Hibbing Taconite Company (14.7% ownership) – this mining company based in Hibbing, Minnesota has total iron taconite reserves estimated at 158 million tons of product with an expected mine life of 19 years. Hibbing’s rated production capacity amounts to 8.1 million tons annually, of which the U. S. Steel Canada group takes delivery of 1.2 million tons of iron ore pellets, reflecting its ownership share of production.

Tilden Mining Company (15% ownership) – this mining company based in Ishpeming, Michigan produces from a complex ore body of hematite ore (35% iron) and magnetite (24% iron). Total reserves are estimated at 265 million pellet tons with an expected mine life of 34 years. Tilden’s rated production capacity amounts to 7.8 million tons, of which the U. S. Steel Canada group takes delivery of about 1.2 million tons of iron ore pellets, reflecting its ownership share of production.

Wabush Mines (44.6% ownership) – with mining operations in Wabush, Labrador and Pointe Noire, Quebec, this joint-venture company has total reserves of hematite iron ore estimated at 51 million tons. Wabush has a rated production capacity amounting to 6 million tons annually, of which the U. S. Steel Canada group takes delivery of about 2.7 million tons of iron ore pellets, reflecting its ownership share of production.