General Updates

DEPT : SECRETARIAL REF. No. : SEC/ST.EX.STT/81/2026-27 DATE : August 21, 2026 National Stock Exchange of India Ltd., BSE Ltd. Exchange Plaza, 5th Floor, Department of Corporate Services (Listing), Plot No.C/1, G Block, First Floor, New Trading Wing, Bandra-Kurla Complex, Bandra (E), Rotunda Building, P J Towers, Mumbai – 400 051. Dalal Street, Fort, Mumbai – 400 001. SCRIP CODE: SOUTHBANK SCRIP CODE: 532218 Dear Madam/Sir(s), Sub: Intimation under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements), Regulations, 2015 Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulation, 2015 and subject to the provisions of the Securities and Exchange Board of India (Share Based Employee Benefit and Sweat Equity) Regulations, 2021 and in accordance with SIB ESOS Scheme- 2008 and with reference to BSE e-mail dated August 21,2026 directing to furnish additional details regarding corporate announcement made vide our letter No. SEC/ST.EX.STT/80/2026-27 dated August 20, 2026, we hereby inform you that the Board of Directors of the South Indian Bank Ltd. at its meeting held on August 20, 2026 has decided to grant 27,36,230 options to eligible employees under Tranche 21 of SIB ESOS – 2008 as part of their non-cash variable pay/ incentive for the Financial Year 2025-26. The particulars required under regulation 30 of Listing Regulations and in compliance with SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 is enclosed as Annexure I. The Board Meeting commenced at 02:15 p.m. and concluded at 05:45 p.m. The same is being hosted on the Bank’s website www.southindianbank.bank.in as per listing regulations. This is for your kind information. Yours faithfully, (JIMMY MATHEW) COMPANY SECRETARY Encl: as above The South Indian Bank Ltd., Regd. Office: Thrissur, Kerala Head Office: S.I.B. House, T.B. Road, P.B. No: 28, Thrissur - 680001, Kerala (Tel) 0487-2420 020, (Fax) 91 487-244 2021, e-mail: sibcorporate@sib.bank.in CIN: L65191KL 1929PLC001017, Toll Free (India) 1800-102-9408, 1800-425-1809 (BSNL) www.southindianbank.bank.in DEPT : SECRETARIAL Annexure I Disclosure pursuant to SEBI Master Circular HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements), Regulations, 2015; Brief details of options granted 27,36,230 options under Tranche 21 granted to 306 eligible employees as decided by Nomination and Remuneration Committee/Board at their meetings held today i.e. August 20,2026 as part of their non-cash variable pay/ incentive for the FY 2025-26. Whether the scheme is in terms of Yes SEBI (SBEB&SE) Regulations, 2021 (if applicable); Total number of shares covered by 27,36,230 shares ( if exercised fully) of face value of Re.1 each these options; Pricing formula; Based on Black Scholes Model, an option premium of Rs 30.96 per option is determined, which is applicable for an exercise price of Rs.22.50 being 50% Discount on Market price of Rs. 45.00 (NSE Closing Price on 19-08- 2026 being the closing price of stock exchange which recorded the highest trading volumes in equity shares of the Bank and trading day immediately preceding the date on which the grant of options, computed by Registered Valuer was approved and recommended to Board by Nomination and Remuneration Committee of Board on its meetings held on 20-08-2026). Number of options is calculated as per Black - Scholes option pricing model as per extant RBI guidelines. Options vested; Will be vested as per the SIB ESOS Scheme 2008 30% will vest after completion of 12 months from the date of grant 30 % will vest after completion of 24 months from the date of grant 40 % will vest after completion of 36 months from the date of grant Time within which option may be Within 5 years from the vesting date. exercised; Options exercised; N.A Money realized by exercise of N.A options; The total number of shares arising as a 27,36,230 shares ( if exercised fully) of face value of Re.1 each result of exercise of option; Options lapsed; Will be lapsed as per the SIB ESOS Scheme 2008 Variation of terms of options; N.A Brief details of significant terms; All terms and conditions as per the SIB ESOS Scheme 2008. Subsequent changes/cancellation N.A /exercise of such options Diluted earnings per share pursuant to N.A issue of equity shares on exercise of options The South Indian Bank Ltd., Regd. Office: Thrissur, Kerala Head Office: S.I.B. House, T.B. Road, P.B. No: 28, Thrissur - 680001, Kerala (Tel) 0487-2420 020, (Fax) 91 487-244 2021, e-mail: sibcorporate@sib.bank.in CIN: L65191KL 1929PLC001017, Toll Free (India) 1800-102-9408, 1800-425-1809 (BSNL) www.southindianbank.bank.in