DIALIGHT PLC

AGM Information • Apr 14, 2022

Annual General Meeting 2022 Voting Instruction Card

Notice of availability

Please note that the Notice of Annual General Meeting (the Notice of AGM) and the Annual Report and Accounts 2021 are now available to view on the Dialight website at www.ir.dialight.com

The 2022 Annual General Meeting (the AGM) will be held at and broadcast from Ashurst LLP, London Fruit & Wool Exchange, 1 Duval Square, London, E1 6PW on Thursday, 19 May 2022 at 10:00am.

You can vote your Dialight plc shares online at www.sharevote.co.uk. you will need your Voting ID and Shareholder Reference Number as shown below to log on.

Any elected proxy will vote at his or her discretion, or abstain from voting on any resolution, if no instruction is given regarding a resolution.

Please refer to the Notice of Meeting for instructions, should you (or your proxy or corporate representative) attend or participate in the meeting in person.

Voting ID Task ID Shareholder Reference Number

Please note that your votes must be registered no later than 10:00am on Tuesday, 17 May 2022.

Notes

• This letter is not a summary of the matters covered in the Notice of AGM and should not be regarded as a substitute for reading the Notice of AGM. You should read the Notice of AGM before taking any decisions in relation to the business to be considered at the AGM.
• Shareholders should bring this letter to gain admittance to the AGM.
• If you wish to receive paper copies of the Notice of AGM and the Annual Report and Accounts 2021 or future documentation by post, please write to Equiniti Limited, Aspect House, Spencer Road, Lancing, West Sussex BN99 6DA quoting your Shareholder Reference Number.
• You have received this letter because, following consultation, you are deemed to have consented to receive shareholder documentation by means of a website, with paper notification of the publication of any documents on our website.
• Those shareholders who have accepted this form of communication have enabled us to minimise the amount of printed documentation we produce, which has helped us to reduce of impact on the environment.
• This year, we will conduct the AGM as a 'hybrid' meeting, as permitted by our Articles of Association adopted at our 2020 AGM. If you wish to attend the meeting remotely via an electronic platform, please see the Notice of Meeting for details on how to do this.
• If you are unable or do not wish to vote online, or you have any questions regarding this notification or are unable to locate or access the documents, please call the Dialight plc Shareholder Helpline, administered by Equiniti, on 0371 384 2495* UK calls or +44 (0)121 415 7047 International calls.
• * Lines are open from 8:30am to 5:30pm, Monday to Friday, excluding public holidays in England and Wales.