Notification of Half Year Results

Gooch & Housego PLC

("G&H" or the "Company" or the "Group")

Notice of Half Year Results,

Analyst Meeting and IMC Presentation

Gooch & Housego PLC (AIM: GHH), the specialist manufacturer of optical components & systems, will announce its results for the six months ended 31 March 2025 on Tuesday, 3 June 2025.

A meeting for analysts will be held at 10.30am BST on the morning of the results at the offices of Burson Buchanan, 107 Cheapside, London EC2V 6DN. To register attendance, please email G&[email protected].

A live audio webcast of the meeting will be available via the following link: https://webcasting.buchanan.uk.com/broadcast/681e1301c4d6000013235e61

Following the meeting, a recording of the webcast will be made available for replay at the Group's website at https://gandh.com/investors/.

The Company will also be presenting via the Investor Meet Company platform on Thursday, 5 June 2025 at 4.00pm BST. Questions can be submitted pre-event via the Investor Meet Company dashboard up until 9.00am BST on Wednesday, 4 June 2025, or at any time during the live presentation.

Investors and potential investors can sign up to Investor Meet Company, and add to follow Gooch & Housego PLC, via: https://www.investormeetcompany.com/gooch-housego-plc/register-investor

For further information please contact:

Notes to editors

Gooch & Housego is a photonics technology business headquartered in Ilminster, Somerset, UK with operations in the USA and Europe. A world leader in its field, the company researches, designs, engineers and manufactures advanced photonic systems, components and instrumentation for applications in the Aerospace & Defence, Industrial, Life Sciences and Scientific Research sectors. World leading design, development and manufacturing expertise is offered across a broad range of complementary technologies.