Canadian grocery retailer Alimentation Couche-Tard has said it will expand its presence in the US Midwest with the acquisition of 43 convenience stores from Clark Retail Enterprises, which filed for bankruptcy protection last autumn. Montreal-based Couche-Tard, which operates stores under the Couche-Tard, Mac's and Dairy Mart banners, said it expect to complete the US$24.5m deal in August after receiving court approval, reported Reuters.