Cliffs Natural to temporarily idle operations at Pinnacle mine Cliffs Natural Resources disclosed earlier in a regulatory filing that on June 25 the company issued a Worker Adjustment and Retraining Notification Act notice to all employees of Pinnacle Mining Company, a wholly-owned subsidiary of the company, the United Mine Workers of America and state and local government agencies, that it intends to temporarily idle its operations at the Pinnacle mine as a result of current poor market conditions for metallurgical coal. The notice begins the 60-day notice period that must be given prior to temporarily idling operations under the WARN Act. If market conditions do not improve, it is expected that the idling of the Pinnacle mine could last more than six months beginning on or about August 25.
Cliffs Natural finalizes energy agreement with We Energies in U.P. of Michigan Cliffs Natural (CLF) has finalized an interim power agreement with Wisconsin Energy's (WEC) utility energy segment We Energies for its Michigan operations. The company stated that this is "one key step in a series of contemplated short and long-term agreements that are essential to the viability of its iron ore mines in the Upper Peninsula".