# Concrete Materials Co.

- Headquarters: United States


## Customers, suppliers and deals

- [Knife River Corp.](https://endata.com/companies/31517.md): acquired by, 1×, latest 2018-10-08
- [MDU Resources](https://endata.com/companies/31516.md): acquired by, 1×, latest 2018-10-04

## Announcements (2)

- 2018-10-08: [Knife River acquires Sweetman Construction Co. / Concrete Materials Co.](https://endata.com/announcements/33962-knife-river-acquires-sweetman-construction-co-concrete-materials-co) (Acquisition · Sioux Falls, South Dakota, United States · 260 jobs)
- 2018-10-04: [MDU Resources acquires Sweetman Construction and Concrete Materials](https://endata.com/announcements/33915-mdu-resources-acquires-sweetman-construction-and-concrete-materials) (Acquisition · Sioux Falls, South Dakota, United States · 260 jobs)

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