AUGUSTA — Cate Street Capital has finalized its purchase of mills in Millinocket and East Millinocket,  Gov. Paul LePage announced today.

“With hundreds of people starting to get back to work, it’s a great day for Maine,” LePage said in a statement.

He said he appreciated the hard work of the mills’ former owner,  Brookfield Asset Management, and members of his administration who worked on the sale.

Cate Street Capital, based in Portsmouth, N.H., invests in green energy projects,

The Millinocket mill closed in September 2008. The East Millinocket mill closed on April 1. The closure of the two mills cost about 600 jobs.