Detailed letter attached.

04th August, 2026 The General Manager The Manager The Corporate Relationship Department Listing Department BSE Limited National Stock Exchange of India 1st floor, New Trading Ring, Limited Rotunda Building “Exchange Plaza”, C-1, Block G P J Towers Bandra-Kurla Complex Dalal Street, Fort Bandra (E) Mumbai 400 001 Mumbai 400 051 BSE Scrip Code: 500249 NSE Symbol: KSB Subject: Unaudited Financial Results and Limited Review Report of the Auditors for the quarter and half year ended 30th June, 2026. Ref: Regulation 33 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sirs/Madam, Pursuant to Regulation 33 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 please find enclosed herewith Unaudited Financial Results along with “Limited Review Report” issued by the Auditors, M/s B S R & Co. LLP, Pune, for the quarter and half year ended 30th June, 2026. The Board Meeting commenced at 12.20 p.m. (IST) and concluded at 02.45 p.m. (IST). Kindly take the same on your records. Yours faithfully, For KSB Limited Shraddha Kavathekar Company Secretary Encl. as above Mail to : (Head Office) KSB Limited (Formerly KSB Pumps Limited), Mumbai - Pune Road, Pimpri, Pune - 411 018. (India) Tel. : +91 20 2710 1000 Fax : +91 20 2742 6000 Visit us at : www.ksbindia.co.in Registered Office : Office No. 601, Runwal R-Square, L.B.S. Marg, Mulund (West), Mumbai- 400 080, Tel. : +91 (022) 2168 1300 Zonal Offices : Chennai • Kolkata • Mumbai • NOIDA CIN : L29120MH1960PLC011635