EX-15 2 a2q17exhibit15.htm EXHIBIT 15 Exhibit
Exhibit 15





July 28, 2017


Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549

Commissioners:

We are aware that our report dated July 28, 2017 on our review of interim financial information of W. R. Grace & Co. for the three and six month periods ended June 30, 2017 and June 30, 2016 and included in the Company's quarterly report on Form 10-Q for the quarter ended June 30, 2017 is incorporated by reference in its Registration Statements on Form S-8 dated May 12, 2000, April 28, 2011, May 2, 2013, February 27, 2014 and February 23, 2017.


Very truly yours,



/s/ PricewaterhouseCoopers LLP
Baltimore, Maryland