There is also alarm over a long-term contract CSN is believed to have agreed with CVRD, the world's second-biggest iron ore producer, governing the sale of ore from CSN's own mine, Casa de Pedra, to CVRD. Corus shareholders, who will account for 62% of the merged group, fear the agreement will end in a messy court case. The Corus-CSN merger is the subject of a non-binding agreement and a shareholder vote on the deal is expected to be held in the first quarter of next year.