MADAWASKA, Maine – Twin Rivers Paper Company  announced that it has finalized the sale of Plaster Rock Lumber Corporation, its softwood lumber mill in Plaster Rock, New Brunswick, to eastern Canadian lumber manufacturer Groupe Lebel.  The sale advances Twin Rivers’ strategy of investing in and growing its core business of specialty and kraft paper production. The transaction includes a long-term supply agreement for Groupe Lebel to provide Twin Rivers Paper with by-product chips and biomass utilized by Twin Rivers’ pulp and cogeneration operations in Edmundston, New Brunswick. …Tyler Rajeski, CFO of Twin Rivers Paper said… “Groupe Lebel is the right partner for our Plaster Rock mill.” …Groupe Lebel employs 1,250 people in sixteen municipalities in Quebec, two in Ontario and one in the state of Maine in the United States.