# ROCKWOOL breaks ground on $175M stone wool plant in Wallula, Washington

ROCKWOOL North America broke ground on a new stone wool manufacturing facility in Wallula Gap Business Park, Washington. The $175 million plant, its fifth in North America and first in the western US, will support 125 local jobs and feature electric melting technology.

- Type: New facility
- Announced: 2026-04-29
- Where: Wallula Gap Business Park, Walla Walla County, Washington, United States
- Value: $175.0M
- Jobs: 125
- Status: under construction
- Products: stone wool insulation
- Sectors: [Construction Materials](https://endata.com/sectors/construction-materials.md)

## Companies

- [ROCKWOOL North America](https://endata.com/companies/91613.md)

## Sources

- [rockwool.com](https://www.rockwool.com/north-america/about-us/news/2026/rockwool-breaks-ground-in-wallula/), 2026-04-29: "This groundbreaking represents an important step forward for ROCKWOOL as we expand our presence in the United States."

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