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Algoma Steel Group Inc.

For the period ended Dec 31, 2025. Filed Mar 12, 2026.

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About this filing

The yearly report of certain Canadian companies, filed under a joint US and Canadian system. It is the main yearly account these companies give US investors, largely as filed in Canada.

FY2025 · Filed Mar 12, 2026

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ASTL$5.38+7.8%Stored close · as of Nov 6, 2026
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Contents

EX-99.3 · Defined contribution plan

Defined contribution plan

The Company maintains a defined contribution pension plan established by Old Steelco Inc.’s predecessor in 2004 for

non-unionized

employees in Canada joining the Company after January 1, 2003. As part of Old Steelco Inc.’s contract negotiations with its locals which concluded on July 31, 2010, the locals and Old Steelco Inc. agreed to include in this plan all unionized employees hired subsequent to August 1, 2010 and to offer to all the current employees the option to move to the Defined Contribution Pension Plan. Under the plan, the Company is obligated to provide a base contribution of 6% of salary and also match employee contributions to a maximum of 3%, depending on years of service for

non-unionized

employees. Additionally, the Company is obligated to provide a contribution for unionized employees per qualified hour worked of $3.55 to August 1, 2025 and increasing to $3.85 thereafter.

The pension expense under this plan is equal to the Company’s contribution. The pension expense for the year ended December 31, 2025 was $14.2 million. The pension expense for the nine month period ended December 31, 2024 was $10.9 million.

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