Circular RUNOR 1-1964: Monthly Accounting Information Regime. Minimum Capital Requirements and Integration (R.I. - C.M.). Adjustments

"2026 - YEAR OF ARGENTINE GRANDEUR" COMMUNICATION “A” 8462 07/30/2026 TO FINANCIAL ENTITIES: Ref.: Circular RUNOR 1-1964: Monthly Accounting Information Regime. Minimum Capital Requirements and Integration (R.I. - C.M.). Adjustments.

We address you to provide the pages that need to be replaced in Section 5. of the Consolidated Text on Information Submission to the Central Bank, in accordance with the provisions disseminated through Communication “A” 8461. In this regard, we highlight the adjustment of validation controls 12, 14, and 17 of ANNEX II – Complementary information related to the calculation of market risk requirements. Additionally, the opportunity is deemed appropriate for the adjustment of point 5.2.1.2.i) regarding item 12550000, in accordance with the provisions disseminated through Communication “A” 8449. Sincerely, CENTRAL BANK OF THE ARGENTINE REPUBLIC Diego J. de Brito Ferra Mariana A. Díaz Deputy Manager of Prudential Regimes and Audit Standards Manager of Information Regime ANNEX

5.2. Specific instructions. 5.2.1. In design 5601. 5.2.1.1. The corresponding items will be recorded according to the information model contained in points 3.1.4., 4.2.1., 5.2., 6.2., 7.2., 8.2., 9.2.1., 9.2.2., 10.2. and 11.2.3. of the Consolidated Text of this Information Regime (RI). For items with consolidation code 3, field 3 “Information date” will contain the date corresponding to the last month of the quarter. (Suspended since April/24 according to point 6.1. of the rules on “Consolidated supervision”) 5.2.1.2. Field 6 will be completed according to the following guidelines: i) Weighting factor. For items corresponding to Computable Assets (codes 11XX0000 and 12XX0000 (except 12550000), this field will be completed with the corresponding weighting factor in each case, in accordance with the provisions of points 3.1.2. and 3.1.4. of the Consolidated Text of this RI. Therefore, a record will be saved for each weighting factor for which the item registers an amount. ii) Currency. For items 311200/xx, the currency to which their determination corresponds will be recorded, in accordance with the coding provided in table T0003 of SISCEN, as established in point 4.1.1.3. of the Consolidated Text of this RI. In these cases, “0” must be recorded in the first position on the left. Residual currencies will be identified with code “9999”. Identical coding will be used for items 361X000X/M and 36110000/M. iii) Country. For items 312200/xx, the country corresponding to the market in which positions are traded will be recorded, in accordance with the SWIFT Country Codes, as established in point 4.1.1.5. of the Consolidated Text of this RI. For these cases, the last 2 positions on the right must be filled with blanks. iv) Remaining cases. For items not included in the previous sections, “1000” will be recorded in field 6. 5.2.1.3. Only amounts corresponding to items: 12700000, 20110000, 28100000, 70200000 and 70220000 may be reported with a negative sign, when these concepts are negative; 20300000, 20400000, 20500000, 22800000, 343X000X, 3440000X, 36100000, 36110000, 36120000, 36130000 and 3500000X, 3570000X when the result is a loss. Items 20600000, 22000000 and 28200000 may only be reported with a negative sign. B.C.R.A. SUBMISSION OF INFORMATION TO THE CENTRAL BANK Section 5. Minimum Capital Requirements and Integration. Version: 18th. COMMUNICATION “A” 8462 Effective: 06/01/2026 Page 2

B.C.R.A. SUBMISSION OF INFORMATION TO THE CENTRAL BANK Section 5. Minimum Capital Requirements and Integration. Code Legend Cause 05 INVALID DAY This is a non-existent day or does not coincide with the last day of the reported quarter. 06 INCORRECTLY REPORTED CURRENCY CODE - If items 552XX0, 561000, 562000 or 5531X0 were reported in field 2, field 3 was not reported, or - Field 3 was integrated when a code other than 552XX0, 561000, 562000 or 5531X0 was reported in field 2. 07 ITEM XX - INCORRECTLY REPORTED SIGN A negative sign was reported for an unpermitted item. 08 INCORRECTLY REPORTED BAND CODE - If items 561000 and/or 562000 were reported in field 2, field 5 was not reported, or - Fields 4 and/or 5 were reported for field 2 other than 561000 and/or 562000. 09 MISSING ITEM 551XX0/xx If item 311100/xx was reported in the Minimum Capital RI, at least one item 551XX0/xx was not reported. 10 MISSING ITEM 552XX0/xx/M If item 311200/xx/M was reported in the Accounting Minimum Capital RI, at least one item 552XX0/xx/M was not reported. 11 MISSING ITEM 5531X0/xx If item 313000/xx was reported in the Accounting Minimum Capital RI, at least one item 5531X0 was not reported. 12 MISSING ITEM 554XXY/xx If item 314X00/xx was reported in the Accounting Minimum Capital RI, at least one item 554XXY/xx was not reported. 13 MISSING ITEM 552200/xx/M If items 561000 and 562000 were reported with the same combination of fields 4 and 5 and with different amounts, item 552200 was not reported. 14 INCONSISTENCY ITEMS 554XXY/xx Items 55410Y/xx and 5542XY/xx were reported simultaneously. Version: 3rd. COMMUNICATION “A” 8462 Effective: 08/01/2026 Page 7

B.C.R.A. SUBMISSION OF INFORMATION TO THE CENTRAL BANK Section 5. Minimum Capital Requirements and Integration. Version: 2nd. COMMUNICATION “A” 8462 Effective: 08/01/2026 Page 8 Code Legend Cause 15 MISSING ITEM 561000 OR 562000 CURRENCY XX For the indicated currency, if any of items 552XX0 were reported, the corresponding item 561000 or 562000 was omitted. 16 INCORRECTLY REPORTED ITEMS 553X00/xx - If item 553200/xx was reported, the amount entered in field 6 is negative, or does not match the result obtained by applying the formula provided in point 4.3.2. of the P.R. of this regime; - If item 553300/xx was reported, the amount entered in field 6 is positive, or does not match the result obtained by applying the formula provided in point 4.3.2. of the P.R. of this regime. 17 ITEMS 55XXX0 – LACK OF CORRESPONDENCE WITH THE MINIMUM CAPITAL RI - The amount recorded in items 551X00/xx does not match that reported in item 311100/xx of the Minimum Capital RI according to the calculation provided in point 4.3.1.1. of the P.R. of this regime, or - The amount recorded in items 552X00/xx/M does not match that reported in item 311200/xx/M of the Minimum Capital RI according to the calculation provided in point 4.3.1.2. of the P.R. of this regime, or - The amount recorded in items 553X00/xx does not match that reported in item 313000/xx of the Minimum Capital RI according to the calculation provided in point 4.3.2. of the P.R. of this regime, or - The amount recorded in items 554XXY/xx does not match that reported in items 314X00/xx of the Minimum Capital RI according to the calculation provided in point 4.3.3. of the P.R. of this regime.