Employee Stock Purchase Plan

¹ The cost basis is the market price per share at subscription.

² The cost basis is the market price per free share at vesting.

Your purchased shares are subject to a holding period, during which time you are not permitted to sell or otherwise dispose of them unless you qualify for an early exit event.

The early exit events may change with each new plan, so it’s important to check the details below.

Employees can sell their 2022 and 2024 shares in advance of these dates in the following circumstances only:

1. Their disability (as evidenced by approval of receipt of long-term disability benefits by Arkema’s long-term disability provider);

2. Their death or the death of their spouse (as evidenced by a copy of the death certificate);

3. Their termination of employment with the Arkema Group, including due to their retirement;

4. The purchase or enlargement of their primary residence.
   • For the purchase of a primary residence, documentation that will be taken into consideration includes a binding sale contract with a specified closing date and final closing documents.
   • For the enlargement of a primary residence, documentation that will be taken into consideration includes contracts with architects and other contractors, governmental permits and paid invoices.

If you think you qualify for an early exit event and would like to sell your shares before the end of the holding period, please contact your local Human Resources Representative to:

• Determine if you have an ESPP company loan balance. You must reimburse your loan in order to be permitted to sell your shares;
• Determine if you qualify for an early exit event by providing proof of such;
• Request an Early Exit Form

Shares which you continue to hold from your purchased shares (regardless of whether you have an outstanding purchase loan balance) as well as prior free shares that have vested are eligible for dividends that may be granted at the annual shareholders meeting.

Dividend payments are usually made electronically to your US bank registered on your Uptevia account, and a "Credit Advice" statement is available. It is your responsibility to verify that your dividends have been paid. Please review your US bank statement to confirm your receipt. The description of the dividend will contain the word “Arkema”.

*Foreign Tax Withholding shown at a 12.8% rate

Once you begin participating in the ESPP, it is your responsibility as a subscriber to do the following:

• Keep track of how many shares you purchased, when you purchased them, and the cost basis of the shares.
• Keep Uptevia informed of any changes in your name, your personal email address, your mailing address, or banking information by updating your online account at www.investors.uptevia.com. This information is important in order for you to receive your dividends.
• Keep all correspondence that you receive from the bank. You will need your Identifier, Access Code and Password to access your account information online.
• If you never received or lost your login credentials please reach out to Uptevia via their Contact Us envelope on their website (top right corner on the main page).
• If you chose a company loan to pay for your shares and taxes, you are responsible for paying back your company loans.

Starting November 11, 2024, Planetshares will become Uptevia Investors. This means you will access your ESPP account information from a different website URL. Review the instructions below to set up your Uptevia Investors account. Please note your account information will be automatically carried over from Planetshares to Uptevia Investors.

• Karen Campo: karen.campo@arkema.com
• Susan Rizzuto: susan.rizzuto@arkema.com
• Robert Follis: robert.follis@arkema.com