Preheater tower at Secil's Maceira plant. Source: Bruno Dias, Secil, via Global Cement Photography Competition 2025.

Global Cement presents its annual analysis of the top 100 cement producers, as well as the top cement-producing nations in 2025, ahead of the release of the Global Cement Directory 2026.

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CO2 emissions

Carbon-14 testing offers a reliable method to quantify the biogenic share of CO₂ emissions, enabling compliance with regulatory schemes and supporting emissions monitoring on the road to net-zero.

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Aerial view of cargo ship in sea: Source: Shutterstock.

Tunley Environmental’s Dr Alejandra Zazueta Lopez looks at how non-EU-based cement producers can prepare effectively for the incoming live phase of the EU’s Carbon Border Adjustment Mechanism (CBAM).

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Queens Carbon’s alternative cement reactor. Source: Queens Carbon.

Queens Carbon is engaged in developing and scaling a range of low-temperature alternative cements and supplementary cementitious materials. It recently closed a US$10m seed funding round, led by Clean Energy Ventures, for an upcoming 2000t/yr pilot facility at Buzzi Unicem USA’s Stockertown cement plant in Pennsylvania.

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