Under the offer, Zhaojin Capital, a unit of the Tietto's second largest shareholder Zhaojin Mining Industry Co Ltd, will acquire the shares in the company at A$0.58 per share.
Zhaojin Mining currently holds 7.02% of the shares in the gold explorer.
There is no certainty that the proposal will result in a binding proposal, Tietto said, adding that it is willing to recommend the proposal to its shareholders.
The deal comes at a time of elevated merger and acquisition activity in Australia with Chile's SQM buying the rest of Azure Minerals that it doesn't already own for $900 million.
($1 = 1.5793 Australian dollars)
(Reporting by John Biju in Bengaluru; Editing by Diane Craft and Lisa Shumaker)