144/A 0001990617-24-000001 0001990617 XXXXXXXX LIVE 0001828811 Li-Cycle Holdings Corp. 001-40733 207 Queens Quay West, Suite 590 Toronto A6 M5J 1A7 877-542-9253 Simpson Debbie Officer Common Shares Morgan Stanley Wealth Management Canada Inc.

140 4th Avenue SW, Suite 2740 Calgary A0 T2P 3N3

82000 35260.00 178249828 02/01/2024 NYSE Common Shares 01/31/2024 Common shares issued on settlement of previously granted RSUs Issuer N 144087 01/31/2024 Equity Compensation Y The Reporting Person will be selling an estimated amount of common shares set forth herein pursuant to automatic sell to cover transactions that do not represent a discretionary trade by the Reporting Person in order to pay the tax liability arising from the vesting and settlement of restricted stock units. The aggregate market value estimate is based on the closing price of the Issuer's common shares on January 25, 2024 at $0.43 per common share. This Form 144/A is filed to reflect an increase in the estimated number of shares to be sold from the estimate reported on the initial Form 144, to update the number of common shares issued on settlement of previously granted RSUs, and to update the approximate date of sale. 02/01/2024 /s/Carl DeLuca, as attorney-in-fact for Deborah Simpson