Trading Window

Registered & Corporate Office: Dempo House, Campal, Panjim - Goa - 403 001., INDIA. Tel.: +91 (0832) 2441300 Fax: +91 (0832) 2427192 E-mail: goacarbon@gmail.com Website: www.goacarbon.com Corporate Identity Number - L23109GA1967PLC000076 COMPANY'S SCRIP CODE / SYMBOL: 509567 / GOACARBON ISIN: INE426D01013 (cid:9) Ref. No.: 202611)(110 18th September 2026 The General Manager The Listing Department Department of Corporate Services National Stock Exchange of India Ltd., (cid:9) Thru' NEAPS BSE Limited, (cid:9) Thru' Listing Centre Exchange Plaza, 25th Floor, P. J. Towers, Bandra Kuria Complex, Dalai Street, Bandra (East), Mumbai 400001 Mumbai 400051 Sub.: Closure of Trading Window Dear Sirs, This is to inform you that pursuant to the Company's Code of Internal Procedures and Conduct to regulate, monitor and report trading by insiders, the trading window for dealing in the Company's securities viz. Equity Shares, will remain closed from 21st September 2026 (i.e. 10 days prior to the end of the respective quarter) The trading window shall be opened 48 hours after the Financial Results for the quarter ended 30th September 2026 are made public. Yours faithfully, For Goa Carbon Limited Pravin Satardekar Company Secretary ACS 24380 Plans : GOA(cid:9) : Tel.: 0832-2860363 to 68, 2860336, 2861052 ISO 9001.2015 Fax: 2860364 E-mail: head_works@goacarbon.com PARADEEP : Tel: 07894462761, 09238110372 BUREAU VERITAS BUREAU VERITAS E-mail:pclvpster@gmail.com Certification Certification 0008 BILASPUR : Tel.: +91 (07752) 261220, 650720 Fax: +91 (07752) 261115 E-mail: bsp@goacarbon.com