An international conglomerate owed $27.5 million by Solid Energy has issued a High Court challenge to the arrangement which the state-owned mining company's creditors voted through last month.
Cargill International, which owned Spring Creek underground mine in a joint venture with Solid Energy until 2012, said the action was the only way in which its "genuine grievances" would be heard.
Cargill, which has 155,000 employees in 68 countries across different industries, says it has lost US$42.4 million ($63.5 million) in the mine and the amount it is owed is for undelivered volumes of coal from Spring Creek Mining Company.
It says Spring Creek agreed to pay it the $27.5 million as part of a 2012 settlement agreement, with Solid Energy guaranteeing the obligation.
The ailing Solid Energy was placed in voluntary administration in August after concluding it had no real prospect of refinancing $239 million of debt facilities due to mature next year.