Hercules added to Preferred Supplier List

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Hercules plc has been added to Balfour Beatty's Power Transmission and Distribution Division's Preferred Supplier List, strengthening its relationship with the major infrastructure firm and enabling it to provide specialist substation, cable, and civils labour support. This development follows Hercules' strategic expansion in the power and energy sector through the acquisitions of Advantage NRG Ltd in June 2025 and a 70% interest in Lyons Power Services Ltd in October 2025, bolstering its capabilities in overhead electrical transmission lines and power and energy infrastructure services.

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Hercules PLC

19 January 2026

Hercules plc

("Hercules" or the "Company")

Hercules added to Balfour Beatty's Power Transmission and Distribution Division's Preferred Supplier List

Hercules plc (AIM: HERC), a leading technology enabled labour supply company for the UK infrastructure and construction sectors, is pleased to announce that it has secured a place on Balfour Beatty's Preferred Supplier List ("PSL") for its Power Transmission & Distribution work.

Being added to the PSL strengthens Hercules' longstanding relationship with Balfour Beatty, which is developing some of the UK's most ambitious power transmission and distribution projects. Hercules will provide specialist substation, cable and civils labour support.

Hercules' expansion in the power and energy sector began with the Company's largest acquisition to date, Advantage NRG Ltd ("Advantage NRG") in June 2025. Advantage NRG supplies linesmen for the construction and maintenance of overhead electrical transmission lines. Hercules increased its presence in the sector in October 2025 with the acquisition of a 70% interest in Warrington-based Lyons Power Services Ltd, a specialist UK and overseas provider of power and energy infrastructure services, as well as commissioning engineers to the transmission and distribution network.

Brusk Korkmaz, CEO of Hercules plc, said: "Being added to Balfour Beatty's Preferred Supplier List for its Power Transmission and Distribution work is another milestone in Hercules' expansion in the UK energy infrastructure market. It reflects our strong working relationship with Balfour Beatty and the capabilities we have built in specialist labour supply across substations, cabling and civils.

"This development supports Hercules' continued expansion in the power and energy sector and provides an opportunity to deploy the expertise of our recent acquisition, Advantage NRG. We see significant investment continuing across the UK energy infrastructure sector as it responds to rising demand and long-term network requirements over the next decade."

For further information and enquiries, please contact:

Hercules plc Brusk Korkmaz (CEO) Paul Wheatcroft (CFO)	c/o SEC Newgate

SP Angel Corporate Finance LLP (Nominated Adviser and Broker) Matthew Johnson / Adam Cowl (Corporate Finance) Grant Barker / Rob Rees (Sales and Broking)	+44 (0) 20 3470 0470

SEC Newgate (Financial Communications) Robin Tozer / Ian Silvera / Nina Renata Pop	+44 (0) 20 3757 6882 Hercules@secnewgate.co.uk

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