Dear sir , if your company is buying the packaging material from the place where the people is doing only printing formalites and they supplying the product to your company , but they buy the row material from paper mill, when we are one of the leading manufacturer of row materials which is called paper board(duplex board) then we do printing too as per your demand, we make boxes (cartons) as per your specified size so. Eventually the cost will be down its simple because we manufactur board then make boxes and as well as doing printing too .And most of companies who does printing only and making cartons (boxes) but they buy raw(paper board) from out side then cost will be higher its simple. So if you are interested to discuss then plz forward your reply and samples so i can find out the proper cost of your cartons and return you the quotation as soon as possible