LEADER PAPER PRODUCTS Established in 1901, Leader Paper Products has supplied the graphic arts industry with the highest quality converted products for over 115 years. Leader’s specialty is envelopes of all sizes, colors and finishes; including the unusual... like translucent, lined and metallic envelopes. Leader proudly represents the following fine paper mills: Arjowiggins, Domtar, Finch, French Paper Co., International Paper, James Cropper, Mohawk, Monadnock, Whiting Paper Co. (less)