Bole International Airport and ensure safe operations at the hub airport."

Getaneh Adera, Managing Director, Ethiopian Airports, said, "We remain fully committed to upholding the highest safety standards at Bole International Airport at all times. This significant achievement in reducing FOD is the result of our strong commitment for safe operations and close collaboration with Bridgestone. Through our co-creation activities, we are pleased to have realised safer operations with enhanced productivity and economic value."

Jean-Philippe Minet, Managing Director, Bridgestone Aircraft Tire (Europe) S.A., said, "By combining the learnings and insights from Ethiopian Airlines' operational issues with our analysis technology and know-how, we have deepened our co-creation to propose customised solutions. We are delighted to contribute to safe aircraft operations with peace of mind and to improved operational productivity through the co-creation of efficient FOD reduction on airport surfaces. Through further expansion and evolution of this solution, we will amplify the value of our ‘Dan-Totsu Products’, trust with our customers and value of the data for creating new value."

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