EXHIBIT 99.1
| CUSIP No. 26916J106 |
JOINT FILING AGREEMENT
THIS JOINT FILING AGREEMENT is entered into as of February 14, 2024, by and among the parties signatories hereto. The undersigned hereby agree that the Statement on Schedule 13D with respect to the shares of Common Stock of ESS Tech, Inc. is, and any amendment thereafter signed by each of the undersigned shall be, filed on behalf of each undersigned pursuant to and in accordance with the provisions of 13d-1(k) under the Securities Exchange Act of 1934, as amended.
| CYCLE CAPITAL FUND III, L.P., | ||
| a partnership formed under the Civil Code of Québec | ||
| By: Cycle Capital III, L.P., | ||
| Its General Partner | ||
| By: Cycle Capital Management III, Inc. | ||
| Its General Partner | ||
| By: | /s/ Andrée-Lise Methot | |
| President | ||
| CYCLE CAPITAL III, L.P., | ||
| a partnership formed under the Civil Code of Québec | ||
| By: Cycle Capital Management III, Inc., | ||
| Its General Partner | ||
| By: | /s/ Andrée-Lise Methot | |
| President | ||
| CYCLE CAPITAL MANAGEMENT III, INC., | ||
| a company incorporated under the Canada Business Corporations Act | ||
| By: | /s/ Andrée-Lise Methot | |
| President | ||
| Andrée-Lise Methot | ||
| By: | /s/ Andrée-Lise Methot | |
| Claude Vachet | ||
| By: | /s/ Claude Vachet | |
