Mr. Boxley has been President and Chief Executive Officer of
Boxley Materials Company, a construction materials producer owned
by Summit Materials, Inc. (NYSE: SUM), since 1988. Following the
acquisition of Boxley by Summit, Mr. Boxley was appointed President
of its Eastern Region in 2018. He currently serves as a director of
RGC Resources, Inc. (Nasdaq: RGCO), Pinnacle Financial Partners,
Inc. (NasdaqGS: PNFP) and the Carilion Clinic. Mr. Boxley also
serves on the board of trustees for the Roanoke Regional
Partnership, Business Council of Roanoke, GO Virginia Regional
Council and Episcopal High School, Alexandria, Virginia.