Exhibit 99.1
JOINT FILING AGREEMENT
In accordance with Rule 13d-1(k)(1)(iii) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a Statement on Schedule 13D (including additional amendments thereto) with respect to the shares of Common Stock, $0.10 par value, of Trecora Resources, a Delaware corporation. This Joint Filing Agreement shall be filed as an Exhibit to such Statement.
Dated: September 9, 2021
| The Radoff Family Foundation | |||
| By: |
/s/ Bradley L. Radoff | ||
| Name: | Bradley L. Radoff | ||
| Title: | Director | ||
|
/s/ Bradley L. Radoff | |
| Bradley L. Radoff |
| JEC II Associates, LLC | |||
| By: |
/s/ Michael Torok | ||
| Name: | Michael Torok | ||
| Title: | Manager | ||
| The K. Peter Heiland 2008 Irrevocable Trust | |||
| By: |
/s/ Michael Torok | ||
| Name: | Michael Torok | ||
| Title: | Trustee | ||
| /s/ Michael Torok | |
| Michael Torok |