Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015

September 2, 2026 BSE Limited National Stock Exchange of India Limited Listing Department Listing Department Phiroze Jeejeebhoy Towers Exchange Plaza, 5th floor Dalal Street Plot No. C/1, G Block Mumbai 400 001 Bandra-Kurla Complex Bandra (East) Mumbai 400 051 Dear Sir/Madam, Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Pursuant to Reserve Bank of India’s swap facility for FCNR (B) deposits up to August 31, 2026, the gross mobilisation by ICICI Bank Limited (the Bank) is ~ USD 17.88 billion (~ ₹ 1,702 billion). Loans provided by international branches and subsidiaries of the Bank against such deposits are ~ USD 9.00 billion (~ ₹ 856 billion). Further, standby letters of credit issued by the Bank to other banks in respect of loans against such deposits would amount to ~ USD 3.63 billion (~ ₹ 346 billion). As previously intimated by the Bank on various dates, the Bank has issued in aggregate ~ USD 3.55 billion (~ ₹ 338 billion) of USD denominated bonds during July-August 2026. Note: ₹ amounts represent convenience translation at the exchange rate prevailing on August 31, 2026. The above information is provisional and unaudited. You are requested to take the same on record. Yours sincerely, For ICICI Bank Limited Prachiti Lalingkar Company Secretary Copy to- (i) New York Stock Exchange (iii) Japan Securities Dealers Association (ii) Singapore Stock Exchange (iv) SIX Swiss Exchange Limited