An independent Millicent supermarket will keep its doors closed as usual on the public holiday for Australia Day on Wednesday.

Fosters Foodland is one of two Millicent businesses which are usually prohibited from opening on public holidays as they are still regulated under decades-old legislation.

However, Premier Steven Marshall announced the shackles would be temporarily lifted for all traders across the state.

“All shops in South Australia, regardless of their size or location, will be allowed to open on Australia Day for the first time,” Premier Marshall said.

“Our changes will allow shoppers in the suburbs to enjoy the same opportunities as those in the regions and CBD.

“My message is simple – support a local business in your area this Australia Day.”

However, Fosters Foodland manager Dave Foster said his Kentish Place business would not be taking up this opportunity to trade between 11am and 5pm.

Mr Foster said he had informed the Millicent Business Community Association and Woolworths of his decision.

“I believe my employees deserve to have a break on Wednesday as we have been so busy,” Mr Foster said.

“First we had the Christmas rush and then we had the COVID rush.”