Data Correction Timing

Irregular Data Correction

• When the consumption population changes due to changes in the credit card user population, etc.

• When data is changed due to statistical algorithm improvement

Statistical data will not change as much as possible after publication, but can be calibrated without notice for good quality statistics.

In the event of changes to the overall statistical criteria, including changes to the reference population, the Company will provide prior notice through a separate announcement.

Regular Data Correction

• Daily Data : When data is provided every month, the corresponding daily data.

The daily data of the current month is provisional data based on past data, so when providing monthly data, daily data is corrected and provided without notice to fit the population of the month.

• Monthly Data : When data is provided every month, data from the day/month of 2 months ago.

Based on the actual card usage amount, which is announced up to 45 days late by the National Statistical Office every month, estimated daily/monthly data for the past month is corrected to match the actual amount and provided without separate notice.