Compagnie Plastic Omnium SE

Pre-Annual General Meeting Information • Apr 5, 2023

Levallois, April 5, 2023

COMPAGNIE PLASTIC OMNIUM SE

Incorporated in France with limited liability and issued capital of 8,731,329.18 euros Headquarters: 19, Boulevard Jules Carteret – 69007 LYON Registered in Lyon, no. 955 512 611 – APE business identification code: 7010 Z

Availability of preparatory documents for the Annual Shareholders' Meeting of Compagnie Plastic Omnium SE

The Annual Shareholders' Meeting of Compagnie Plastic Omnium SE will be held on April 26th, 2023 at the Pavillon Dauphine, 2 place du Maréchal de Lattre de Tassigny 75116 PARIS, at 5:00 p.m (Paris time).

Compagnie Plastic Omnium SE would like to remind of all of the ways that the preparatory documents can be made available or be consulted for this Annual Shareholders' Meeting.

The Notice of meeting – containing information on the business and the Group's results, as well as a presentation of the resolutions being submitted for a vote – is being sent within the required timeframe to Shareholders holding registered shares.

¹ Dans tous les pays où une telle offre est disponible The advance notice, serving as a summons to attend the meeting, including the agenda and the text of the proposed resolutions as well as the ways to participate in, and vote at, this meeting, was published in the BALO (French Bulletin of Mandatory Legal Announcements) on March 22nd, 2023.

The meeting notice is also available on www.plasticomnium.com, in the Shareholders' section.

Any shareholder may consult the "2022 Universal registration document" on Compagnie Plastic Omnium SE website.

In addition, any shareholder may request to have the 2022 Universal registration document to be sent, and more generally, all of the documents and information set forth by Articles R 225-81, R 225-83, and R 225- 88 of the French Commercial Code.

It is also possible to examine the documents which will be provided at the Annual Shareholders' Meeting by consulting them at the administrative headquarters of Compagnie Plastic Omnium SE:

Compagnie Plastic Omnium SE Direction de la Communication Financière 1, Allée Pierre Burelle 92300 Levallois-Perret

Shareholders Services Toll-free number: 0800 777 889 Email: investor.relations@plasticomnium.com

About Plastic Omnium

PROJET

Plastic Omnium is a world-leading provider of innovative solutions for a more connected and sustainable mobility. The Group develops and produces intelligent exterior systems, high added-value lighting systems, clean energy systems and customized complex modules. With €9,5 billion pro forma economic revenue in 2022 and a global network of 150 plants and 43 R&D centers, Plastic Omnium relies on its 40,500 employees to meet the challenges of clean and smart mobility. Innovation-driven since its creation, Plastic Omnium is now paving the way for zero carbon mobility through its investments in hydrogen and electrification solutions, a sector where the Group aims to become world leader.

Plastic Omnium is listed on Euronext Paris, compartment A. It is eligible for the Deferred Settlement Service (SRD) and is part of the SBF 120 and CAC Mid 60 indices (ISIN code: FR0000124570). www.plasticomnium.com