8 September 2025

Invinity Energy Systems plc

("Invinity" or the "Company")

MoU to Expand Strategic Relationships in China

Intention to significantly scale up Invinity's product development and manufacturing operations in the region.

Invinity Energy Systems plc (AIM: IES) (OTCQX: IESVF), a leading global manufacturer of utility-grade energy storage, is pleased to announce that, on behalf of a proposed consortium of partners ("Consortium"), it has signed a non-binding Memorandum of Understanding ("MoU") with Xiamen C&D Corporation Limited ("C&D") targeting the establishment of manufacturing facilities for the Company's Vanadium Flow Battery projects in Xiamen, China. The MoU was signed in the presence of Invinity's partners and senior British and Chinese representatives at the opening of the UK Government Pavillion today at the Chinese International Fair for Investment and Trade (CIFIT).

Above: Jonathan Marren, Invinity CEO (front left) and Lin Mao, Xiamen C&D Inc. Chairman (front right) signing the agreement in the presence of (from left to right), Chung Fung King Jacqueline (Vice Chairman, IRL) Chen Min (Director General, Xiamen Municipal Bureau of Commerce), Han Xiaodong (Deputy Director General, Europe, China Ministry of Commerce), Peter Wilson, (British Ambassador to China), Lewis Neal (British Trade Commissioner for China and Hong Kong) and Liao Zhanghui (UESNT Executive Director)

The MoU envisages that C&D, with the assistance of the Xiamen Municipal Government, will support the proposed Consortium in scaling up Chinese manufacturing capabilities for Invinity batteries in the region. Furthermore, C&D have indicated willingness to offer the proposed Consortium working capital support and also provide it with access to C&D's global supply chain platform, which is intended to accelerate the proposed Consortium's plans to optimise procurement, logistics, and distribution for large-scale production. C&D is a state-owned Fortune Global 500 Company operating in supply chain operations and real estate development with annual revenues of ~$100 billion.

Invinity has signed this MoU on behalf of an expanded proposed consortium of partners in the region. These include; International Resources Limited ("IRL") (based in Hong Kong and owner and operator of the Mapochs mine in South Africa, historically one of the largest vanadium producers globally), Baojia New Energy (Invinity's existing manufacturing partner in China) and Guangxi United Energy Storage New Materials Technology Limited ("UESNT"), with whom Invinity signed a strategic partnership with on 11 July 2025.

The United Kingdom is the Country of Honour at the 25^th China International Fair for Investment & Trade (CIFIT), hosted by the Ministry of Commerce of the People's Republic of China.

Invinity and C&D, along with the proposed Consortium, will proceed over the coming months to negotiate the terms of binding agreements.

Jonathan Marren, Chief Executive Officer at Invinity said:

"With the signing of this MoU today in Xiamen, as part of the UK delegation at CIFIT, one of the most influential international investment events in the world attracting delegations from over 100 countries, we are signalling our intention to continue to seek and leverage partners and their relationships to further Invinity's interests globally.

This MoU, formalises our objective to further strengthen and expand our network of valued partners in Hong Kong and China across numerous areas. We look forward to further progressing our plans to scale up our manufacturing and supply chain operations in the region to meet growing global demand for our products."

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Notes to Editors

Invinity Energy Systems plc (AIM: IES) (OTCQX: IESVF) manufactures vanadium flow batteries for large-scale, high-throughput energy storage requirements of business, industry and electrical networks.

Invinity's factory-built flow batteries run continually with no degradation for over 30 years, making them suitable for the most demanding applications in renewable energy production. Energy storage systems based on Invinity's batteries are safe, reliable, and economical, and range in size from less than 250 kilowatt-hours to tens of megawatt-hours.

Invinity was created in April 2020 through the merger of two flow battery industry leaders: redT energy plc and Avalon Battery Corporation. With more than 190 MWh of systems deployed, contracted for delivery or awarded for projects across more than 90 sites in 17 countries, Invinity is active in all major global energy storage markets and has operations in the UK, Canada, USA and China. Invinity Energy Systems plc is quoted in the UK on AIM and trades in the USA on OTCQX.

To find out more, visit invinity.com, sign up to our monthly Investor Newsletter here or contact Investor Relations on via +44 (0)20 4551 0361 or ir@invinity.com.