Australian businesses will be the "big winners" when the revived Trans-Pacific Partnership trade deal involving 11 countries is signed in six weeks, Trade Minister Steve Ciobo said on Wednesday after senior trade officials in Japan struck a breakthrough to revive the mega pact.

Japan's Minister of Economy Toshimitsu Motegi said the new agreement, to be called the Comprehensive and Progressive Agreement for Trans-Pacific Partnership (CPTPP), or TPP-11, will be signed on March 8, as Prime Minister Shinzo Abe foreshadowed in a weekend interview with the Australian Financial Review.

Mr Abe has claimed credit for reviving the mega trade pact - first negotiated when Barack Obama was president - after it suffered near-death when Donald Trump sensationally withdrew the US as part of his America First pledge.

It left the fate of the deal in the hands of the governments of Australia, Brunei, Canada, Chile, Japan, Malaysia, Mexico, New Zealand, Peru, Singapore and Vietnam.