Columbia Burlap & Bag Company and Koch Bag & Supply Company are suppliers of plastic bags, retail packaging, burlap bags, nursery supplies, poly vacuum pouches and custom packaging. Columbia Burlap's focus is burlap products. Koch Bag & Supply Co. sells all types of bags, carrying a full line of polyethylene bags, trash bags, recloseable bags, paper bags, merchandise bags, and polypropylene bags.