SUMMIT MATERIALS,INC. (NYSE:SUM) Files An 8-K Submission of Matters to a Vote of Security Holders

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SUMMIT MATERIALS,INC. (NYSE:SUM) Files An 8-K Submission of Matters to a Vote of Security Holders

Item 5.07. Submission of Matters to a Vote of Security
Holders.

On May17, 2017, Summit Materials,Inc. (the Company) held its 2017
annual meeting of stockholders. At the annual meeting,
stockholders voted on the matters disclosed in the Companys
definitive Proxy Statement on Schedule 14A filed with the
Securities and Exchange Commission on March30, 2017 (the Proxy
Statement). The final voting results for the matters submitted to
a vote of stockholders were as follows:

Proposal No.1 Election of Directors

At the annual meeting, the Companys stockholders elected the
persons listed below as ClassII directors for a three-year term
expiring at the Companys 2020 annual meeting of stockholders or
until their respective successors are duly elected and qualified:

Votes For

VotesWithheld

Broker Non-Votes

Ted A. Gardner

72,126,636

28,277,827

5,859,290

John R. Murphy

67,021,131

33,383,332

5,859,290

Steven H. Wunning

99,876,338

528,125

5,859,290

Proposal No.2 Ratification of Independent Registered
Public Accounting Firm

The Companys stockholders ratified the appointment of KPMG LLP as
the Companys independent registered public accounting firm for
the fiscal year ending December30, 2017.

Votes For

Votes Against

Votes Abstained

Broker Non-Votes

105,718,445

27,059

518,249

N/A

Proposal No.3 Non-Binding Vote on Executive
Compensation

The Companys stockholders approved, in a non-binding advisory
vote, the compensation paid to the Companys named executive
officers as disclosed in the Proxy Statement.

Votes For

Votes Against

Votes Abstained

Broker Non-Votes

96,558,490

3,308,428

537,545

5,859,290


About SUMMIT MATERIALS, INC. (NYSE:SUM)

Summit Materials, Inc. is a construction materials company. The Company operates through three segments: West, East and Cement. As of December 31, 2016, the Company had operations in 21 states in the United States and in British Columbia, Canada. The Company’s materials include aggregates, which it supplies across the United States, and in British Columbia, Canada, and cement, which it supplies along the Mississippi River from Minneapolis to New Orleans. Within its markets, it offers construction materials and related downstream products through its vertical integration. In addition to supplying of aggregates to its customers, the Company also uses its materials internally to produce ready-mix concrete and asphalt paving mix. Its construction materials operations consists of aggregates production, including crushed stone and construction sand and gravel, cement and ready-mixed concrete production, and asphalt paving mix production.

SUMMIT MATERIALS, INC. (NYSE:SUM) Recent Trading Information

SUMMIT MATERIALS, INC. (NYSE:SUM) closed its last trading session up +0.79 at 27.26 with 2,145,621 shares trading hands.