Exhibit 99
AGREEMENT RELATING TO FILING OF
JOINT STATEMENT PURSUANT TO
RULE 13d-1(k) UNDER
THE SECURITIES EXCHANGE ACT OF 1934
The Undersigned agree that this Amendment No. 16 to the Statement of Schedule 13G/A to which this Agreement is attached is filed on behalf of each of them.
| Date: February 8, 2018 | By: | /s/ Michael L. Middleton | |
| Michael L. Middleton | |||
| By: | /s/ Sara Middleton | ||
| Sara Middleton |