SHARES in steel giant Iscor extended early losses on Thursday on news that recent floods will impact negatively on its production. The counter, which was down almost 3%, slid further to be 3,19% lower at R22,75 on the news. The company said that floods are expected to result in a loss of 500000 tons of mine ore production at its Sishen mine and a further 250000 tons of lost output was seen at its Thabazimbi iron ore mine.