Heidelberg Materials Forges Ahead with Turkish Majority Stake and Green Innovation Push

Heidelberg Materials boosts stake in Turkish cement firm Akçansa, partners with SSAB for low-carbon binders, and raises €600M green bond for plant modernisation.

The German building materials giant is making moves on multiple fronts, securing a controlling position in a key emerging market while simultaneously advancing its decarbonisation agenda through research partnerships and sustainable financing. The flurry of activity underscores a strategy that treats expansion and environmental targets as complementary rather than competing priorities.

A Deeper Footprint in Turkey’s Economic Heartland

Heidelberg Materials is acquiring an additional 39.72% stake in Turkish cement producer Akçansa from Sabanci Holding. Once the transaction clears regulatory hurdles, the group will hold 79.44% of the company. Akçansa operates three cement plants, 26 ready-mix concrete facilities, five quarries and five port terminals, all concentrated in Turkey’s most economically vibrant regions — the Sea of Marmara, Aegean and Black Sea areas. According to the company, these zones account for roughly 70% of Turkish economic output. The move is designed to unlock operational synergies and expand supply capacity in a high-growth geography.

Research Collaboration Targets Low-Carbon Binders

On 22 April, Heidelberg Materials announced a four-year research partnership with Swedish steelmaker SSAB. The two companies will develop alternative binders using electric arc furnace slag, an industrial byproduct that could partially replace the emissions-intensive clinker production process. Sweden’s growth agency is chipping in around €1.7 million to support the project. For a company whose core product generates significant process-related CO2 emissions, tapping into such slag represents a critical lever on the path to carbon neutrality.

3D Printing and Digital Construction Take Centre Stage

The group is also showcasing its technological evolution at Milan’s Brera Design District, where it has erected a large-scale installation made from 3D-printed concrete. Designed by Italian architect Mario Cucinella and produced by robotics firm Erratic, the structure consists of roughly one thousand interlocking concrete modules. Heidelberg Materials developed a special mortar for the project that boasts twice the compressive strength of conventional concrete. A low water-cement ratio enhances durability, polymer fibres reduce cracking risk, and over 15% of the raw materials come from recycled sources. After the exhibition, the city will break the installation into ten smaller pieces and place them in public squares across Milan from May onwards.

Green Bond Raises €600 Million for Plant Modernisation

To fund its climate transition, Heidelberg Materials has placed a new green bond worth €600 million. The notes mature in 2036, and proceeds will be channelled directly into plant upgrades, including investments in alternative fuels and carbon capture equipment. Meanwhile, the company is pushing digitalisation across its operations, with plans to deploy over 100 trucks equipped with the autonomous transport system Pronto globally.

Stock Hovers Near Key Moving Average Ahead of Earnings

Heidelberg Materials shares are trading at roughly €187, just above their 50-day moving average of €184.66, signalling a modest uptick from the March trough. Still, the stock is down nearly 16% year-to-date and remains well off its 2026 high of €239.70. Two key dates loom: first-quarter results are due on 6 May, followed by the annual general meeting on 13 May, where management has proposed raising the dividend to €3.60 per share — a 9% increase from the prior year.