The Trading Window for dealing in securities of the Company shall remain closed for Designated Persons and their Immediate Relatives with effect from 1st October 2026 till the expiry of 48 hours after the declaration of unaudited financial results (standalone and consolidated) of the Company for the quarter and half year ending 30th September 2026. The date of the Board Meeting for consideration of the said financial results will be intimated in due course.

USHA MARTIN Date: 28th September 2026 The Manager The Secretary Societe de la Bourse de National Stock Exchange of India Ltd. BSE Limited Luxembourg Exchange Plaza, 5th Floor, Phiroze Jeejeebhoy Towers, 35A Bouleverd Joseph II Plot No. C/1, G Block, Dalal Street L-1840, Luxembourg Bandra Kurla Complex, Bandra Mumbai – 400 001 [Scrip Code: US9173002042] Mumbai – 400 051 [Scrip Code: 517146] [Symbol: USHAMART] Dear Sir/Madam, Re.: Notice of Closure of Trading Window In accordance with the Company’s Code of Conduct to Regulate, Monitor and Report Trading by Designated Persons and their Immediate Relatives adopted under SEBI (Prohibition of Insider Trading) Regulations, 2015, as amended from time to time, please be informed that the ‘Trading Window’ for dealing in securities of the Company shall remain closed for ‘Designated Persons and their immediate relatives’ with effect from 1st October 2026 till the expiry of 48 hours after the declaration of unaudited financial results (standalone and consolidated) of the Company for the quarter and half year ending 30th September 2026. The date of the Board Meeting for consideration of the said financial results will be intimated in due course. This is for your information and records. Thanking you, Yours faithfully, For Usha Martin Limited Manish Agarwal Company Secretary & Compliance Officer USHA MARTIN LIMITED CIN: L31400WB1986PLC091621 (rr) Regd. Office: 2A Shakespeare 0 (00 9133) 71006300 B contact@ushamartin.co.in 'v Sarani, Kolkata -700071, India .C:::::,. (00 91 33) 71006492 www.ushamartin.com