# Amrize breaks ground on modernization of Saint-Constant cement plant

Amrize broke ground on a modernization of its cement plant in Saint-Constant, Quebec, to expand capacity by 300,000 tonnes to 1.2 million tonnes annually and reduce carbon emissions by over 40% by 2035.

- Type: Expansion
- Announced: 2026-06-19
- Where: Saint-Constant, Quebec, Canada
- Status: under construction
- Capacity: 1.2 million tonnes annually
- Products: cement
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [Amrize](https://endata.com/companies/15973.md)

## Sources

- [amrize.com](https://www.amrize.com/us/en/media/newsroom/amrize-to-modernize-montreal-area-cement-plant-to-be-most-advanc.html), 2026-06-19: "Our investment in Québec will modernize our cement plant into the most advanced and sustainable plant in Eastern Canada."
- [cement.ca](https://cement.ca/newsroom/amrize-to-modernize-montreal-area-cement-plant/), 2026-06-24: "This project represents the future of decarbonized cement in Quebec and in Canada."
- [cdrecycler.com](https://www.cdrecycler.com/news/amrize-expands-canada-cement-plant/), 2026-07-06: "Our investment in Quebec will modernize our cement plant into the most advanced and sustainable plant in eastern Canada."
- [news.alphastreet.com](https://news.alphastreet.com/amrize-amrz-expands-saint-constant-capacity-in-quebec-cement-push/), 2026-07-13: "Amrize (AMRZ) said on June 19, 2026 that it broke ground on the modernization of its Saint-Constant cement plant outside Montreal, calling the project the largest investment in the Canadian cement industry over the last decade."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.