Exhibit A
Agreement of Joint Filing
Pursuant to Rule 13d-1(k)(l)(iii) of Regulation 13D-G of the General Rules and Regulations of the Securities and Exchange Commission under the Securities Exchange Act of 1934, as amended, the undersigned agree that the statement on Schedule 13D/A to which this Exhibit is attached is filed on behalf of each of them in the capacities set forth below.
| CHARLES W. ERGEN | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Charles W. Ergen by Robert J. Hooke, attorney-in-fact | |
| CANTEY M. ERGEN | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen by Robert J. Hooke, attorney-in-fact | |
| ERGEN TWO-YEAR JUNE 2023 SATS GRAT | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Trustee by Robert J. Hooke, attorney-in-fact | |
| ERGEN TWO-YEAR JUNE 2023 DISH GRAT | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Trustee by Robert J. Hooke, attorney-in-fact | |
| ERGEN TWO-YEAR DECEMBER 2023 SATS GRAT | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Trustee by Robert J. Hooke, attorney-in-fact | |
| ERGEN TWO-YEAR MAY 2024 SATS GRAT | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Trustee by Robert J. Hooke, attorney-in-fact | |
| ERGEN TWO-YEAR JULY 2024 SATS GRAT | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Trustee by Robert J. Hooke, attorney-in-fact | |
| ERGEN TWO-YEAR MAY 2025 SATS GRAT | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Trustee by Robert J. Hooke, attorney-in-fact | |
| TELLURAY HOLDINGS, LLC | |
| Dated: May 15, 2025 | /s/ Robert J. Hooke |
| Cantey M. Ergen, Manager by Robert J. Hooke, attorney-in-fact |