A Canadian company that builds and services electrical transmission lines is expanding to the Loring Commerce Centre in Limestone.

Greystone Power Services LLC of Grand Falls, New Brunswick, will set up a U.S. location in a 42,000-square-foot space at Loring, developer Green 4 Maine announced Wednesday.

Additionally, Caribou businesses Circle B Farms and Norstar Appliances are expanding into space on the campus.

Green 4 Maine purchased 450 acres and 49 buildings at the Commerce Centre in 2023 . Along with the Loring Development Authority, Green 4 Maine aims to revitalize the former base, bringing industry, jobs and housing — along with opportunities for local small businesses — to an area that has seen economic uncertainty since the base closed in 1994.

The three new businesses w

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