Denton County has been adding industrial and logistics development along the AllianceTexas corridor for years. Most of it is warehouses, distribution centers, and light manufacturing. The facility breaking ground on Harmonson Road in Northlake is something different.

MP Materials is America's only fully integrated rare earth producer, operating the country's only rare earth mining facility and running the entire production chain from mining and processing to metallization and magnet manufacturing. Their new MP Materials 10X Rare Earth Magnet Factory in Northlake is designed to produce 10,000 metric tons of NdFeB rare earth magnets per year, the kind used in electric motors, wind turbines, and defense systems.

What Is Getting Built

Construction began in June 2026 on a 120-acre site that MP purchased for $80 million from Hillwood, Ross Perot Jr.'s development company. The site sits within the AllianceTexas footprint, one of the largest master-planned industrial developments in the country. Production is expected to start in 2028.

The project will bring more than 1,500 manufacturing and engineering jobs to Northlake and Denton County. CEO James Litinsky was direct about why Texas was chosen: "10X is about building industrial strength at a scale the United States has not seen in generations, and the exceptional talent and infrastructure in North Texas make it possible."

The U.S. Department of War is a partner in the project, holding a 15 percent stake in the public-private arrangement. The state of Texas, Denton County, and City of Northlake approved a combined incentive package of roughly $200 million, including more than $66 million in grants from the Texas Enterprise Fund and Texas Semiconductor Innovation Fund.

Why Rare Earth Magnets Matter to Texas

Rare earth magnets are small components with large implications. They are in electric vehicles, industrial motors, wind power systems, and a wide range of defense applications. Until recently, the supply chain for these magnets ran almost entirely through China. The 10X factory is designed to change that for the United States, building domestic production capacity at a scale that has not existed in this country before.

For North Texas, the practical meaning is jobs, wages, and a manufacturing presence that reaches beyond distribution work. The Alliance corridor has been a strong draw for logistics companies, and this facility adds a different kind of anchor, one that requires skilled technical workers who build careers rather than cycling through shifts.

MP's existing Independence facility in Fort Worth has been in commercial production since 2025. The Northlake campus extends that footprint significantly, and having both sites within 10 miles of each other creates a rare earth supply chain cluster that did not exist here two years ago.

What Changes for Denton County Families

When a facility of this size breaks ground in a county, the effects go beyond the direct job count. Contractors, suppliers, local service businesses, and housing all feel the growth. Denton County has been one of the fastest-growing counties in Texas for several years, and this investment confirms that industrial employers see the region's workforce as ready for this kind of work.

The address is Harmonson Road, AllianceTexas, Northlake TX 76247. Construction is active now. Find out more about the project and what it means for North Texas at the MP Materials Investor News of the site selection and facility plans.