# Microsoft agrees to buy 622,500 tons of low-carbon cement from Sublime Systems

Microsoft has agreed to purchase up to 622,500 tons of low-carbon cementitious materials from Sublime Systems' existing and planned factories in Holyoke, Massachusetts, for use in data center projects over two decades.

- Type: Contract
- Announced: 2025-05-28
- Where: Holyoke, Massachusetts, United States
- Status: announced
- Capacity: 622,500 tons
- Products: low-carbon cementitious materials
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [Microsoft](https://endata.com/companies/11213.md) (customer)
- [Sublime Systems](https://endata.com/companies/76508.md) (supplier)

## Sources

- [enr.com](https://www.enr.com/articles/60811-microsoft-to-buy-622-000-tons-of-low-carbon-cement-products-from-sublime), 2025-05-28: "Microsoft Corp. has agreed to purchase up to 622,500 tons of low-carbon cementitious materials from Sublime Systems' first commercial factory in Holyoke, Mass., as well as the full-scale factory it plans to develop in the next six to nine years."

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