Countdown will start changing its signage back to the Woolworths name from next month.

The supermarket has announced the $400 million transformation programme will include a rebrand and a refreshed loyalty scheme.

Countdown and Woolworths Group NZ Manging Director Spencer Sonn says this rebrand is a material investment that will transform the business.

"We've got a lot of old stores we need to upgrade, and then an exciting loyalty program, and of course accompanying all of that is a clear signal of our commitment."

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