# 14 GTHA firms awarded contracts for Darlington small modular reactor build

Ontario awarded 14 contracts to Greater Toronto and Hamilton Area companies for the first small modular reactor at the Darlington New Nuclear Project. Named suppliers include Hooper Welding (steel for structural modules) and St. Mary's Cement (concrete and batch plant operation).

- Type: Contract
- Announced: 2026-11-09
- Where: Darlington, Ontario, Canada
- Status: announced
- Products: structural steel modules, high-density concrete
- Sectors: [Power Generation Equipment](https://endata.com/sectors/power-generation-equipment.md), [Steel and Metal Products](https://endata.com/sectors/steel-metal-products.md), [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [Ontario Power Generation](https://endata.com/companies/8140.md) (customer)
- [Hooper Welding](https://endata.com/companies/94898.md) (supplier)
- [St. Mary's Cement](https://endata.com/companies/95501.md) (supplier)

## Sources

- [fieldnews.net](https://fieldnews.net/news/14-gtha-firms-land-contracts-for-darlingtons-first-smr-build/), 2026-11-09: "Fourteen Greater Toronto and Hamilton Area (GTHA) companies now hold contracts to build the G7’s first small modular reactor at Ontario’s Darlington New Nuclear Project."

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