Sonoco Products (SON) 10-Q 2018 Q2 Quarterly report

EXHIBIT 15

August 1, 2018

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Commissioners:

We are aware that our reportdated August 1, 2018 on our reviewof interim financial information of Sonoco Products Company, which appears in this Quarterly Report on Form 10-Q, isincorporated by reference in the Registration Statementson Form S-8 (File No. 333-206669, dated August 31, 2015 and as amended on November 1, 2017; File No. 333-206671, dated August 31, 2015; File No. 333-206672, dated August 31, 2015; File No. 333-206673, dated August 31, 2015; File No. 333-206674, dated August 31, 2015; and File No. 333-206675, dated August 31, 2015) and Form S-3 (File No. 333-213559, dated September 9, 2016)of Sonoco Products Company.

Very truly yours,

/s/PricewaterhouseCoopers LLP

Charlotte, North Carolina