4Front Ventures Corp. — AGM Information 2024

Jul 24, 2024

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July 24, 2024

To: All Canadian Securities Regulatory Authorities

Dear Sirs,

Re: 4Front Ventures Corp. ISIN: Class A Subordinate Voting Shares: CA35086B2075 CUSIP: Class A Subordinate Voting Shares: 35086B 20 7 ISSUE: Class C Multiple Voting Shares (not listed) Annual General Meeting

We are pleased to confirm the details of the upcoming meeting of shareholders for 4Front Ventures Corp.:

Issuer: 4Front Ventures Corp. Type of Meeting: Annual General Meeting Meeting Date: October 2, 2024 Record Date for Notice and voting: August 19, 2024 Voting securities: Class A Subordinate Voting Shares Class C Multiple Voting Shares Issuer sending materials directly to NOBO: Yes Issuer to pay for delivery of materials to OBO: No Stratification: No Notice‐and‐Access for Registered shareholders: Yes Notice‐and‐Access for Beneficial shareholders: Yes

We are filing this in compliance with National Instrument 54‐101, in our capacity as the agent for 4Front Ventures Corp.

Yours truly,

“Miguel Lahud”

Miguel Lahud Director, Client Services T: 403‐237‐6111 E: miguel@alliancetrust.ca

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