Associated Co-operative Creameries (ACC), formerly CWS Milk Group, was a subsidiary and operating division of The Co-operative Group. It operated dairies throughout the United Kingdom and also doorstep-delivered milk to households. By 2004, Associated Co-operative Creameries Limited, trading as ACC Milk, was the UK's fourth largest dairy business, when it was sold to yet another co-operative, Dairy Farmers of Britain of Nantwich, Cheshire, forming Britain's largest milk co-operative, and the UK's third largest milk processor. ACC moved its registered address to Nantwich at that time.