Brochu and Vachon entered service in 1973 for Quebec Cartier Mining (now ArcelorMittal) in Port-Cartier - a busy iron ore and grain transshipment port. They are 3200 bhp Voith-Schneider tugs.
See photo here: Boatnerd, Robert Talbot photo
Groupe Ocean has assigned Ocean Yvan Desgagnes and Ocean Ross Gaudreault to work in Port-Cartier. Both are 5,000 bhp ice class, fire fighting tugs, built in 2010 and 2011 respectively.
They can also call for assistance from tugs based in Sept-Iles, which is nearby.