Outcome of Board Meeting

SEC/137/2026 June 25, 2026 BSE Limited, National Stock Exchange of India Ltd., Corporate Relationship Department, Listing Department, Phiroze Jeejeebhoy Towers, Exchange Plaza, 5th Floor, Dalal Street, Bandra-Kurla Complex, Mumbai 400001. Bandra (E), Mumbai 400051. Scrip code: 542867 Symbol: CSBBANK Dear Sir/Madam, Outcome of Board Meeting held on Thursday, June 25, 2026 – Approval of CSB Bank Employee Stock Option Scheme 2026 -------------------------------------------------------------------------------------------------------------------------------------------- Pursuant to Regulation 30 read with Schedule III of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 ("SEBI Listing Regulations”) we wish to inform you that, based on the recommendation of the Nomination & Remuneration Committee ("NRC"), the Board of Directors of the Bank (the “Board”), in their meeting held today, i.e., on Thursday, June 25, 2026, have inter alia, considered and approved CSB Bank Employee Stock Option Scheme 2026 (“ESOS 2026” / “Scheme”), as per SEBI (Share Based Employee Benefits and Sweat Equity) Regulations, 2021. The ESOS 2026 is subject to the approval of members of the Bank, and the Bank will seek approval in due course. The disclosures as required under Regulation 30 of the SEBI Listing Regulations read with SEBI Master Circular No. SEBI/HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, is enclosed as Annexure - I. The meeting of the Board of Directors commenced at 10.45 a.m. and concluded at 02.15 p.m. Kindly take the same on record. Thanking You, Yours faithfully, Sijo Varghese Company Secretary CSB Bank Limited Regd. Office: CSB Bhavan, St. Mary's College Road, Thrissur – 680020, Kerala, India. Tel: +91 487–2333020 | Fax: +91 487–2338764 | Website: www.csb.bank.in | Email: secretarial@csb.bank.in |CIN: L65191KL1920PLC000175 Annexure I Disclosures required under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read along with SEBI Master Circular No. SEBI/HO/49/14/14(7)2025-CFD- POD2/I/3762/2026 dated January 30, 2026 Sl. Details of events that need to be Information of such event (s) No provided ESOS 2026 1. Brief details of options granted The total number of stock options proposed to be granted under the ESOS 2026 shall not exceed 20,00,000 (Twenty lakh only) options. 2. Whether the scheme is in terms of SEBI (SBEB) Regulations, 2021 (if applicable) 3. Total number of shares covered by these 20,00,000 (Twenty lakh only) each fully paid-up. options 4. Pricing formula The Exercise Price per Option shall be determined by the NRC which shall not be less than the face value of Shares as on Grant Date. Market Price means latest available closing price on a recognised Stock Exchange on which the Shares of the Bank are listed on the date immediately prior to the date of the meeting of the Committee on which the Grant is made. 5. Options vested Not applicable at this stage 6. Time within which option may be Vesting Period for any Options granted under this exercised Scheme shall be subject to statutory minimum of 1 (One) year from the Grant Date during which no Vesting shall be allowed. Subject to this statutory minimum period, any Vesting prescribed for any Grant shall be over a staggered Vesting schedule of 3 (Three) years and maximum of 10 (Ten) years from the Grant Date. 7. Options exercised 8. Money realized by exercise of options 9. The total number of shares arising as a Not applicable at this stage result of exercise of option 10. Options lapsed 11. Variation of terms of options 12. Brief details of significant terms The ESOS 2026 contemplates grant of options to the eligible employees of the Bank. The Nomination and Remuneration Committee (NRC) of the Board shall act as Compensation Committee for the supervision and administration of ESOS 2026. The total number of stock options proposed to be granted under the ESOS 2026 shall not exceed 20,00,000 (Twenty lakh only) options, in one or more tranches, from time to time. CSB Bank Limited Regd. Office: CSB Bhavan, St. Mary's College Road, Thrissur – 680020, Kerala, India. Tel: +91 487–2333020 | Fax: +91 487–2338764 | Website: www.csb.bank.in | Email: secretarial@csb.bank.in |CIN: L65191KL1920PLC000175 The Exercise Period in respect of a Vested Option shall be a period commencing from the relevant Vesting date of such Option and shall end with the expiry of 10 (Ten) years or such other shorter period as approved by the Committee from the Grant Date of such Option. Exercise Period in case of separations will be as per scheme. 13. Subsequent changes or cancellation or exercise of such options 14. Diluted earnings per share pursuant to Not applicable at this stage issue of equity shares on exercise of options CSB Bank Limited Regd. Office: CSB Bhavan, St. Mary's College Road, Thrissur – 680020, Kerala, India. Tel: +91 487–2333020 | Fax: +91 487–2338764 | Website: www.csb.bank.in | Email: secretarial@csb.bank.in |CIN: L65191KL1920PLC000175