US: A new finish mill has officially been commissioned at the Durkee cement plant. The facility held a ribbon-cutting ceremony to celebrate the occasion. The upgrade will increase the plant’s cement production capacity by 210,000t/yr without increasing clinker production or associated CO₂ emissions. The company said the new finish mill enhances its ability to deliver consistent, high-performance cement.

Sweden: The Swedish Energy Agency has awarded US$12.5m to Boliden under its Industrial Leap initiative to support the development of a low-carbon cement alternative derived from iron-rich residual materials. The product allows for partial replacement of limestone in cement. Boliden is building an industrial demonstration plant to produce, test and verify the new material, which is based on byproducts from its own operations. Boliden estimates that the technology could cut value-chain emissions by around 600,000t/yr of CO₂ if fully implemented across its operations.

“Demonstrating innovative new technology to manufacture products with lower carbon emissions is fully in line with the purpose of the Industrial Leap. By reusing materials in new products instead of depositing them, the project also contributes to more circular use of materials,” said Klara Helstad, Deputy Head of the Department for Research, Innovation and Business Development at the Swedish Energy Agency.

US: Furno Materials has signed an agreement with ready-mix concrete producer Maschmeyer Concrete for the use of its compact modular cement kiln technology. Maschmeyer Concrete plans to operate the kilns using its 90,000t/yr of ‘waste’ concrete as a feedstock. The company will build an initial 50,000t/yr-capacity mini cement plant in Florida. The partners are currently conducting site analysis and a feasibility study for the project.

This latest deal brings Furno Materials’ total commitments to 295,000t/yr across announced and unannounced projects. The sale remains contingent on the successful deployment of its first commercial-scale reactor with concrete producer Ozinga in Chicago, Illinois.

US: Amrize has announced the commissioning of a production expansion at its cement plant in Ste. Genevieve, Missouri, increasing the plant’s capacity by 600,000t/yr to reach a total of 5.0Mt/yr. The expansion forms part of Amrize’s broader US$700m investment plan for 2025, aimed at strengthening operations and supporting domestic customers.

The company said that the project reinforces its commitment to ‘Made in America’ manufacturing, supporting local jobs and communities while ensuring high-quality cement supply for builders across the country.