South Bow Corp

Normalizing Items

Normalized measures are (or include) non-GAAP financial measures and include normalized EBITDA, segment normalized EBITDA, normalized net income, normalized net income per share, distributable cash flow, and net debt-to-normalized EBITDA. Management uses these normalized measures as a way to assess the financial performance of South Bow's operations and compare period over period. During certain reporting periods, the Company may incur costs which are not indicative of core operations or results. These normalized measures represent income (loss) adjusted for specific normalizing items that are believed to be significant; however, not reflective of South Bow's underlying operations in the period.

These specific normalizing items include gains or losses on sales of assets or assets held for sale, unrealized fair value adjustments related to risk management activities, tariff charges, separation, acquisition, integration, and restructuring costs, and other charges, including but not limited to, impairment, contractual costs, and settlements.

South Bow excludes the unrealized fair value adjustments related to risk management activities as these represent the changes in the fair value of derivatives, but do not accurately reflect the gains and losses that will be realized at settlement and impact income. Therefore, the Company does not consider these items reflective of its underlying operations, despite providing effective economic hedges. Realized gains and losses on grade financial contracts are adjusted to improve comparability as they settle in a subsequent period to the underlying transaction they are hedged against.

South Bow excludes tariff charges as they are not reflective of ongoing business conducted by the Company and are subject to uncertainty.

Separation costs relate to internal costs and external fees incurred specific to the Spinoff. These items have been excluded from normalized measures as Management does not consider them reflective of ongoing operations and they are non-recurring in nature.