macroeconomic scenarios and their probability weights, the application of expert credit judgment in the development of the models, inputs and, when applicable, overlay adjustments. It is the Company’s process to regularly review its models in the context of actual loss experience and adjust when necessary. The Company has implemented formal policies, procedures, and controls over all significant impairment processes. The Company’s definitions of default and credit-impaired are based on quantitative and qualitative factors. A financial instrument is considered to be in default when significant payments of interest, principal or fees are past due for more than 90 days, unless remedial arrangements with the issuer are in place. A financial instrument may be credit impaired as a result of one or more loss events that occurred after the date of initial recognition of the instrument and the loss event has a negative impact on the estimated future cash flows of the instrument. This includes events that indicate or include: significant financial difficulty of the counterparty; a breach of contract; for economic or contractual reasons relating to the counterparty’s financial difficulty, concessions are granted that would not otherwise be considered; it is becoming probable that the counterparty will enter bankruptcy or other financial reorganization; the disappearance of an active market for that financial asset because of the counterparty’s financial difficulties; or the counterparty is considered to be in default by any of the major rating agencies such as S&P, Moody’s and Fitch. The ECL calculations include the following elements: • Probability of default (“PD”), is an estimate of the likelihood of default over a given time horizon. • Loss given default (“LGD”), is an estimate of the loss arising on a future default. This is based on the difference between the contractual cash flows due and those that the Company expects to receive, including from collateral. It is based on credit default studies performed based on internal credit experience. • Exposure at default (“EAD”), is an estimate of the exposure at a future default date, considering both the period of exposure and the amount of exposure at a given reporting date. The EADs are determined by modelling the range of possible exposure outcomes at various points in time, corresponding to the multiple economic scenarios. The probabilities are then assigned to each economic scenario based on the outcome of the models. The Company measures ECLs using a three-stage approach: • Stage 1 comprises all performing financial instruments that have not experienced an SICR since initial recognition. The determination of SICR varies by product and considers the relative change in the risk of default since origination. 12-month ECLs are recognized for all Stage 1 financial instruments. • 12-month ECLs represent the portion of lifetime ECLs that result from default events possible within 12 months of the reporting date. These expected 12-month default probabilities are applied to a forecast EAD, multiplied by the expected LGD, and discounted by the original EIR. This calculation is made for each of four macroeconomic scenarios. • Stage 2 comprises all performing financial instruments that have experienced an SICR since original recognition or have become 30 days in arrears for principal or interest payments, whichever happens first. When assets move to Stage 2, full lifetime ECLs are recognized, which represent ECLs that result from all possible default events over the remaining lifetime of the financial instrument. The mechanics are consistent with Stage 1, except PDs and LGDs are estimated over the remaining lifetime of the instrument instead of over the coming year. In subsequent reporting periods, if the credit risk of a financial instrument improves such that there is no longer a SICR compared to credit risk at initial recognition, the financial instrument will migrate back to Stage 1 and 12-month ECLs will be recognized; and • Stage 3 comprises financial instruments identified as credit-impaired. Similar to Stage 2 assets, full lifetime ECLs are recognized for Stage 3 financial instruments, but the PD is set at 100%. A Stage 3 ECL is calculated using the unpaid principal balance multiplied by LGD which reflects the difference between the asset’s carrying amount and its discounted expected future cash flows. Interest income is calculated based on the gross carrying amount for both Stage 1 and 2 exposures. Interest income on Stage 3 financial instruments is determined by applying the EIR to the amortized cost of the instrument, which represents the gross carrying amount adjusted for any credit loss allowance. For Stage 1 and Stage 2 exposures, an ECL is generated for each individual exposure; however, the relevant parameters are modelled on a collective basis with all collective parameters captured by the individual security level. The exposures are grouped into smaller homogeneous portfolios, based on a combination of internal and external characteristics, such as origination details, balance history, sector, geographic location, and credit history. Stage 3 ECLs are either individually or collectively assessed, depending on the nature of the instrument and impairment. In assessing whether credit risk has increased significantly, the risk of default occurring is compared over the remaining expected life from the reporting date and as of the date of initial recognition. The assessment varies by product and risk segment. The assessment incorporates internal credit risk ratings and a combination of security-specific and portfolio-level assessments, including the incorporation of forward-looking macroeconomic data. The assessment of SICR considers both absolute and relative thresholds. If contractual payments are more than 30 days past due, the credit risk is automatically deemed to have increased significantly since initial recognition. 223