discoverIE Annual Report 2026

33. Related party disclosures As at 31 March 2026 the Group’s subsidiaries are set out below. Unless otherwise stated, the Group holds (directly or indirectly) 100% of the total voting rights of all subsidiaries. Except where noted, all material subsidiaries have a 31 March year-end and the shares carry the same voting rights as their effective interest. UK-registered subsidiaries that qualify to take the statutory audit exemption as set out within Section 479A of the Companies Act 2006 for the year ended 31 March 2026 are listed below. discoverIE Group plc will guarantee the debts and liabilities of those companies at the balance sheet date in accordance with Section 479C of the Companies Act 2006. NOTES TO THE GROUP CONSOLIDATED FINANCIAL STATEMENTS CONTINUED FOR THE YEAR ENDED 31 MARCH 2026

33. Related party disclosures continued

Country of incorporation and registration

Name and nature of business Registered address

Management Services - Head Office discoverIE Management Services Limited

2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH

England & Wales

Audit exempt entities within Section 479A of Companies Act 2006

Operating Companies 2J Antennas s.r.o 2J Antennas UK Limited

Company Number 08356756 03835617 09637514 02773976 06846542 09472278 04105605 02081576 06556285

Štefánikova 61, 085 01 Bardejov

Slovakia

Name

2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH

England & Wales

2J Antennas UK Limited

2J Antennas USA Corporation

2020 W Guadalupe Rd, Suite 8, Gilbert, Arizona, 85233

USA

Antenova Limited

Antenova Limited

2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH

England & Wales

CDT 123 Limited

Contour Electronics Limited Contour Holdings Limited Cursor Controls Holdings Limited

burster Inc.

850 New Burton Road, Suite 201, Dover, DE 19904

USA

burster präzisionsmesstechnik GmbH & Co KG Calculagraph Company (trading as Control Products Inc) Coil-Tran de Mexico, S.A. de C. V. 1 2

Talstraße 1–5, 76593 Gernsbach

Germany

850 New Burton Road, Suite 201, Dover, DE 19904

USA

Cursor Controls Limited

CustomDesignTechnologies Limited

Calle Matamoros 124, Colonia Centro, Municipio Agualeguas, Nuevo Leon, CP 65800

Mexico

discoverIE Electronics Limited discoverIE Holdings Limited

01618416

Contour Electronics Asia Limited Room 601, 6/F Shing Yip Industrial Building, 19-21 Shing Yip Street, Kwun Tong, Kowloon

Hong Kong

discoverIE Management Services Limited

02036196 09056483 00533707 NI029851 01981733 04136659 03207845 00668759 03434576 09943868 02217300 05783452 02736925 01677833 07068708

Contour Electronics Limited

2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH

England & Wales

discoverIE Nordic Holdings Limited

Herga Technology Limited Hivolt Capacitors Limited Keymat Technology Limited

Cursor Controls Limited

England & Wales

CustomDesignTechnologies Limited 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH

England & Wales

Noratel UK Limited

Danselbud Noratel Transformator sp. z o.o.

ul. Szczecinska 1K, Dobra Szczecinska PL-72-003

Poland

Santon Switchgear Limited

Sens-Tech Limited

Diamond Technologies, Inc. EMC Innovation Limited 1

43 Broad Street, Unit C103, Hudson, MA 01749

USA

Silver Telecom Limited SLV Holdings Limited

Woolim Lions Valley B-909 & 910, 283 Bupyeong-daero, Bupyeong-gu, Incheon

South Korea

Flux A/S

Industrivangen 5, 4550 Asnaes

Denmark Thailand

Stortech Electronics Limited Variohm Holdings Limited Variohm-Eurosensor Limited

Flux International Limited

41/27, 23 Village No. 6, Phuncharoen Lane, Bangna-Trad K.M. 16.5 Road, Bang Chalong Sub-district, Bang Phli District, Samut Prakan Province, 10540 Building A10-1, Plainvim (Foshan Nanhai) International Intelligent Industrial Park, No.12-1, Huasha Road, Shishan Town, Nanhai District, Foshan City, Guangdong Province

China

Foshan Noratel Electric Co Limited 1

Vertec Scientific Limited

Xi-Tech Limited

Foss Fiber Optics AS Foss Fibre Optics s.r.o

Dansrudveien 45, N-3036 Drammen Odborárska 52, 831 02 Bratislava

Norway Slovakia Sweden

With the exception of Hivolt Capacitors Limited, the country of incorporation and registration for the entities above is England and Wales and the registered address is 2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH. The country of incorporation and registration for Hivolt Capacitors Limited is Northern Ireland, and the registered address is Maydown Industrial Estate, Derry, BT47 6UQ.

Hectronic AB

Åkaregatan 2, 754 54 Uppsala

Hivolt Capacitors Limited

Maydown Industrial Estate, Derry, BT47 6UQ

Northern Ireland England & Wales

Keymat Technology Limited (trading as Storm Interface)

2 Chancellor Court, Occam Road, Surrey Research Park, Guildford, Surrey, GU2 7AH

Limitor GmbH

Dieselstraße 22, 73660 Urbach Pécs, Makay István út 13/b, 7634 Dieselstraße 22, 73660 Urbach

Germany Hungary Germany

Limitor Hungaria Kft Limitor Solutions GmbH

Logic PD, Inc. (trading as Beacon EmbeddedWorks)

850 New Burton Road, Suite 201, Dover, DE 19904

USA

200

201

discoverIE Group plc Innovative Electronics

Annual Report and Accounts for the year ended 31 March 2026

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