MONTREAL— Supremex Canada,s largest envelope manufacturer has bought Durabox Paper  of Montreal. Durabox manufactures short run corrugated boxes. They sell through a network of dealers. Durabox 
is the largest supplier of pizza boxes to independent pizzerias. they also manufacture frozen meat boxes and other corrugated die cut products.

    Suremex has been diversifing into the label and packaging business. Supremex has around $300 million in sales and is a Canadian public trades conpany.