 MEDINA, Ohio--BUSINESS WIRE--RPM International Inc. NYSE: RPM today announced that Michael J. Laroche, chief financial officer of its Specialty Products Group SPG operating segment, has been appointed vice president, controller and chief accounting officer for RPM, effective November 1. He will succeed Keith Smiley, current RPM vice president of finance and controller, who previously announced he will retire from his role in October. Laroche joined SPG in 2016 as controller and was promot 