LEI: 213800PMTT98U879SF45

THIS ANNOUNCEMENT CONTAINS INSIDE INFORMATION UNDER THE UK MARKET ABUSE REGULATION. UPON THE PUBLICATION OF THIS ANNOUNCEMENT, SUCH INFORMATION IS NOW CONSIDERED TO BE IN THE PUBLIC DOMAIN

9 March 2026

Hydrogen Capital Growth plc

("HGEN" or the "Company" and, together with its subsidiaries, the "Group")

Partial sale of stake in Strohm

As part of its managed realisation strategy approved by shareholders and adopted on 1 December 2025, the Board is pleased to announce that HGEN has completed the sale of part of its stake in Strohm Holding B.V. ("Strohm") to an existing investor in Strohm. This follows interest from external third parties and other existing investors. Strohm is a Netherlands-based low-carbon offshore pipeline manufacturer and the world's first and leading provider of thermoplastic composite pipe ("TCP") technology.

The consideration of €1.5m, though at a discount to the valuation used for the most recently announced NAV, represents the best outcome for HGEN shareholders at this time. Following this partial sale the Company retains a 9.0% stake in Strohm.

The disposal provides some liquidity for HGEN as the Company continues to focus on further disposals of the remaining assets in a suitable manner and timeframe. Following receipt of the sale proceeds, the Group's cash position is expected to be approximately £1.6m. The sale proceeds will be used to satisfy upcoming payment obligations and to provide ongoing working capital for the Company. The Board continues to closely monitor and manage the Group's cash position.

The Board and Investment Manager will continue to implement the orderly managed realisation of the Company's portfolio, seeking to achieve the optimal outcome for shareholders. As previously announced, the Company is continuing to explore options for the Company and its current structure, which may include the potential for the Company to seek a delisting. A further update will be provided in due course.

For further information, please contact:

This announcement contains inside information for the purposes of Article 7 of Regulation (EU) No 596/2014, as it forms part of UK domestic law ("UK MAR"). Upon publication of this announcement, the inside information is now considered to be in the public domain for the purposes of UK MAR. The person responsible for arranging the release of this announcement on behalf of the Company is Hamish Few of Apex Fund Administration Services (UK) Limited, Company Secretary.