Winpak Ltd — AGM Information 2026

Feb 5, 2026

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February 05, 2026 800 - 324 8th Avenue SW

Calgary AB, T2P 2Z2 www.computershare.com

To: All Canadian Securities Regulatory Authorities

Subject: WINPAK LTD

Dear Sir/Madam:

We advise of the following with respect to the upcoming Meeting of Security Holders for the subject Issuer:

Meeting Type : Annual General Meeting

Record Date for Notice of Meeting : March 02, 2026 Record Date for Voting (if applicable) : March 02, 2026 Beneficial Ownership Determination Date : March 02, 2026 Meeting Date : April 30, 2026 Meeting Location (if available) : Winnipeg, MB

Issuer sending proxy related materials directly to NOBO: No Issuer paying for delivery to OBO: Yes

Notice and Access (NAA) Requirements:

NAA for Beneficial Holders No NAA for Registered Holders No

Voting Security Details:

Description CUSIP Number ISIN COMMON SHARES 97535P104 CA97535P1045

Sincerely,

Computershare Agent for WINPAK LTD