Swan Defence and Heavy Industries Limited has informed the Exchange regarding the Trading Window Closure pursuant to SEBI (Prohibition of Insider Trading) Regulations, 2015.

SDHIL/SE/61/2026-27 28th September, 2026 BSE Limited National Stock Exchange of India Phiroze Jeejeebhoy Towers, Limited Dalal Street, Exchange Plaza, 5th Floor, Plot No. C/1, G Fort, Block, Bandra Kurla Complex, Mumbai – 400001 Bandra (E), Mumbai – 400051 BSE Scrip Code : 533107 NSE Symbol : SWANDEF Dear Sir/Madam, Sub: Closure of Trading Window (Trading Restriction Period) In terms of the Company’s Code of Conduct to regulate, monitor and report trading by insiders, the Trading Window for purchase / sale / dealing in the shares of the Company in any manner will be closed from Thursday, 1st October, 2026 for Designated Employees and their immediate relatives. The Trading Window will open 48 hours after the announcement/declaration of the Unaudited Financial Results for the quarter and half year ended 30th September, 2026 to the Stock Exchanges. The aforesaid period shall be deemed to be Trading Restriction Period in terms of SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended. Further pursuant to SEBI Circular dated 19th July, 2023, restriction has been imposed on the Designated Persons of the Company and their Immediate Relatives for trading on shares of the Company by freezing their PAN at security level through Designated Depository. We request you to take this on record and treat the same as compliance with the applicable provisions of the Listing Regulations. Thank you. Yours faithfully, For Swan Defence and Heavy Industries Limited [formerly known as Reliance Naval and Engineering Limited] Priti P. Dave Company Secretary & Compliance Officer ACS:- 19469 SWAN DEFENCE AND HEAVY INDUSTRIES LIMITED (Formerly known as Reliance Naval and Engineering Limited) Registered Office: Pipavav Port, Post Ucchaiya, Via-Rajula, Dist. Amreli - 365 560, Gujarat Corporate Office: Uttam House, 3rd Floor, Plot No. 69, P D’Mello Road, Carnac Bunder, Mumbai – 400 009 +91 22 4058 7300 | info@swan.co.in | www.sdhi.co.in | CIN - L35110GJ1997PLC033193