SXP Supremex Inc

Supremex Inc. (“Supremex” or the “Company”) (TSX: SXP), a leading North American manufacturer and marketer of envelopes and a growing provider of paper-based packaging solutions, will release its results for the first quarter ended March 31, 2023, after markets close Tuesday, May 9, 2023. A conference call to discuss these results will be held on Wednesday, May 10, 2023, at 8:00 a.m. (Eastern Time).

Conference Call:

A live broadcast of the Conference Call will be available on the Company’s website, in the Investors section under Webcast.

To participate (professional investment community only) or to listen to the live conference call, please dial the following numbers. We suggest that participants call-in at least 5 minutes prior to the scheduled start time:

• Confirmation number:	98010853
• Local participants (Toronto area), dial:	416 764-8658
• International participants, dial:	416 764-8658
• North-American participants, dial toll-free:	1 888 886-7786

A replay of the conference call will be available on the Company’s website in the Investors section under Webcast. To listen to a recording of the conference call, please call toll-free 1 877 674-7070 or 416-764-8692 and enter the code 010853. The recording will be available until Wednesday, May 17, 2023.

Annual Meeting of Shareholders:

Supremex will hold its annual meeting of shareholders on the same day, May 10, 2023 at 11:00 a.m., at the office of Stikeman Elliott LLP located at 5300 Commerce Court West, 199 Bay Street, Toronto, Ontario, M5L 1B9.

About Supremex

Supremex is a leading North American manufacturer and marketer of envelopes and a growing provider of paper-based packaging solutions. Supremex operates eleven manufacturing facilities across four provinces in Canada and six manufacturing facilities in four states in the United States employing over 1,000 people. Supremex’ growing footprint allows it to efficiently manufacture and distribute envelope and packaging solutions designed to the specifications of major national and multinational corporations, direct mailers, resellers, government entities, SMEs and solutions providers.

For more information, please visit www.supremex.com.

Contact:Martin Goulet, M.Sc., CFAMBC Capital Markets Advisorsmgoulet@maisonbrison.com514 731-0000, extension 229