Rubber certainly has its role to play in forest landscapes across the world, with natural rubber plantations having risen as a substantial basis of deforestation. One element that addresses deforestation concerns is the correct certification of rubber – be it natural or synthetic. International Sustainability & Carbon Certification (ISCC), a globally leading certification system, works with the objective of providing sustainability solutions for fully traceable and deforestation-free supply chains, inter alia involving the rubber industry. ISCC was one of the presenters at the Tire Technology Expo 2022 at Hannover, Germany, and Dr Jan M Henke, Director, ISCC, threw light on the nitty-gritty of certifications in the rubber industry, their clients in the tyre and rubber industry and more, in an interaction with Tyre Trends.

Can you tell us about your global sustainability scheme?
Our global sustainability and carbon certification scheme has certified companies in more than 100 countries. We certify entire supply chains from farms to plantations and forestry, and also the point of origin of waste and residues, biogenic and fossil waste. This is also covering rubber and natural rubber. Moreover, we cover biogenic waste and residues, including fossil waste, like carbon black, which is, again, used in the rubber industry. We also certify pyrolysis, where recycled mixed plastic waste can help produce synthetic rubber out of the pyrolysis oil. And we certify the entire supply chain, sustainability of raw material.

What is Meo’s role?
Meo initiated ISCC in a multi-stakeholder process a long time ago. It once was a Meo project and went on to become an operations and certification scheme. It was even recognised by the European Commission and some other authorities. It later got segregated from Meo, and ISCC is governed by the ISCC Association with more than 200 members.

So, what role does Meo play in this in case of certification?
Certification is always by independent, third-party certification bodies. ISCC is the standard development. Today’s ISCC was once a project of Meo. It then went on to become independent and operational, and was no longer a project but an individual entity running and further developing and improving the certification scheme.

The operations of the certification system, database, registration, qualification, training programme, integrity programme, the website and all the day-to-day business is done by ISCC. We are currently incorporating 45 certification bodies that are actually doing the on-site audits based on the ISCC standard.

Is ISCC recognised by the European Union?
Yes, it is being used in many sectors, like in bio energy, bio fuel, renewable transport fuels etc. In fact, ISCC is also recognised by the European Commission and by companies based on their sustainability standards and different industry initiatives.

Hence, ISCC is active on a really broad scale, covering different types of raw materials, natural rubber being one of them. We are also covering waste and residues for pyrolysis and their outputs. We then go to all the different end markets, which can be polymers, rubber, tyres, packaging, all types of plastic products, bio energy or any type of renewable fuels, aviation fuels, maritime fuels etc. This is global and is being used in more than 100 countries.

Tyre companies are talking about sustainability, but the larger part of the industry is of small stakeholders, especially in the natural rubber segment, where traceability and accountability are the main issues. How do you see this?
That’s a big challenge, especially in rubber production. At the cultivation level, there are a lot of small holders. There also exist large plantations that are easier to implement and certify. However, it’s definitely a bigger challenge with the small holders; it always depends on how well they are organised, whether there are certain structures, cooperatives or some central units.

Can you tell us about the certification of natural rubber?
The certification of natural rubber is definitely possible. Palm oil is maybe another example where the setup is quite similar sometimes. Also, with respect to the small holders, sometimes the companies are the same. Furthermore, we are very active in the palm oil sector with ISCC. We now also see a demand for natural rubber sustainability certification.

Is there a different process for getting certified in the rubber industry or is it a standard process?
It’s a standard process. It works on plantation. In fact, it works more or less the same as for palm plantations. But you certainly need to make sure that all the small holders reach a certain level, which is difficult. So starting out, bigger plantations may be easier because it’s easier for them to properly prepare for the certification audits. And then, you need to involve more farmers, step by step.

Who decides the standard process to get the certifications?
ISCC develops the standards and the requirements in the multi-stakeholder process. It then comes down to a company saying that it wants to become certified, use ISCC and also make certain claims and communications to its customers and stakeholders. They then reach out to a certification body, that is cooperating with ISCC. Following this, the certification body will do the audit on site – the third-party auditor will also make a decision on the issuance of the certificate.

Can tyre manufacturers get different certifications? For instance, one for natural rubber and another one for synthetic rubber? Or do they get one for all?
If tyre manufacturers source raw material for manufacturing from natural rubber but also synthetic rubber and everything under ISCC, then it’s one audit. Then the auditor would look into aspects of the volume of natural rubber being used that has been certified, although upstream. If one buys from certified suppliers and if the same auditors check, then aspects like the share of the certified synthetic rubber being used, the share of carbon black, etc. are taken into account. And finally, everything can be put together and a certain claim can be made.

Can tyre companies get a separate certificate for natural rubber?
Yes, they can. They can have separate certificates for natural and synthetic rubber both, or even of everything together. As for the final tyre, let’s say, if it’s 20 percent natural rubber and 20 percent synthetic rubber (40 percent of the tyre), then they can make certain sustainability claims on use of sustainable, circular materials etc.

What is the value of a certification?
It’s no deforestation – that’s key when it comes to natural rubber. When you certify, ‘no deforestation’ is the core requirement and deforestation is not allowed under ISCC. It is about additional environmental and social human rights criteria. This fits fine in this part of ISCC’s sustainability standard. And then it’s certainly about traceability in the supply chain, all the way in the end to the final tyre. And if this is established, then you can certainly make claims about the rubber or the final tyre, saying that it has been sustainably produced, based on sustainably sourced raw materials etc.

Plus, if you do this in a smart way, then you can actually cover the natural and synthetic rubber. Natural rubber and synthetic rubber are both very important parts of the final tyre. Both can be covered under ISCC.

Deforestation is a big issue, mainly in Southeast Asian and African countries. How difficult is it to keep an eye on that?
It’s not always easy to handle. Deforestation is not allowed under ISCC; there is a cut-off date of January 2008. If there was deforestation after January 2008, one cannot become certified. However, replanting or a change from palm to rubber is not considered as deforestation.

For example, if you have a palm plantation and if you cut it and plant rubber after 25 years, then that’s not deforestation. That’s just normal replanting.

Also, ISCC is certainly doing assessments, supported by remote sensing. Our core principle is no deforestation, which is very important to ISCC and its stakeholders. ISCC is not just us doing the operations in Cologne; there’s the ISCC Association for the multi-stakeholder dialogue. It has over 200 members from entire supply chains, industries, plantation companies, mineral oil, chemical companies, converters etc. We also have research organisations from different regions involved. In fact, also a number of non-governmental organisations are members of the ISCC Association.

The association meets annually and makes important strategic decisions and elects the ISCC Board. Due to the representation of the research sector and non-governmental organisations, there is quite a good balance of what people want and further development.

Can you tell us about the commercial benefits involved in having a certification?
There is a big value in it. It reduces sustainability risks for companies, helps to establish monitoring, protects the license to operate and has commercial value. For example, the OEMs ask for more sustainable products or lower greenhouse gas emissions. They all have climate neutrality commitments in place and need to start delivering step-by-step now; they need to show what are the activities that they are engaged in and how those improve sustainability in the overall supply chain. Here, ISCC certification can be used.

How do you maintain transparency in certification as a third party?
There is an annual audit. The certificate is valid for one year and then there is a re-certification. The company needs to provide evidence in every re-certification that the rules are being followed. And if they are not, a renewal of the certificates is not possible.

We certainly have quality management and training for companies and the auditors as well, who conduct on-site audits. What’s more, we have our own integrity programmes, where we send out our own auditors. These auditors work for ISCC and double-check the performance of the companies and the work of third-party auditors. Therefore, this integrity programme is key. We have the website where all the certificates are being published and the entire standard is public.

Do you help companies improve their sustainability supply chain?
No, we don’t consult. At ISCC, we are not involved in supporting the companies in order to improve. We have the standard and we conduct the training for companies. The preparation for the audit is not where ISCC is involved; it’s independent from that type of work. And the certification bodies are not allowed to consult in parallel either. ISCC is the independent standard that is used to certify that companies fulfil the sustainability requirements.

What are the other segments that you cover in the tyre industry?
It’s the entire supply chain. Petrochemical industries, tyre manufacturers etc. can all be covered. This also includes everything from plantations to the end product in the tyre industry.

Which is the easiest and the toughest one to certify?
All elements of the supply chain need to be covered.

This can sometimes be a challenge in the beginning, so as to convince your suppliers and also get certified. But, in truth, we have more than 6,000 certificates under ISCC. So there are already a lot of players that have valid certificates, and now this is starting to move into the space of rubber and tyre manufacturers.

Can you tell us about your clients in the rubber and tyre industry?
We have requests from many tyre producers right now. Some producers are certified already. Plus, we have requests for carbon black and first requests for natural rubber. We see the number of requests increasing, and we do have first certificates and first registrations from tyre producers. So we expect this to rise further as the industry needs to show compliance with their sustainability and climate neutrality commitments.

We see the entire tyre industry now targeting sustainability. So how do you find more opportunities and what’s your plan to get more client support?
ISCC started to get really further engaged in the rubber and tyre industry about a year ago; the industry has started understanding the standards, participating in ISCC trainings, joining our stakeholder events etc. Therefore, step by step, they got to know ISCC better and what it could do for them. They have now even started to get involved and do certifications, including reaching out all the way to the cultivation of natural rubber.

Are you going to focus on the Asian market?
Yes. In fact, we already have a few hundred certificates in Malaysia, Indonesia and other countries in the region. These markets are truly important. Our other key markets are North America and Europe, while we are also active in Africa and South America.

We are, eventually, trying to do more and convince people to become certified, show compliance to sustainability requirements, engage in a continuous improvement approach to become more sustainable and then allow manufacturers to really make claims.  

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Prinx Chengshan presented its Chengshan brand at the 140th China Import and Export Fair, which opened in Guangzhou on 15 October. The Canton Fair, known as China's leading trade event, has a history of nearly seven decades and functions as an indicator of the country's foreign trade while offering Chinese brands a platform to demonstrate innovation and meet international buyers.

At the fair, the company highlighted products including the ET16 wide-body dump truck tyre, whose wide and deep transverse tread grooves provide strong traction for smooth starts on soft, uneven mining terrain and help lower risks such as wheel slip and vehicles becoming stuck. The ELD12 loader tyre was also featured for its wear resistance and load-bearing capacity across demanding conditions, with resistance to excessive deformation under heavy loads supporting stable and safe equipment operation.

The participation coincides with Chengshan Group's 50th anniversary and Prinx Chengshan's accelerating global expansion. Founded in Rongcheng, Shandong Province, in 1976, the company now operates three production bases, two R&D centres, three sales centres and four technical centres worldwide. On 9 October, its Malaysia plant produced its first tyre less than 11 months after construction began, marking progress in overseas production and supply chain resilience.

Prinx Chengshan has also increased investment in the off-the-road tyre segment, operating a green and smart OTR tyre factory in Shandong and achieving mass production of giant tyres in sizes including 27.00R49, 30.00R51 and 33.00R51, while rolling out its first 57-inch giant tyre, size 46/90R57. Its OTR products serve mining, construction, ports, airports, agriculture and industrial operations, offering system solutions for global agricultural mechanisation, engineering projects and resource development.

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Continental played a decisive role in the world record achieved by Volkswagen's Mission Efficiency concept vehicle, supplying a specially developed concept tyre. During the drive, the near-production electric vehicle consumed just 7.51 kilowatt-hours per 100 kilometres including charging losses, or 6.89 kWh excluding them. The RID – Rekord-Institut für Deutschland certified the result on 24 August 2026, after a 1,278.36-km journey from Wolfsburg to Vienna under real-world conditions. The trip required only one charging stop and ended with 164 kilometres of remaining range.

The concept tyre achieves a rolling resistance of 4.9 kg per metric tonne, roughly 25 percent below the threshold for the EU tyre label's highest Class A rating. Because about one-fifth of an electric vehicle's propulsion energy is consumed by overcoming tyre rolling resistance, this reduction is a major factor in extending range. Tyres therefore directly influence energy consumption and the distance possible on a single battery charge.

(Photo: Volkswagen AG)

Rolling resistance arises because a tyre deforms each time it contacts the road during every revolution. That deformation draws energy otherwise used for propulsion, and around 20 percent of an electric vehicle's battery energy is spent merely to overcome this effect. Continental's concept tyre builds on the EcoContact 7, a production tyre already known for exceptionally low rolling resistance.

For the record drive, the tyre was modified to Volkswagen's specifications, producing a design that deforms even less as it rolls, cutting energy consumption further and increasing range per charge. Two elements proved especially important. The sidewall follows the same design principle used in the EcoContact 7, delivering stability without raising rolling resistance. Meanwhile, the tread compound was specially tailored to the tyre's other components, working alongside the carcass and tread pattern to minimise energy losses.

(Photo: Volkswagen AG)

An additional advantage came from a new manufacturing process. During production, the initially soft green tyre is hardened in a mould under heat and pressure through vulcanisation, but Continental did not heat it uniformly as in conventional production. Instead, different areas were exposed to different temperatures, with the tread cured differently from the sidewall. This allowed each zone's properties to be optimised more precisely, resulting in even lower rolling resistance for the tread.

Rolling noise also shaped the tyre's development, and its tread pattern was specifically designed to achieve particularly low noise levels. Engineers varied the spacing and angles of the tread blocks so that the noises they generate partially overlap and cancel each other out, following a principle similar to noise-cancelling headphones. For the Mission Efficiency vehicle, this means the tyre improves efficiency while also ensuring a notably quiet driving experience, an aspect of growing importance because tyre noise becomes far more noticeable without an internal combustion engine.

The ID. Polo production car on which the Mission Efficiency is based already comes fitted with Continental's EcoContact 7 as standard, but the record project took the two companies further. Continental developed the tyre in close collaboration with Volkswagen's vehicle and aerodynamics engineers from a very early stage. The collaboration extended into the vehicle's design, with the tyre's colour-accented sidewall incorporating styling elements from the concept.

During the record drive, the vehicle set three benchmarks: the world's most aerodynamic near-production vehicle with a drag coefficient of 0.158, the most efficient four-seat electric vehicle in its class in a single controlled drive and the most economical near-production four-seat electric vehicle on an officially documented long-distance real-world drive. Largely based on production components from the ID. Polo, including its battery and drivetrain, the Mission Efficiency demonstrates the efficiency gains possible through targeted improvements to existing electric-vehicle technologies.

Dr Christian Strübel, Continental’s expert in rolling resistance for passenger-car tyres, said, “The record shows that increasing the range of electric cars does not necessarily require larger batteries. Significant opportunities lie in the successful interaction of all vehicle components. Tyres make a crucial contribution. Together with Volkswagen, we’ve demonstrated what’s possible when vehicle, aerodynamics and tyre development are aligned from the very beginning.”

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Liberty Tire Recycling has announced that its employees, business partners and supporters raised USD 195,000 in 2026 for Blessings in a Backpack, a national nonprofit providing weekend food to school-aged children facing hunger. The announcement coincided with National Childhood Hunger Awareness Day and World Food Day, marking the third consecutive year of the company's partnership with the organisation.

Funds were generated through the Liberty Cares Charity Golf Tournament and contributions from partners. The collaboration originated from employee feedback, as workers expressed a desire to support a cause addressing both children's needs and hunger – two areas Blessings in a Backpack serves.

Thomas Womble, CEO, Liberty, and Charlie Alutto, Chair of the Board, at the 2026 Liberty Cares Charity Golf Tournament.

In late October, employees at five locations – Santa Fe Springs, California; Midlothian, Texas; Minerva, Ohio; Jackson, Georgia; and Portland, Oregon – will pack 6,500 weekend meal bags for local programmes. Additionally, staff companywide will create handwritten notes of encouragement for the bags. Liberty previously raised USD 87,805 in 2024 and USD 132,785 in 2025, bringing its three-year total to over USD 415,000.

Liberty employees in Oregon write notecards for Blessings In A Backpack.

Thomas Womble, CEO, Liberty Tire Recycling, said, “In three years, we have raised over USD 400,000 and packed more than 16,000 food packs for kids in need. This is only possible with the employees at Liberty giving their time and effort to this project, and customers and partners committing their time and resources. Thank you to everyone who made this possible – I am proud to be part of this team.”

Alexis Hartman, Manager of Corporate Partnerships, Midwest, Blessings in a Backpack, said, "Thanks to the generosity of Liberty, their leadership, customers and employees as well as the outings’ donors and sponsors, over USD 195,000 was raised this year to benefit the mission and work of Blessings in a Backpack. We couldn’t be more grateful to the entire Liberty community for the care, compassion and kindness provided year after year to support children in need of our services. Thank you from the bottom of our backpacks!”

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Hankook Tire marked a significant design milestone on 15 October at the Capitol Theatre in Singapore, where the company was honoured during the Red Dot Award 2026 ceremony for Design Concept. The tyre manufacturer celebrated two Best of the Best accolades, with design team members present to represent the winning projects.

The recognition stemmed from the competition’s Design Concept category, where Hankook secured two top honours and four Winner awards. The winning entries, announced in August, included the i-Flex Gen 2, an airless concept tyre, and Medi Buddy, a futuristic medical mobility design. The i-Flex Gen 2 represents an evolution of the company’s airless tire research since 2015, introducing an industry-first circumferential spoke structure that improves low-noise performance and driving stability while enhancing visual appeal for future electric and autonomous vehicles.

Medi Buddy emerged from an industry-academic partnership with Korea Design Membership Plus, a student talent programme managed by the Korea Institute of Design Promotion. Operating under the Mobile AI 2030 theme, the concept combines autonomous driving and artificial intelligence into an interactive smart IV system aimed at engaging hospitalised children, reducing their fear of hospitals and offering emotional comfort.

The award-winning concepts will be displayed in a special exhibition at the Red Dot Design Museum Singapore. The Red Dot Design Award ranks among the world’s three major design honours, alongside Germany’s iF Design Award and the US-based International Design Excellence Awards. Hankook previously became the first Korean company to earn the Red Dot Luminary honour in 2015, followed by the tyre industry’s first iF Gold Award in 2016 and an IDEA Bronze Award in 2017, completing a sweep of the top three global design awards.

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