Exhibit 99.1
JOINT FILING AGREEMENT
Each of the undersigned hereby agrees that this statement on Schedule 13D is being filed with the Securities and Exchange Commission on behalf of each of the undersigned pursuant to Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
Date: September 14, 2017
| ESTERA TRUST (JERSEY) LIMITED in its capacity as trustee of THE RYFOLD TRUST | |||
| By: | /s/ Brendan Dowling | ||
| Name: | Brendan Dowling | ||
| Title: | Director | ||
| ESTERA TRUST (JERSEY) LIMITED | |||
| By: | /s/ Brendan Dowling | ||
| Name: | Brendan Dowling | ||
| Title: | Director | ||
| RYFOLD LIMITED | |||
| By: | /s/ Brendan Dowling | ||
| Name: | Brendan Dowling | ||
| Title: | Director | ||
| GIVOLON LIMITED | |||
| By: | /s/ Brendan Dowling | ||
| Name: | Brendan Dowling | ||
| Title: | Director | ||
