The Trading Window for dealing in securities of the Company will remain closed for the Designated Persons with effect from 01st October 2026 (Thursday) till 48 hours after the declaration of the Un-audited Financial Results of the Company for the quarter and half-year ended September 30, 2026

Seshasayee Paper and Boards Limited Regd Office & Works : Pallipalayam, Namakkal District, Erode-638007, Tamilnadu, India.Ph : 91-4288 -240221to240228, Fax: 91-4288-240229 email :edoff@spbltd.com Web: www.spbltd.com CIN:L21012TZ1960PLC000364 Ref: SHI S-61 977 2026.09.28 National Stock Exchange of India Limited Corporate Services Department Exchange Plaza, 5th Floor BSELimited Plot No CI1, G Block Floor 25, PJ Towers Bandra - Kurla Complex, Bandra (E) Dalal Street Mumbai 400 051 Mumbai 400 001 Scrip Code: SESHAPAPER Scrip Code: 502450 Dear Sir, Sub: Notice of Closure of Trading Window for Designated Persons. Ref: (i) Clause 4 of Schedule B (Dealing with Monitoring of Trade by Designated Persons) of SEBI(PIT) Regulations, 2015. (ii) BSE Circular to Listed Companies vide letter ref. LISTI COMPI 011 2019-20 dated 2nd April 2019. (iii) NSE Circular to Listed Companies vide letter ref. NSEI CMU 2019 I 11 dated 2nd April 2019. In compliance with the SEBI (Prohibition of Insider Trading) Regulations, 2015 as amended and Circulars issued by Stock Exchanges vide letters cited under above under Ref. No. ii & iii above and pursuant to Clause 10 (ii) of Company's Code of Conduct to Regulate, Monitor and Report Trading by Designated Persons", the trading window for dealing in securities of the Company will remain closed for the Designated Persons with effect from opt October, 2026 (Thursday) till 48 hours after the declaration of the Un-audited Financial Results of the Company for the quarter and half-year ended September 30, 2026. Thanking you, Yours faithfully For Seshasayee Paper and Boards Limited S SRINIVAS Director (Finance) & Secretary DIN: 09713128