Summit Materials Announces Pricing and Upsizing of $300 Million of Additional 6.125% Senior Notes Due 2023

DENVER

Summit Materials, Inc. (NYSE:SUM, “Summit”) announced today that its indirect subsidiaries Summit Materials, LLC and Summit Materials Finance Corp. (the “Issuers”, and, together with Summit, “the Company”) finalized the terms of the previously announced offering of additional 6.125% Senior Notes due 2023, which was successfully upsized from $275.0 million to $300.0 million (the “notes”). Summit anticipates that consummation of the offering will occur on November 19, 2015 and intends to use the proceeds from the offering to redeem the remaining $153.8 million aggregate principal amount of the Issuers’ outstanding 10 ½% Senior Notes due 2020 and to pay fees and expenses incurred in connection with this offering, with any remaining amounts to be used for general corporate purposes, which may include the repayment of certain other indebtedness.

The notes will be issued as additional notes under the indenture governing the Issuers’ 6.125% Senior Notes due 2023 that were issued on July 8, 2015 (the “existing notes”). The notes are expected to be treated as a single series with the existing notes and will have the same terms as those of the existing notes, except that (i) the notes will be subject to a separate registration rights agreement and (ii) the notes will be issued initially under CUSIP numbers different from the existing notes. Holders who exchange their notes in a future registered exchange offer will receive registered notes that are expected to share a single CUSIP number with the existing notes, and it is expected that such notes and the existing notes will thereafter be fungible.

The notes to be offered have not been registered under the Securities Act of 1933, as amended (the “Securities Act”), or any state securities laws and, unless so registered, may not be offered or sold in the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and applicable state securities laws. The notes will be offered, by the initial purchasers, only to persons reasonably believed to be qualified institutional buyers in reliance on Rule 144A under the Securities Act and non-U.S. persons in transactions outside the United States in reliance on Regulation S under the Securities Act.

This press release is being issued pursuant to Rule 135(c) under the Securities Act, and it is neither an offer to sell nor a solicitation of an offer to buy any securities and shall not constitute an offer to sell or a solicitation of an offer to buy, or a sale of any securities in any jurisdiction in which such offer, solicitation or sale is unlawful.

About Summit Materials

Summit Materials is a leading vertically integrated construction materials company that supplies aggregates, cement, ready-mixed concrete and asphalt in the United States and British Columbia, Canada. Summit is a geographically diverse, aggregates-based business of scale that offers customers a single-source provider of construction materials and related downstream products in the residential, nonresidential, and public infrastructure end markets. Summit has completed more than 35 acquisitions since its founding and continues to pursue growth opportunities in new and existing markets.

Forward-Looking Statements and Information:

This press release contains “forward-looking statements” within the meaning of the federal securities laws, which involve risks and uncertainties. Forward-looking statements include all statements that do not relate solely to historical or current facts, and you can identify forward-looking statements because they contain words such as “believes,” “expects,” “may,” “will,” “should,” “seeks,” “intends,” “trends,” “plans,” “estimates,” “projects” or “anticipates” or similar expressions that concern our strategy, plans, expectations or intentions. Any and all statements made relating to the macroeconomic outlook for our markets, potential acquisition activity, our estimated and projected earnings, margins, costs, expenditures, cash flows, sales volumes and financial results are forward-looking statements. These forward-looking statements are subject to risks and uncertainties that may change at any time, and, therefore, our actual results may differ materially from those expected. We derive many of our forward-looking statements from our operating budgets and forecasts, which are based upon many detailed assumptions. While we believe that our assumptions are reasonable, it is very difficult to predict the impact of known factors, and, of course, it is impossible to anticipate all factors that could affect our actual results.

In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by us or any other person that the results or conditions described in such statements or our objectives and plans will be achieved. Important factors could affect our results and could cause results to differ materially from those expressed in our forward-looking statements, including but not limited to the factors discussed in the section entitled “Risk Factors” in our prospectus filed with the SEC on August 11, 2015. Such factors may be updated from time to time in our periodic filings with the SEC, which are accessible on the SEC’s website at www.sec.gov.

We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or otherwise, except as otherwise required by law.

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Summit Materials, Inc.
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