Notice of NAV and Portfolio Update

LEI: 213800PMTT98U879SF45

3 February 2025

HydrogenOne Capital Growth plc

('HydrogenOne' or the 'Company')

Notice of Quarterly NAV, Portfolio Update and Investor Presentation

HydrogenOne Capital Growth ('HydrogenOne' or the 'Company'), the first London-listed fund investing in clean hydrogen for a positive environmental impact, announces that its Q4 2024 NAV and Portfolio Update will be published on Wednesday, 5 February 2025.

Richard Hulf and Dr JJ Traynor, Managing Directors of the Company's investment adviser, will provide a live presentation relating to the Q4 2024 NAV and Portfolio Update via the Investor Meet Company platform on Wednesday, 5 February 2025 at 11am (GMT).

The presentation is open to all existing and potential shareholders. Questions can be submitted pre-event via your Investor Meet Company dashboard up until 9am the day before the meeting or at any time during the live presentation.

Investors can sign up to Investor Meet Company for free and add to meet HydrogenOne via:

https://www.investormeetcompany.com/hydrogenone-capital-growth-plc/register-investor

Investors who already follow HydrogenOne on the Investor Meet Company platform will automatically be invited.

Notes

For further information, please visit www.hydrogenonecapitalgrowthplc.com or contact:

About HydrogenOne:

HydrogenOne is the first London-listed hydrogen fund investing in clean hydrogen for a positive environmental impact. The Company was launched in 2021 with an investment objective to deliver an attractive level of capital growth by investing in a diversified portfolio of hydrogen and complementary hydrogen focussed assets. INEOS Energy is a strategic investor in HydrogenOne. The Company is listed on the London Stock Exchange's main market (ticker code: HGEN). The Company is an Article 9 climate impact fund with an ESG policy integrated in investment decisions and asset monitoring.