LONDON (AP) -- Australian mining company Rio Tinto PLC has extended the deadline for acceptance of its $4 billion cash offer for Riversdale Mining Ltd.
Rio Tinto had set a deadline of Wednesday to accept an offer of $16.50 a share for Riversdale, an African coal miner, but on Monday it said it was moving the deadline to next Monday, March 28.
Rio Tinto is seeking acceptances representing more than 50 percent of Riversdale's shares. So far, it has 35 percent.