Trading Window

Registered & Corporate Office: Dempo House,(cid:9) Panjim - Goa -(cid:9) 001., INDIA. Tel.. +91 (0832) 2441300 Fax. +91 f !".."-;32) 2427192 E-mail: goacarbon@gmail.com Website: www.goacarbon.com Corporate Identity Number - L23109GA1967PLC000076 COMPANY'S SCRIP CODE / SYMBOL: 509567 / GOACARBON(cid:9) ISIN: INE426D01013 (cid:9) Ref. No.: 20261V1\9 18th June 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, Bandra Kurla Complex, 25th Floor, P. J. Towers, Dalal 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 June 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 June 2026 are made public. Yours faithfully, For Goa Carbon Limited Pravin Satardekar Company Secretary ACS 24380 Plants : GOA(cid:9) : Tel: 0832-2860363 to 68, 2860336, 2861052 Fax: 2860364 E-mail: head_works@goacarbon.com PARADEEP(cid:9) Tel: 07894462761, 09238110372 BUREAU VERITAS BUREAU VERITAS E-mail:polvpsterngmail.com Certification KAS Certification '4ASYSTE'MMS "' BILASPUR : Tel.: +91 (07752) 261220, 650720 0008 Fax: +91 (07752) 261115 E-mail: bsp@goacarbon.com