 LAKE FOREST, Ill.-- BUSINESS WIRE --Packaging Corporation of America NYSE: PKG will hold a conference call on Thursday, January 26, 2023 at 9:00 a.m. Eastern Time to discuss fourth quarter and full year 2022 results. The conference call leader will be Mark Kowlzan. Fourth quarter and full year earnings results will be released after the market closes on Wednesday, January 25, 2023. 