ESOP/ESOS/ESPS

www.stl.tech September 10, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, 5th Floor, Phiroze Jeejeebhoy Towers, Plot No. C-1, G Block, Dalal Street, Bandra Kurla Complex, Bandra (East) Mumbai 400 001 Mumbai 400051 Scrip ID - STLTECH Scrip Code – 532374 Subject: Allotment of Shares under Employee Stock Option Scheme Dear Sir/Madam, This is to inform that the Authorization and Allotment Committee of the Board of Directors of the Company at its meeting held today i.e. September 10, 2026 has allotted equity shares to those grantees who had exercised their options under the Company's Employee Stock Option Scheme – 2010 and 2016. We hereby confirm that the aforesaid shares will rank pari passu with the existing shares of the Company in all respects. Post allotment the Share Capital of the Company is as under: Existing Share Capital (no.) 513911242 Allotment for ESOP (no.) 146191 Post Allotment share capital (no.) 514057433 Please take this on record. Thank you. Yours faithfully, For Sterlite Technologies Limited Mrunal Asawadekar Company Secretary & Compliance Officer Membership no.: A 24346 Sterlite Technologies Limited Registered office: 4th Floor, Godrej Millennium, Koregaon Road 9, STS 12/1, Pune, Maharashtra- 41001, India. CIN - L31300PN2000PLC202408