EXHIBIT I JOINT FILING AGREEMENTJoint Filing Agreement • September 20th, 2021 • Carlson Capital L P • Paper mills
In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned hereby agrees to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of Glatfelter Corporation, and that this Joint Filing Agreement be included as an Exhibit to such joint filing.
