Closure of Trading Window for the quarter and half year ending 30th September, 2026.

23rd September, 2026 The Manager, The General Manager, Listing Department, Department of Corporate Services, National Stock Exchange of India Ltd, BSE Limited, Exchange Plaza, 1st Floor, New Trading Ring, Plot No. – C – 1, G Block, Rotunda Building, Bandra – Kurla Complex, P.J. Towers, Bandra (East), Dalal Street, Fort, Mumbai – 400051 Mumbai – 400001 NSE Code – PCBL BSE Code (Equity) – 506590 BSE Code (Debt) – 975353 Dear Sir, Sub:- Closure of Trading Window Pursuant to the provisions of the Securities and Exchange Board of India (Prohibition of Insider Trading) Regulations, 2015 and Insider Trading Prohibition Code of the Company (“the Code”), the Trading Window for dealing in the securities of the Company by all Designated Persons and their Immediate Relatives as defined under the Code, shall be closed from Thursday, 1st October, 2026 till the expiry of 48 hours after the declaration of the Unaudited Financial Results of the Company for the quarter and half year ending 30th September, 2026. During this period, ‘Designated Persons’ and their immediate relatives are not permitted to trade in the securities of the Company. We request you to take the afore-mentioned in record and oblige. Yours faithfully, For PCBL CHEMICAL LIMITED K. Mukherjee Company Secretary and Chief Legal Officer