Supremex, Inc. engages in the fine paper conversion business. It operates through the Envelope and Packaging and Specialty Products segments. The Envelope segment manufactures a range of stock and custom envelopes in an array of styles, shapes, and colors, which allows it to offer products that are designed to the specifications of major national and multinational corporations, resellers, government entities, SMEs, and solutions providers. The Packaging and Specialty Products segment distributes a range of paper-based packaging solutions and specialty products, including folding carton packaging, e-commerce solutions, corrugated boxes, and labels. The company was founded in April 1977 and is headquartered in LaSalle, Canada.