Rio Tinto hikes dividend after slashing costs February 13, 2014 RIO TINTO chief executive Sam Walsh proved his mettle with the miner’s full-year results yesterday, which showed higher earnings and production, larger-than-expected cost savings and a 15 per cent dividend increase. Walsh has slashed costs and divested non-core assets at the FTSE 100 Anglo-Australian firm since he took up the role a year ago, as [...]