Hibbing Taconite (HTC) began production in 1976 and made its initial shipment in January of 1977. HTC is ISO certified in Quality and Environmental Management Systems and is a joint venture owned by Cleveland-Cliffs (85.3%) and US Steel (14.7%). It has an annual rated capacity of 8.0 million gross tons a year.

Hibbing operations consist of an open pit truck and shovel mine, a concentrator that utilizes single stage crushing, autogenous (AG) mills and magnetic separation to produce a magnetite concentrate, which is then delivered to an on-site pellet plant. From the site, pellets are transported by BNSF rail to a ship loading port at Superior, Wisconsin.