EXHIBIT A
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13G with respect to the Common Shares of Layne Christensen Company dated September 19, 2107 is, and any further amendments thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule13d-1(k) under the Securities Exchange Act of 1934, as amended.
Dated: September 19, 2017
| LINDEN CAPITAL L.P. | ||||
| By: Linden GP LLC, its general partner | ||||
| By: | /S/ Saul Ahn | |||
| Saul Ahn, | ||||
| Authorized Signatory | ||||
| LINDEN ADVISORS LP | ||||
| By: | /S/ Saul Ahn | |||
| Saul Ahn, | ||||
| General Counsel | ||||
| LINDEN GP LLC | ||||
| By: | /S/ Saul Ahn | |||
| Saul Ahn, | ||||
| Authorized Signatory | ||||
/S/ Siu Min Wong | ||||
| SIU MIN WONG | ||||
