Intimation for closure of Trading window

Date: 29/09/2026 To To, The Dy. Gen. Manager, National Stock Exchange of India Ltd. Corporate Relationship Dept., Exchange Plaza, BSE Limited Plot no. C/1, G Block PJ Tower, Dalal Street, Bandra-Kurla Complex, Bandra (E) Mumbai-400001 Mumbai-400051 Equity Scrip Code: 531845 Equity Scrip Name: ZENITHSTL Dear Sir/Madam, SUB: INTIMATION FOR CLOSING OF TRADING WINDOW We would like to inform you that pursuant to SEBI (Prohibition of Insider Trading) Regulation, 2015 read with BSE Circular No. LIST/COMP/01/2019-20 dated 02nd April, 2019, The Trading window for dealing in the securities of Zenith Steel Pipes & Industries Limited shall remain closed for all Designated Persons from Thursday, 01st October, 2026 till the expiry of 48 hours after the declaration of financial results for the half year ended 30th September, 2026. Kindly take the above on record and acknowledge receipt. For Zenith Steel Pipes & Industries Limited MINAL UMESH POTE Director DIN: 07163539 ZENITH STEEL PIPES & INDUSTRIES LIMITED Corp. Off.: Dalamal House, 1st Floor, 206, J.B. Marg, Nariman Point, Mumbai - 400021. India. Tel.: +91 22 6616 8400, Email: zenith@zenithsteelpipes.com, www.yashbirlagroup.com CIN: L29220MH1960PLCO11773 Registered Office: Industry House, 5th Floor, 159, Churchgate Reclamation, Mumbai 400020