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Update to Notice of Disagreement Timeline

Notice Issue Date: January 26, 2026
Impacted Invoice, Settlement Statement or Trade Date Description Posting Date Type Participants Affected
January 01, 2026 preliminary settlement statement

This is a reminder that the deadline to submit Notice of Disagreements for the Physical market settlement statements has been updated to eight business days effective as of trading day January 1, 2026.

Furthermore, please note that the deadline will be updated to six business days effective as of trading day July 1, 2026.

If you have any questions regarding this communication, please contact Settlement.Support@ieso.ca. For all other inquiries, please contact IESO Customer Relations at IESOCustomerRelations@ieso.ca.

January 15, 2026 Notice of Disagreements All

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