The Yokohama Rubber Co., one of the leading tyre manufacturers globally, has announced that it has succeeded this month in developing a proprietary tyre design support system that uses eXplainable AI (XAI).

This enables it to create the desired tyre features by supplementing the knowledge and experience of development staff while also making it easier for less-experienced staff to design tyres. In addition to getting new insights and inspirations to the development of products and performance, it also leads to reduction in development time and costs. 

Yokohama states that the new tyre design support system was created to make its tyre development process more innovative and is based on its HAICoLab AI utilisation concept, which was launched in October 2020. 

How does tyre development happen?

The tyre development begins with a search for features (design factors that determine the tyre’s material, shape, and structure) that will improve the its characteristic values (numerical values and indicators that represent performance and quality) and achieve the development goals. 

Yokohama’s new tyre design support system was developed using a customised version of XAI called SHAP (SHapley Additive exPlanations), which provides developers with the features that can be useful for realising the desired tyre characteristics. 

In addition, the system provides multifaceted indicators that make it easier for developers to understand how to adjust the obtained features. The system will enable less-experienced developers to efficiently develop new tyre designs.

XAI uses the standard specifications and targeted characteristic values set by development staff to determine the targeted characteristics that need to be improved and related quantitative values.

They further interpret the information presented by XAI (features that can be useful for realising the desired tyre characteristics) from multiple perspectives and modify the specifications. The staff then applied the characteristic value estimation AI developed by Yokohama Rubber in 2021 to check whether each characteristic value was achieving the targeted level. The final specifications are determined after repeating this process, and XAI is able to confirm the basis for each of these specifications — the design factors (features) that help improve or maintain each characteristic value and its contribution rate. 

This collaborative effort between humans and AI generates new discoveries and inspirations that will lead to the development of products with higher performance levels.

The Japanese major plans to use this system to develop a wide range of tyre products and broaden the applicable areas of its HAICoLab.
HAICoLab is a framework that aims to realise digital transformation by merging the unique inspiration and creativity of humans with AI’s enormous data processing capability. 

The resulting human-AI collaborations enable people to interpret, analyse, and judge AI-generated results without being trapped by preconceptions and cognitive biases by incorporating perspectives from outside from their own field of expertise and opinions different from their own that supplement their own extensive experience, knowledge, and assessment criteria. 

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Sri Trang Agro-Industry Public Company Limited (STA) has been named a Sustainability Yearbook Member in the Auto Components category for the first time. The recognition took place on 11 May 2026 at the S&P Global Sustainability Yearbook Distinction Ceremony hosted by S&P Global at the Eastin Grand Hotel Phayathai, where Thai companies featured in the Sustainability Yearbook 2026 were celebrated. From over 9,200 firms assessed in the 2025 Corporate Sustainability Assessment (CSA), only 848 earned Yearbook membership.

STA’s inclusion highlights its strengths in the Social Dimension, particularly human rights, occupational health and safety and employee development. Environmentally, the company has committed to achieving net zero greenhouse gas emissions by 2050, with a short-term target of reducing Scope 1 and 2 emissions per product unit by 10 percent by 2026, compared to the 2021 baseline.

The S&P Global assessment reaffirms STA’s leadership in the integrated rubber industry under its Sri Trang Green Rubber vision. The company drives product quality while managing environmental, social, governance and emerging risks, thereby creating stakeholder value and strengthening trust among partners and consumers.

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American tyre brand General Tire has released a new all-season tyre aimed at drivers who refuse to compromise between on-road precision and off-road toughness. The Grabber Cross A/S achieves this balance by marrying an unusually stiff tread pattern with a rubber mix explicitly formulated to resist cutting and chunking on harsh terrain.

For drivers who spend time on rocky or uneven terrain, the tyre’s hexagonal tread blocks deliver grip through sharp biting edges, while chamfered groove edges further boost off-road traction. A highly resistant crossover compound protects against tread damage on rough ground. Meanwhile, transverse and longitudinal sipes carved into the blocks provide wet and snowy road grip, and an open shoulder design rapidly channels water away to prevent aquaplaning. On dry roads, internal support elements between the blocks create an extra-stiff tread that distributes pressure evenly, allowing precise steering and sustained high-speed running without sacrificing mileage. Importantly, that stiffness does not come at the cost of comfort, as the tyre also delivers low rolling noise and a smooth ride.

Certified for winter use, the Grabber Cross A/S carries both the M+S marking and the three-peak mountain snowflake symbol, the latter being mandatory in Germany and France since 2024. General Tire offers the model in 44 sizes spanning 16 to 22 inches in diameter, with top speed approvals reaching 240 kmph depending on the size. The tyre fits a broad range of two- and four-wheel-drive vehicles, including popular SUVs such as the VW Tiguan, KIA Sorento, Ford Kuga, Mazda CX 90 and Volvo XC90. An ‘EV Compatible’ sidewall logo also confirms its readiness for electric vehicles.

The Grabber Cross A/S is now reaching dealer shelves and service centres. According to the EU tyre label, this all-season 4x4 tyre earns a rolling resistance rating of C or D, a wet grip score of C and a B classification for rolling noise – positioning it as a versatile option for SUV and EV owners who want one tyre for all seasons.

Matthias Bartz, Business Development Manager for General Tire in Europe, the Middle East and Africa, said, "The Grabber Cross A/S is General Tire's entry into a new product segment. The tyre is designed for high speeds on fast roads but also offers excellent off-road performance in challenging terrain. With our extensive size portfolio, we can offer tyres for about 85 percent of the most popular crossover SUVs.”

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Portronics has launched a compact portable tyre inflator named the Vayu Nano, designed specifically to address the space constraints faced by bicycle and motorcycle commuters. Weighing just 185 grammes, the device easily fits into a jacket pocket, small bag or scooter storage compartment. Its matte-black finish and short 7.5-centimetre air hose make it suitable for two-wheelers and minor pressure top-ups rather than inflating car tyres from scratch.

The Vayu Nano delivers up to 120 PSI, sufficient for motorcycles requiring around 45 PSI, bicycles needing approximately 35 PSI and standard sports balls. It can fill a tyre from zero to 35 PSI in under five minutes. A digital display shows pressure in PSI or BAR alongside a battery indicator, while preset modes for various inflatables and a manual custom setting are included. An auto shut-off function stops the device once the target pressure is reached to prevent over-inflation.

Power comes from a dual 600 mAh battery setup with USB-C charging, allowing use with existing phone chargers or power banks. A built-in LED light features an SOS mode for low-light conditions. Priced at INR 4,999, the Vayu Nano is available at a launch price of INR 2,999. It comes with a 12-month warranty and can be purchased through the company’s website or at ecommerce websites and standard offline stores.

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Hankook Tire has secured the International Sustainability & Carbon Certification (ISCC) PLUS for its Jiaxing Plant in Zhejiang Province, China. This globally recognised voluntary certification verifies the sustainability of bio-based and recycled materials while ensuring full supply chain transparency. The certification imposes strict verification standards across every stage, from raw material sourcing and manufacturing to the final product output.

The Jiaxing facility’s achievement marks the company’s fourth ISCC PLUS certification. Hankook first earned the distinction for its Geumsan Plant in 2021, becoming the first in the tyre industry to do so. The Rácalmás Plant in Hungary followed in 2023, and the Daejeon Plant received certification in 2025. With this latest addition in China, Hankook has significantly expanded its sustainable manufacturing network across both Asia and Europe.

The Jiaxing Plant has enhanced its production capabilities by increasing the use of sustainable materials and optimising processes. It has established a stable system for products incorporating bio-based and recycled inputs, operating a quality management system based on the mass balance approach. Under its circular economy strategy named E.Circle, Hankook continues to raise the share of sustainable materials. For example, the iON evo tyre, supplied as original equipment for the Porsche Taycan, contains around 45 percent sustainable materials, while the iON GT for the European replacement market has raised that share to up to approximately 77 percent.

Hankook is also applying sustainable materials to tyres used in the FIA World Rally Championship and the ABB FIA Formula E World Championship, reinforcing its technology leadership in global motorsports. Through open innovation with global partners, the company is advancing low-carbon raw materials. Its sustainability efforts have earned it inclusion in the Dow Jones Sustainability Indices World and the highest EcoVadis rating. Looking ahead, Hankook plans to transform the Jiaxing Plant into a key sustainable manufacturing hub in China while continuously upgrading production systems across its global facilities to strengthen supply chain sustainability and ESG competitiveness.

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