Attached files
file | filename |
---|---|
EX-31.4 - EX-31.4 - Summit Materials, Inc. | ex31410q22021.htm |
EX-32.2 - EX-32.2 - Summit Materials, Inc. | ex32210q22021.htm |
EX-99.1 - EX-99.1 - Summit Materials, Inc. | sum-20210703_d2.htm |
EX-31.3 - EX-31.3 - Summit Materials, Inc. | ex31310q22021.htm |
EX-31.2 - EX-31.2 - Summit Materials, Inc. | ex31210q22021.htm |
EX-95.1 - EX-95.1 - Summit Materials, Inc. | exhibit95110q22021.htm |
EX-32.4 - EX-32.4 - Summit Materials, Inc. | ex32410q22021.htm |
EX-32.3 - EX-32.3 - Summit Materials, Inc. | ex32310q22021.htm |
EX-32.1 - EX-32.1 - Summit Materials, Inc. | ex32110q22021.htm |
EX-31.1 - EX-31.1 - Summit Materials, Inc. | ex31110q22021.htm |
EX-10.4 - EX-10.4 - Summit Materials, Inc. | ex10410q22021.htm |
EX-10.3 - EX-10.3 - Summit Materials, Inc. | ex10310q22021.htm |
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