Antofagasta acquires Duluth Metals for $85 million.Published in:Mining Engineering, 2014, v. 66, n. 12, p. 10Publication type:Article
Merger in Minnesota approved; One stage toward development cleared, but permitting hurdles remain.Published in:Mining Engineering, 2011, v. 63, n. 4, p. 20Publication type:Article
Minnesota merger; Duluth Metals to acquire Franconia Minerals for $75 million.Published in:Mining Engineering, 2011, v. 63, n. 2, p. 18Publication type:Article