 Alpharetta, GA, April 26, 2021 GLOBE NEWSWIRE -- Schweitzer-Mauduit International, Inc. NYSE: SWM will issue a press release announcing the Companys first quarter 2021 results after the market closes on May 5, 2021 and hold a conference call to discuss results on May 6, 2021. SWM will use a presentation to accompany its conference call. The presentation can be found on the Companys Web site in advance of the earnings conference call. The presentation can also be accessed via the earnings conference call webcast. 