JOINT FILING AGREEMENT
Exhibit 99.1
The undersigned hereby agree that this Schedule 13D, dated December 9, 2022 , with respect to the common stock, no par value, of Middlefield Banc Corp., an Ohio corporation, is, and any amendments hereto signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
Dated: December 9, 2022
| By: Castle Creek Capital VI LLC, its general partner | ||
| By: | /s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |
| Name: | ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |
| Title: | Managing Principal | |
| CASTLE CREEK CAPITAL VI LLC | ||
|
By: |
/s/ ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |
| Name: | ▇▇▇▇ ▇▇▇▇▇▇▇▇ | |
| Title: | Managing Principal | |
SIGNATURE PAGE TO JOINT FILING AGREEMENT (MIDDLEFIELD BANC CORP.)
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