PPG Industries : 2024 Virtual Annual Meeting of Shareholders Letter to Shareholders

PPG 2024 Virtual Annual Meeting of Shareholders

Date: Location:Thursday, April 18, 2024, 11:00 a.m. ET

Online athttps://www.cesonlineservices.com/ppg24_vm

This year's Annual Meeting will be held in a virtual format through a live webcast athttps://www.cesonlineservices.com/ppg24_vm.

Shareholders of PPG, or participants in a PPG maintained retirement or savings plan at the close of business on February 16, 2024 (record date) are entitled to attend, ask questions and vote at the virtual Annual Meeting. All shareholders wishing to attend the virtual Annual Meeting must pre-register no later than 5:00 p.m. on April 17, 2024.

Registered Shareholders

Shareholders of record as of the record date may register to participate in the Annual Meeting by visiting the websitehttps://www.cesonlineservices.com/ppg24_vm.

Please have your proxy card or Notice of Internet Availability containing your 11-digit control number available and follow the instructions to complete your registration request. After registering, you will receive a confirmation email with a link and instructions for accessing the virtual Annual Meeting.

Beneficial Shareholders

Shareholders whose shares are held through a broker, bank or other nominee as of the record date may register to participate in the virtual Annual Meeting by visiting the websitehttps://www.cesonlineservices.com/ppg24_vm.

Please have your voting instruction form, Notice of Internet Availability, or other communication containing your control number available and follow the instructions to complete your registration request, including uploading a copy of one of these documents. After registering, you will receive a confirmation email with a link and instructions for accessing the virtual Annual Meeting. If you are a beneficial shareholder and you wish to vote your shares online during the virtual Annual Meeting, rather than submitting your voting instructions before the Annual Meeting, you will need to contact your bank, broker, or other nominee to obtain a legal proxy form that you must submit when voting online during the Annual Meeting.

Listen-Only, Live Webcast

A listen-only, live webcast of the virtual Annual Meeting will also be available to all shareholders and guests who do not pre-register athttps://www.cesonlineservices.com/ppg24_vm.Pre-registration is required to vote and submit questions during the meeting.

We encourage you to access the virtual Annual Meeting or live, listen-only webcast at least 15 to 30 minutes before it begins. Online check-in will start at approximately 10:30 a.m. Eastern Daylight Time on April 18, 2024. If you have difficulty accessing the meeting, please follow the instructions contained in the reminder email you will receive the evening before the meeting. We will have technicians available to assist you.

2024 Annual Meeting Proxy Materials

In accordance with the SEC's Notice and Access rules, PPG shareholder proxy materials are available below:

• 2023 Annual Report/10K (.pdf)

• 2024 Proxy Statement (.pdf)

Shareholders of record (Feb. 16, 2024) who have not previously request paper copies of PPG's proxy materials will receive a Notice of Internet Availability of Proxy Materials via the U.S. mail. The Notice includes instructions for viewing the 2024 Proxy Statement and the 2023 Annual Report online, voting your shares via the Internet, and requesting a printed copy of the proxy materials.

Requests for Printed Materials (2024 Proxy, 2023 PPG Annual Report & Proxy Voting Card)

Registered shareholders (have your control number ready):

Visit:www.sendmaterial.com

Phone: [phone] (toll free) Email:[e-mail]

Beneficial owners and other interested parties,click here.

Beneficial owners must contact their broker or bank to obtain a proxy card.