Attached files
| file | filename |
|---|---|
| 8-K - 8-K - Advanced Emissions Solutions, Inc. | a8-kitem401111617.htm |
Exhibit 16.1
November 20, 2017
Securities and Exchange Commission
Washington, D.C. 20549
Commissioners:
We have read Advanced Emissions Solutions, Inc.’s statements included under Item 4.01 of its Form 8-K filed on November 20, 2017 and we agree with such statements concerning our firm.
/s/ Hein & Associates LLP
Hein & Associates LLP