March 2 (Reuters) - Rio Tinto (LON:RIO) Ltd RIO.AX :
* RIO TINTO - ATO HAS ISSUED RIO TINTO LIMITED WITH AMENDED ASSESSMENTS OF A$359.4M (US$279.8M) PRIMARY TAX AND A$47.1M (US$36.7M) OF INTEREST.
* RIO TINTO - AMENDED ASSESSMENTS IS IN ADDITION TO MORE THAN A$8.4BN (US$6.4BN) OF AUSTRALIAN INCOME TAX PAID DURING RELEVANT PERIOD
* RIO TINTO - ASSESSMENTS RELATE TO DENIAL OF INTEREST DEDUCTIONS ON AN ISOLATED BORROWING USED TO PAY AN INTRAGROUP DIVIDEND IN 2015