13G Filing: Shapiro Capital Management LLC and Entegris Inc (ENTG)

Cusip No. 29362U104 13G Page 7 of 7 Pages

AGREEMENT RELATIVE TO THE
FILING OF SCHEDULE 13G

THIS AGREEMENT, made as of the 10th day of October, 2017, by and between
Shapiro Capital Management LLC, a Delaware Limited Liability Company (an
investment adviser registered with under the Section 203 of the Investment
Advisers Act of 1940) (the “Adviser”), and Samuel R. Shapiro, Chairman, director
and majority shareholder of the Adviser (“Affiliated Person”);

WITNESSETH:

WHEREAS, the Affiliated Person and the Adviser are both persons required,
pursuant to 17 C.F.R.240.13d-1, to file a statement containing the information
required by Schedule 13G with respect to the following Issuer:

Entegris, Inc.
Cusip No. 29362U104

WHEREAS, the Affiliated Person and the Adviser are each individually
eligible to use Schedule 13G; and

WHEREAS, the Affiliated Person and the Adviser are each responsible for the
timely filing of said Schedule 13G and any amendments thereto, and for the
completion and accuracy of the information concerning each, but not on the
behalf of any other, unless any knows or has reason to know that the information
concerning any other is inaccurate; and

WHEREAS, the Schedule 13G attached hereto identifies all the persons and
contains the required information with regard to the Affiliated Person and the
Adviser so that it may be filed with the appropriate persons, agencies and
exchanges on behalf of each of them; and

WHEREAS, the Affiliated Person and the Adviser desire to file the Schedule
13G attached hereto on behalf of each of them.

NOW, THEREFORE, in consideration of the mutual agreements and covenants set
forth herein, the parties hereto agree that the Schedule 13G attached hereto
shall be executed by the Affiliated Person, in his individual capacity and as
Chairman of the Adviser, and filed with the appropriate persons, agencies and
exchanges, on behalf of both of them.

IN WITNESS WHEREOF, the undersigned have executed this Agreement Relative
to the Filing of Schedule 13G as of the day, month and year first above written.

SAMUEL R. SHAPIRO
Samuel R. Shapiro, in his
individual capacity and as
Chairman of Shapiro Capital Management LLC