The 2009 agreement gave 34% of the copper-gold project to the Mongolian government and 66% to Ivanhoe Mines, now the Rio Tinto-controlled Turquoise Hill Resources. Turquoise Hill was hit with a US$155 million bill from the Mongolian Tax Authority in January 2018 and the government cancelled a power agreement for the massive project the following month. Turquoise Hill has paid $5 million to settle unpaid taxes, fines and penalties for accepted items and is in discussions to resolve the tax dispute but has said it would seek dispute resolution through international arbitration as "the next step" if the talks were unsuccessful.