O'Key Group SA is a retail store operator. It deals with trading food such as fresh fruits, vegetables, and bakery products through the medium of hypermarkets, supermarkets, and discount stores. The company's operating segment includes O'Key and DA. It generates maximum revenue from the O'Key segment. The O'Key segment includes a chain of modern-style hypermarkets under the O'KEY brand and the DA segment includes a chain of discounter stores in Moscow and the Central region.