EX-99.1

Exhibit 99.1

LOGO

TSX TRUST COMPANY

VIA ELECTRONIC TRANSMISSION

April 10, 2025

TO ALL APPLICABLE EXCHANGES AND COMMISSIONS:

RE:

ALGOMA STEEL GROUP INC.

Confirmation of Notice of Record and Meeting Dates

We are pleased to confirm that Notice of Record and Meeting Dates was sent to The Canadian Depository for Securities.

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


1	ISIN:	CA0156581070

	CUSIP:	015658107

2	Date Fixed for the Meeting:	June 24, 2025

3	Record Date for Notice:	May 5, 2025

4	Record Date for Voting:	May 5, 2025

5	Beneficial Ownership Determination Date:	May 5, 2025

6	Classes or Series of Securities that entitle the holder to receive Notice of the Meeting:	COMMON SHARES

7	Classes or Series of Securities that entitle the holder to vote at the meeting:	COMMON SHARES

8	Business to be conducted at the meeting:	Annual

9	Notice-and-Access:
	Registered Shareholders:	YES
	Beneficial Holders:	YES
	Stratification Level:	Not Applicable

10	Reporting issuer is sending proxy-related materials directly to Non-Objecting Beneficial Owners:	YES

11	Issuer paying for delivery to Objecting Beneficial Owners:	YES

Yours truly,

TSX Trust Company