Notice of Interim Results and Presentations

5 September 2023

Itaconix plc

("Itaconix" or "the Company")

Notice of Interim Results, Analyst Meeting, and Investor Presentation

Itaconix plc (AIM: ITX) (OTCQB: ITXXF), a leading innovator in plant-based specialty polymers used to decarbonise everyday consumer products, announces that its Interim Results for the period ended 30 June 2023 will be released on 12 September 2023.

Analyst Meeting

The Company will hold a live online meeting for analysts at 14:00 BST on 12 September 2023 on the Investor Meet Company platform.

This meeting is only open to analysts. If you are an analyst and you would like to attend the analyst meeting, please send an email to: langus@belvederepr.com. The relevant link will be provided to you.

Questions can be submitted pre-event via the Investor Meet Company dashboard up until 09:00 BST the day before the meeting or at any time during the live presentation.

Investor Presentation

The Company will also hold a live online presentation for investors at 15:00 BST on 12 September 2023, also on the Investor Meet Company platform. The online presentation is open to all shareholders and any interested parties.

Investors can sign up to the Investor Meet Company platform and add to join the live presentation via: https://www.investormeetcompany.com/itaconix-plc/register-investor

Questions can be submitted pre-event via the Investor Meet Company dashboard up until 09:00 BST the day before the meeting or at any time during the live presentation.

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Enquiries:

About Itaconix

Itaconix uses its proprietary plant-based polymer technology platform to produce and sell specialty ingredients that improve the safety, performance, and sustainability of consumer products. The Company's current ingredients are enabling and leading new generations of products in detergents, hygiene, and hair care. Itaconix's products contribute to the global low carbon economy.

www.itaconix.com