 The neutrality of the commission's report has been challenged by some observers, who argued that the report was partly written by OAO Galurgia, a company affiliated to Uralkali.Other Russian sources claimed that Uralkali failed to undertake all the necessary work in order to fill the holes in the mines, which may have directly caused the appearance of the sinkholes.According to the local newspaper "Inaya Gazeta", Rybolovlev decided to split in two the budget allocated to the hole-filling, which resulted in an insufficient filling of the mine chambers.