For release: 07.00, 27 May 2022

Itaconix plc

("Itaconix" or "the Company")

Notice of Final Results, Investor Presentation and Annual General Meeting

Itaconix plc (AIM: ITX) (OTCQB: ITXXF), a leading innovator in plant-based specialty polymers used as essential ingredients in everyday consumer products, announces that its Final Results for the year ended 31 December 2021 will be released on 8 June 2022.

Investor Presentation

A live online presentation for investors will be held at 2:00 pm BST on 8 June 2022.  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

Investors who already follow the Company on the Investor Meet Company platform will automatically be invited.

Questions can be submitted pre-event via the Investor Meet Company dashboard up until 9:00 am BST the day before the meeting or at any time during the live presentation.

Annual General Meeting

The Company's Annual General Meeting (the "AGM") will be held at the offices of Fieldfisher LLP, Riverbank House, 2 Swan Lane, London EC4R 3TT, United Kingdom at 1:00 pm BST on 1 July 2022.

Management team in London

The senior management team will be in London during the week of 6 June 2022.  Should you wish to meet with management, please contact: langus@belvederepr.com or your usual contact at finnCap.

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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 cleaning, hygiene, and beauty. Itaconix's contributions to the global low carbon economy are recognised by the London Stock Exchange's Green Economy Mark.

www.itaconix.com