Summit Materials Secondary Offering

Davis Polk advised the sole underwriter in connection with the approximately $200 million secondary offering of 10,000,000 shares of common stock of Summit Materials, Inc. by certain selling stockholders, including affiliates of The Blackstone Group L.P. The common stock is listed on the New York Stock Exchange under the symbol “SUM.”

Based in Denver, Colorado, Summit Materials is a leading vertically integrated materials-based company that supplies aggregates, cement, ready-mixed concrete and asphalt in the United States and British Columbia, Canada. Summit Materials 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 nonresidential end markets. Summit Materials has completed more than 35 acquisitions since its founding and continues to pursue growth opportunities in new and existing markets.

The Davis Polk corporate team included partner Sophia Hudson and associates Ravi P. Ramchandani, Cameron C. Lewis and Yolanda Min. The environmental team included counsel Loyti Cheng and associate Michael Comstock. Counsel Marcie A. Goldstein provided FINRA advice. The tax team included partner Rachel D. Kleinberg and associate Dao Fu. Members of the Davis Polk team are based in the New York and Northern California offices.