# Microsoft signs deal to buy 623,000 tons of low-carbon cement from Sublime Cement

Microsoft has signed a contract with Sublime Cement to purchase 623,000 tons of low-carbon cement over six to nine years. The cement will be produced at Sublime's new factory in Holyoke, Massachusetts, which is expected to start operations in 2026.

- Type: Contract
- Announced: 2025-05-24
- Where: Holyoke, Massachusetts, United States
- Status: announced
- Capacity: 30,000 tons per annum
- Products: low-carbon cement
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [Microsoft](https://endata.com/companies/11213.md) (customer)
- [Sublime Cement](https://endata.com/companies/93132.md) (supplier)

## Sources

- [datacenterdynamics.com](https://www.datacenterdynamics.com/en/news/microsoft-to-purchase-623k-tons-of-low-carbon-cement-from-sublime-cement/), 2026-07-22: "To reach net zero, the world needs innovative technology solutions like Sublime Cement."

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