Regenera Insights — Proxy Solicitation & Information Statement 2024

Jan 5, 2024

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DELTA CLEANTECH INC.

002, 2305 Victoria Avenue Regina, Saskatchewan, S4P 0S7

ALBERTA SECURITIES COMMISSION 250 5 St SW #600 Calgary, AB T2P 0R6 BRITISH COLUMBIA SECURITIES P.O. Box 10142, Pacific Centre 701 West Georgia Street Vancouver, BC, V7Y 1L2

ONTARIO SECURITIES COMMISSION 20 Queen Street West 20th Floor Toronto ON, M5H 3S8

CSE CANADIAN SECURITES EXCHANGE INC. First Canadian Place 100 King Street West, Suite 7210 Toronto, ON M5X 1E1

FINANCIAL AND CONSUMERS AFFAIRS AUTHORITY OF SASKATCHEWAN 6[th] Floor, 1919 Saskatchewan Drive Regina, SK, S4P 4H2

January 5, 2024

Dear Sir/Madam,

Re: Notice of Special Meeting of Shareholders and Record Dates

Please be advised of the following with respect to the upcoming meeting of shareholders for Delta CleanTech Inc. (the “ Issuer ”):

Meeting Type: Special Meeting of Shareholders Meeting Date: March 12, 2024 at 11:30 AM CST Record date for notice: February 1, 2024 Record date for voting: February 1, 2024 Beneficial ownership determination date: February 1, 2024 Classes of shares entitled to notice: Common shares Classes of shares entiled to vote: Common shares CUSIP Number: 24747L101 ISIN: CA24747L1013

The Issuer will not be sending proxy-related materials to registered holders or beneficial owners using notice-and-access. The Issuer is sending the proxy-related materials to NOBOs through a proximate intermediary and does not intend to pay for a proximate intermediary to send the proxy-related materials to OBOs.

Sincerely,

“Michelle Westerman” Michelle Westerman BLC LLB Legal Affairs & Regulatory Administrator