RESPONSIBLE SUPPLY CHAIN
TARMAC OPEN INNOVATION PIPELINE
In 2025, Tarmac continued its commitment to accelerating sustainability by working with innovators through our Open Innovation Pipeline, with a focus on three priority areas that are critical to a net zero future: decarbonisation, circularity, and water. Of all the innovations submitted to the pipeline, several promising concepts will move into partnered development during 2026. The solutions presented covered a wide range of applications, including retrofit measures to improve fuel efficiency on mobile plant and asset level energy management systems. They also explored new circularity approaches and opportunities to valorise lower value materials to support a more resource efficient, lower carbon construction sector.
As these solutions go into development, we will continue to seek lower carbon technologies that cut emissions across the value chain, circular solutions that transform waste into valuable resources, and innovations that improve water efficiency and strengthen climate resilience. Through access to our operational network, we offer a real world test environment in which we can trial and scale emerging ideas.
SUPPLY CHAIN COLLABORATION DELIVERING INNOVATION
Tarmac has formed a new partnership with Material Evolution [HE2.1]to pilot MevoCem, an innovative ultra low carbon cement produced using a patented alkali fusion process that removes heat from the manufacturing stage and enables the use of industrial byproducts as reactive materials. Delivered through the CRH Ventures Sustainable Building Materials Accelerator, a programme designed to scale market ready innovations that lower construction related emissions, improve circularity and advance next generation binder technologies, this collaboration strengthens engagement across our value chain.
As an early adopter within the CRH group, Tarmac is helping move this breakthrough cement technology from concept into real world application. By combining Material Evolution’s pioneering chemistry with our readymix expertise, Tarmac is trialling next generation cement at commercial scale. This forward looking partnership reflects our commitment to working closely with supply chain innovators to accelerate progress toward net zero, deepen shared learning, and unlock the potential future of lower carbon solutions for the construction industry.
SUPPLY CHAIN ENGAGEMENT IN THE MIDLANDS
Our Midlands Sustainability Event held in Solihull marked the first of many opportunities in 2025 to deepen collaboration across our value chain. The event brought together customers, partners and stakeholders to explore practical solutions for a lower carbon built environment. The day showcased our NextGEN 2030+ innovations and highlighted how working collectively on decarbonisation, circularity and climate resilience can accelerate progress toward net zero.
Expert sessions on water management, digital tools including PAVE Technology Solutions, and lower carbon materials such as CEVO asphalt and concrete, demonstrated the importance of shared innovation. A joint presentation with National Highways on the A64 project showed how partnership and advanced materials deliver real world carbon savings. We look forward to continuing this momentum with our supply chain, sharing ideas, driving innovation, and taking action together to support wider sustainability goals and a more resilient future.
COLLECTIVE ACTION ON WATER MANAGEMENT
Tarmac is committed to working collaboratively across its supply chain to deliver sustainability improvements and address the long-term challenges facing road infrastructure. At Interchange 25, Tarmac brought together local authorities, materials providers, consultants and contractors to collaborate on innovative solutions. The focus was to explore how, in a changing climate and with increasing urban growth, road infrastructure and stormwater systems must tackle runoff to prevent failures, reduce pollution and mitigate environmental impact.
The discussion highlighted shared priorities, such as managing polluted highway runoff, strengthening flood resilience, embedding nature-based solutions, and addressing funding pressures, all of which require coordinated action and shared responsibility across the value chain. By convening partners from across the sector, Tarmac is helping to build a collective, forward-looking approach to more sustainable water management that supports more resilient networks and delivers on broader environmental ambitions.
PARTNERING FOR PROGRESS
In 2025, Tarmac was proud to be named Local Council Roads Innovation Group’s (LCRIG’s) official Sustainability Partner, building on a six year relationship during which we’ve worked closely with local authorities to accelerate sustainability across the highways sector. Throughout the partnership, we collaborated on initiatives, contributed to LCRIG’s flagship events, and shared insights on the future of lower carbon, resilient highway materials. The partnership also underscored our commitment to supporting local authorities on their journey towards a more sustainable future, ensuring we understand their evolving needs and developing the products and services required to meet them.
A key example of this is Tarmac’s advancement of a new generation of lower carbon, biogenic and long-life asphalt technologies. These are designed to help reduce carbon footprints, capture carbon, and significantly extend pavement life compared to traditional materials. By working collaboratively, Tarmac and LCRIG helped shape a forward-looking agenda for the sector, supporting innovation, shared learning and practical progress toward a more sustainable and robust highways network.
SUPPLY CHAIN COLLABORATION FOR OFFSHORE WIND
Throughout 2025, Tarmac deepened its engagement with the UK’s renewable energy sector, showcasing how our materials, expertise and supply chain partnerships can support the growth of offshore wind. At Floating Offshore Wind 2025, we highlighted the role of Tarmac Marine in responsibly supplying marine aggregates for major coastal and offshore infrastructure. We also convened industry leaders at our Concrete Solutions Breakfast to discuss how the UK can unlock the potential of Concrete Floating Wind and build a resilient domestic supply chain.
We continued this dialogue at the Energy Engineered in the UK workshop, collaborating with partners Great British Energy and ETZ Ltd to explore how innovation, regional capability and supply chain development can accelerate the transition to clean energy. These engagements reflect our ongoing commitment to supporting the renewable sector through practical collaboration, more sustainable materials and shared innovation.
SUPPLY CHAIN PARTNER OF THE QUARTER
Collaboration across our supply chain continues to be a major focus for Tarmac, striving for consistent service, shared standards, and strong operational performance year‑on‑year. This ongoing approach was celebrated in 2025 when our Mortars team was recognised as one of Taylor Wimpey’s Supply Chain Partners of the Quarter for Q3. The title was awarded following an evaluation across pre‑ and post‑delivery performance, health and safety practices, and day‑to‑day operational consistency. Feedback from 22 Taylor Wimpey Business Units informed the decision, marking the second time in five quarters that Tarmac received the accolade. We look forward to continuing this strong partnership and working together to drive further improvement and deliver sustainable value across the supply chain in 2026.
SOURCING AND SELLING WITH INTEGRITY
Responsible sourcing remains a priority for Tarmac, and we continue to uphold high standards across our supply chain. Our suppliers work to the CRH Supplier Code of Conduct, which sets clear expectations on ethics, human rights, health and safety, and environmental stewardship. Through our due diligence process, we collect digital confirmations of the Code and gather information on labour practices, safety performance, and wider workforce issues to strengthen visibility of our supply chain and manage potential supply chain risk. Internally, our people follow the CRH Business Code of Conduct, reinforcing that ethical behaviour and doing the right thing ‘begins with me’.
In 2025, we once again maintained our BES 6001 ‘Excellent’ rating across all product groups, providing independent assurance that our materials are sourced and manufactured responsibly. This certification helps minimise supply chain risks and gives customers confidence in the sustainability and integrity of the products they use.
FROM EXTERNAL INSIGHT TO IN-HOUSE EXPERTISE
Building on the strong foundations laid by our External Sustainability Panel, Tarmac has expanded its in-house technical capability across the clean energy and renewables landscape. The Panel’s challenge and guidance helped shape the maturity of our approach and enabled us to develop the dedicated specialists now leading our work in offshore wind, nuclear, grid connectivity and energy systems. These roles, including our Wind Solutions Director, Nuclear Commercial Director, Business Development Director, Chief Technical Lead for Energy and Defence, and Energy Strategy Manager, ensure we have the technical leadership needed to deliver the next generation of more sustainable, lower carbon solutions.
With this strengthened expertise, our teams now play an active role in industry discussions on renewable infrastructure, supply chain resilience, and the decarbonisation of UK manufacturing and construction. By combining the groundwork established by our Panel with the deep capability now embedded in the organisation, Tarmac is well positioned to support a strong, lower carbon built environment and the transition to a more sustainable energy future.
LOOKING FORWARD
In 2026, we will continue to strengthen collaboration across our value chain by evolving our Open Innovation Pipeline through a series of focused campaigns with suppliers, including packaging, logistics, maintenance, repairs and operations, and other key categories. We will also deepen engagement with suppliers, supporting them to assess and understand their Scope 1 and 2 emissions as part of wider progress being made on Scope 3. These efforts will help drive shared innovation, improve transparency, and accelerate progress toward shared goals of a more sustainable future.
