EXHIBIT A JOINT FILING AGREEMENTJoint Filing Agreement • April 22nd, 2019 • Mangrove Partners Master Fund, Ltd. • Electric services
Contract Type FiledApril 22nd, 2019 Company IndustryThe undersigned hereby agree that the statement on Schedule 13G with respect to the Common Stock of TransAlta Corporation dated April 22, 2019 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 Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.