X0206 3 2017-02-09 0 0001688941 Foundation Building Materials, Inc. FBM 0001267446 GRAYKEN JOHN P 2711 NORTH HASKELL AVENUE SUITE 1700 DALLAS TX 75204 0 0 1 0 0001697284 LSF9 Cypress Parent 2 LLC 2711 NORTH HASKELL AVENUE SUITE 1700 DALLAS TX 75204 0 0 1 0 Common Stock 29974239 I See footnote These shares are held directly by LSF9 Cypress Parent 2 LLC, which is indirectly controlled by John P. Grayken. Each of the reporting persons disclaims beneficial ownership of the shares except to the extent of such reporting person's pecuniary interest therein. /s/ William D. Young, attorney-in-fact for John P. Grayken 2017-02-09 /s/ Kyle S. Volluz, President of LSF9 Cypress Parent 2 LLC 2017-02-09