 LAKE FOREST, Ill.--BUSINESS WIRE--Packaging Corporation of America NYSE: PKG will hold a conference call on Thursday, January 27, 2022 at 9:00 a.m. Eastern Time to discuss fourth quarter and full year 2021 results. Fourth quarter and full year earnings results will be released after the market closes on Wednesday, January 26, 2022. To access the conference call, please dial 877 370-2526 U.S. and Canada or 720 634-2764 International by 8:45 a.m. Eastern Time. The conference call le 