EAST MILLINOCKET, Maine – The new Great Northern Paper Co. LLC mill on Main Street is back in operation producing newsprint, company officials said Friday.

A boiler malfunction that occurred on Tuesday was repaired by Thursday morning. It did not affect customer relations, company officials said.

The mill has been making paper since Oct. 17, a month and a day after Gov. Paul LePage announced that Cate Street Capital of Portsmouth, N.H., had purchased the mill in escrow from Brookfield Asset Management of Toronto. The deal closed later that month.

Brookfield had closed the mill on April 1, laying off 415 workers. About 215 were hired when the mill restarted. Company officials have said they hope to restart the town mill’s paper recycling business, and the creation of glossy supercalendered paper at its sister mill in Millinocket, if conditions permit.

No timeline has been set for those restarts, but company officials have said they hope to see them in several months.

Cate Street has also said it has a full year of orders for the East Millinocket mill and hopes to begin producing torrefied wood at both facilities by early 2013, hiring another 220 workers.