Clearlake Capital SC 13G/A Smart Sand / CLEARLAKE CAPITAL ownership change

Exhibit 1

JOINT FILING AGREEMENT

In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13G to which this joint filing agreement is attached, and have duly executed this joint filing agreement as of the date set forth below.

This agreement may be executed in any number of counterparts, each of which shall be deemed an original.

EXECUTED this 8th of February, 2021

CLEARLAKE CAPITAL GROUP, L.P.
By:	/s/ John Cannon
Name:	John Cannon
Attorney-in-Fact
JOSÉ E. FELICIANO
By:	/s/ John Cannon
Attorney-in-Fact
BEHDAD EGHBALI
By:	/s/ John Cannon
Attorney-in-Fact