On December 7, 2020, BMC Stock Holdings, Inc. (‘BMC’), caused to be issued a conditional notice of redemption for all of the outstanding 5.50% Senior Secured Notes due 2024 (the ‘Notes’) issued by BMC East, LLC (the ‘Notes Issuer’) providing that the Notes Issuer intends to conditionally redeem all outstanding aggregate principal amount of the Notes on January 4, 2021 (the ‘Redemption Date’). The redemption price is equal to 102.750% of the principal amount of the Notes being redeemed, plus accrued and unpaid interest, if any, thereon to, but excluding, the Redemption Date. The redemption of the Notes on the Redemption Date is conditioned on the completion of the previously announced merger of Boston Merger Sub I Inc., a wholly owned subsidiary of Builders FirstSource, Inc., a Delaware corporation (‘Builders FirstSource’), with and into BMC, with BMC surviving the merger as a wholly-owned subsidiary of Builders FirstSource (the ‘Merger’), pursuant to that certain Agreement and Plan of Merger, dated as of August 26, 2020, by and among Builders FirstSource, BMC and Boston Merger Sub I Inc. (the ‘Redemption Condition’). In BMC’s discretion, the Redemption Date may be delayed until such time as the Redemption Condition shall be satisfied (or waived by BMC in its sole discretion) or the redemption may not occur and the notice of redemption may be rescinded in the event that the Redemption Condition is not satisfied (or waived by BMC in its sole discretion) by the Redemption Date or by the Redemption Date as so delayed. The completion of the Merger is subject to a number of conditions. As a result, there can be no assurance that the redemption will occur on the Redemption Date or at all.