DENVER, Oct. 12, 2023 /PRNewswire/ -- Summit Materials, Inc. (NYSE:SUM, ", Summit", or the ", Company", ))), a leading vertically integrated construction materials company, today announced that it will release third quarter 2023 financial results after the market closes on Wednesday, November 1, 2023. A conference call will be held on Thursday, November 2, 2023, at 11:00 a.m. eastern time (9:00 a.m. mountain time) to review Summit's financial results, discuss recent events and conduct a question-and-answer session.

A webcast of the third quarter results conference call and accompanying presentation materials will be available in the Investors section of Summit's website at investors.summit-materials.com or at the following link: https://events.q4inc.com/attendee/991348107

To participate in the live teleconference for third quarter 2023 financial results:

Domestic Live:	1-888-330-3416
International Live:	1-646-960-0820
Conference ID:	1542153

To listen to a replay of the teleconference, which will be available through November 9, 2023:

Domestic Replay:	1-800-770-2030
International Replay:	1-647-362-9199
Conference ID:	1542153

About Summit Materials, Inc.

Summit Materials is a leading vertically integrated materials-based company that supplies aggregates, cement, ready-mix concrete and asphalt in the United States and British Columbia, Canada. Summit is a geographically diverse, materials-based business of scale that offers customers a single-source provider of construction materials and related downstream products in the public infrastructure, residential and non-residential end markets. Summit has a strong track record of successful acquisitions since its founding and continues to pursue growth opportunities in new and existing markets. For more information about Summit Materials, please visit www.summit-materials.com.

Contact Information

Andy Larkin

VP, Investor Relations

Summit Materials, Inc.

andy.larkin@summit-materials.com

720-618-6013

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SOURCE Summit Materials, Inc.

Summit Materials Announces Third Quarter 2023 Results Conference Call Date