Lafarge Canada Completes Full Transition to Greener Cement in St-Constant Plant


TORONTO, ON, February 15, 2024— Lafarge Canada, a leader in sustainable and innovative building solutions, is proud to announce the completion of another important milestone in the company’s commitment to drive both sustainable and innovative products – the full transition of production from traditional general-use cement to OneCem®, a greener product that results in significantly lower CO2 emissions, at St-Constant Cement Plant in Quebec.

"We are excited to take another crucial step in our sustainability journey. The transition to OneCem production at our St-Constant plant indicates Lafarge Canada's nonstop commitment to driving positive change within our construction industry. Our teams have been engaged in reducing our products’ environmental impact by embracing greener practices and materials," expressed David Redfern, president & CEO of Lafarge Canada (East).

OneCem® is a limestone blended cement manufactured using less clinker than traditional Portland cement. By converting the St-Constant Plant's production to OneCem, Lafarge Canada projects a reduction of about 60,000 tonnes of CO2 emissions in 2024. This equates to CO2 emissions from 16,267 passenger vehicles or 877,972 tree seedlings grown for 10 years.

The St-Constant plant has been at the forefront of driving sustainability and innovation in cement production in Quebec for many years. Building upon its achievements in carbon reduction, the plant has implemented initiatives such as circularity through ECOcycle, as well as collaborating with organizations like CarbiCrete and Patio Drummond to facilitate the production of zero-carbon concrete. This transition to OneCem production at the plant reinforces the company’s decarbonization strategy, widening the availability of environmentally improved options to customers.

"Our team at St-Constant is proud to be taking actions towards sustainability. With this transition, we are not only reducing our carbon footprint but also aligning with our organization's drive to be a leader for sustainable construction throughout Eastern Canada,” added Andrew Stewart, Vice President of Cement, Lafarge Canada (East). “This is a significant development, and we are eager to contribute to the realization of a net-zero future."

By exclusively offering OneCem for general use from its St-Constant cement plant, Lafarge is not only contributing to environmental sustainability but also empowering customers to diminish their own carbon footprint in the built environment.

About Lafarge Canada Inc.

Lafarge Canada is a subsidiary of Holcim, a global leader in innovative and sustainable building solutions. Driven by its purpose to build progress for people and the planet, its 60,000 employees are on a mission to decarbonize building, while improving living standards for all. The company empowers its customers across all regions to build better with less, with its broad range of low-carbon and circular solutions, from ECOPact to ECOPlanet. With its innovative systems, from Elevate’s roofing to PRB’s insulation, Holcim makes buildings more sustainable in use, driving energy efficiency and green retrofitting. With sustainability at the core of its strategy, Holcim is becoming a net-zero company with 1.5°C targets validated by SBTi. 


Adetutu Opeyemi
Lafarge Canada Inc.

Anna Salomao
Lafarge Canada Inc.