March 20 (Reuters) - Australian copper producer Aeris Resources Ltd AIS.AX said on Wednesday it has offered to buy the CSA copper mine in New South Wales state from global trader and miner Glencore GLEN.L for $575 million.
Aeris said late stage negotiations on the offer were ongoing.
The offer comprises $525 million in cash, $50 million in Aeris shares and a royalty payable to Glencore, it said.