Trading window shall remain closed from 1st October, 2026 till the completion of 48 hours after the declaration of the Unaudited Financial Results for the Quarter ended 30th September, 2026.

CHASE BRIGHT STEEL LTD (Est. Since 1959) 7t October, 2026 Dy. General Manager Department of Corporate Services Bombay Stock Exchange Limited Phiroze Jeejeebhoy Tower 25th floor, Dalal Street, Mumbai - 400 001. Sub.: Intimation of Closure of Trading Window under the SEBI (Prohibition of Insider Trading) Regulations, 2015 Ref.: Scrip Code 504671 Dear Sir/Madam, Pursuant to the SEBI (Prohibition of Insider Trading) Regulations 2015 and as per Company’s Code of Conduct for the Prevention of Insider Trading and Code of Corporate Disclosure Practices, the Trading Window shall remain closed for trading in Securities of the Company w.e.f. 1st October, 2026 till the completion of 48 hours after declaration of the Unaudited Financial Results for the Quarter ended 30t September, 2026. Accordingly, all the Designated Persons and their immediate relatives are being intimated not to enter into any transaction involving dealing/trading in shares of the Company during the aforesaid period of closure of Trading Window. Further, Board Meeting date, to consider, approve and take on record the Unaudited Financial Results for the Quarter ended 30% September, 2026 shall be intimated to the Stock Exchanges in due course of time Thanking you, For Chase Bright Steel Ltd. Avinash Jajodia Managing Director (DIN: 00074886) Regd. Off & Works: D-115, Steel Chamber Tower, Plot No. 514, Steel Market Complex, Kalamboli - 410218, Maharashtra, India. Mob.: +91 (0) 9820211194 E-mail.: info@chasebrightsteel.com Website.: www.chasebrightsteel.com CIN - 199999MH1959PLC011479