5 September 2025

US Solar Fund plc

Notice of Results

US Solar Fund plc (USF, the Company) will announce its interim results for the period ended 30 June 2025 on Tuesday 16 September 2025.

There will be an online presentation for analysts and institutional investors at 2pm on Tuesday 16 September 2025. Analysts and institutional investors wishing to attend should register via this link or entering the following into their browser:  https://events.teams.microsoft.com/event/010cd4a0-7b33-4160-b5e4-560a489f765a@b67afbd4-7032-4859-b4a7-1d51ca077f23

Retail investor presentation

USF will also host a presentation for retail investors via the Investor Meet Company platform at 4pm on Tuesday 16 September 2025.

The presentation will be open to all existing and potential shareholders. Questions can be submitted pre-event via the Investor Meet Platform dashboard, up until 9.00am on the day before the meeting. Questions can be submitted at any time during the live presentation.

Investors who already follow USF on the Investor Meet Company platform will automatically be invited to the meeting. Those wishing to sign up for free, and join the meeting online, can do so here: https://www.investormeetcompany.com/us-solar-fund-plc-1/register-investor

For further information, please contact:

About US Solar Fund plc

US Solar Fund plc, established in 2019, listed on the premium segment of the London Stock Exchange in April 2019.  The Company's investment objective is to provide investors with attractive and sustainable dividends with an element of capital growth by owning and operating solar power assets in North America.

The solar power assets that the Company acquires or constructs are expected to have an asset life of at least 30 years and generate stable and uncorrelated cash flows by selling electricity to creditworthy off-takers under long-term power purchase agreements (or PPAs). The Company's portfolio currently consists of 41 operational solar projects with a total capacity of 443MWDC, all located in the United States.

Further information on the Company can be found on its website at http://www.ussolarfund.co.uk

About the Investment Manager

Amber Infrastructure is an international infrastructure specialist, focused on investment origination, development, asset management and in Europe, fund management. Amber's core business focuses on infrastructure assets across the public, transport, energy, digital and demographic infrastructure sectors that support the lives of people, homes and businesses internationally.

Among other funds, Amber advises International Public Partnerships, a FTSE 250-listed company with a market cap of approximately £2.2 billion and 15-year track record of long-term investment in infrastructure assets globally. Amber is headquartered in London with offices in Europe, North America, Australia and New Zealand and employs over 180 infrastructure professionals.

Amber has had a strategic partnership with the Hunt Group of Companies in the US since 2015 and completed their previously announced strategic transaction with Boyd Watterson in August 2024. Amber is part of Boyd Watterson Global Asset Management Group LLC, a global diversified infrastructure, real estate and fixed income business with over $36 billion in assets under management and over 300 employees with offices in eight US cities and presence in twelve countries.

Learn more at amberinfrastructure.com