The exclusivity period has been extended till January 24, 2023, upon the consortium's request. This marks the second extension since the talks were first disclosed.

Origin Energy did not specify a reason for the extension.

The consortium is proposing to offer A$9 per share of Origin Energy, a price the board has previously said it would back if a formal proposal was made.

The $10.81 billion deal is also set to be one of the biggest private equity-backed buyouts of an Australian company.

($1 = 1.4345 Australian dollars)

(Reporting by Harshita Swaminathan in Bengaluru; editing by Diane Craft)