Analysts/Institutional Investor Meet/Con. Call Updates

GSPL TRANSMISSION LIMITED Regd. Office: GTL Bhavan, E-18, GIDC Electronics Estate, Nr. K-7 Circle, Sector-26, Gandhinagar - 382028, Gujarat, India Tel : +91-79-23268500/600 Website: www.gspltrans.com Ref: GTL/S&L/2026-27 Date: 31s October, 2026 To, To, The Manager (Listing) The Manager (Listing) The BSE Limited, The National Stock Exchange of India Ltd. Phiroze Jeejeebhoy Towers, "Exchange Plaza", Bandra-Kurla Dalal Street, Mumbai- 400 001 Complex, Bandra (E), Mumbai - 400 051 Scrip Code: 544801 Company Symbol: GSPLTRANS Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Respected Sir/Madam, We refer to our earlier announcement dated October 29, 2026, intimating the schedule of the Post Results Earnings Conference Call for the Quarter and Half Year ended September 30, 2026. Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform you that the aforesaid Post Results Earnings Conference Call with analyst has been rescheduled and will now be held on Wednesday, November 4, 2026, at 05:00 P.M. (IST). The conference call will include a brief discussion on the Company's earnings performance, followed by an interactive Question & Answer session. The revised Invite for the said Conference Call is enclosed herewith. The Invite is subject to changes due to any exigency on behalf of the Investors or the Company. The revised Invite is also being uploaded on the Company's website i.e. www.gspltrans.com Kindly take the same on your record. Yours Faithfully, For GSPL Transmission Limited, Rajeshwari Sharma Company Secretary CIN: U49300GJ2024SGC153672 GSPL TRANSMISSION LIMITED Q2 & H1FY27 Earnings Concall on 04 November 2026 at 5:00 PM IST Gandhinagar, 31 October 2026: GSPL Transmission Limited (NSE: GSPLTRANS, BSE: 544801), a pure play natural gas transmission company, will announce their Q2 & H1FY27 results on Tuesday, 03 November 2026. Following the announcement, the management of the Company will host an Earnings Call on Wednesday, 04 November 2026 at 5:00 PM IST. The details are. Date: Wednesday, November 04, 2026 Time: 5:00 PM IST Duration: 60 minutes + 91 22 6280 1107 Universal Dail-in numbers + 91 22 7115 8008 UK – 08081011573 USA – 18667462133 International Toll Free Singapore – 8001012045 Hong Kong – 800964448 • Step 1: Pre-register Click Here. You will receive an email confirmation with the call details on the registered email address. Pre-Registration Facility • Step 2: Dial into the call on the Conference Call date, you will be directly connected to the call. About GSPL Transmission Ltd (GTL) “GSPL Transmission Limited (GTL) is a pure-play natural gas transmission company operating an approximately 2,900 km gas transmission network Gujarat. The Company operates second largest gas network in India which connects key gas supply sources with major demand centres and serves a diversified customer base across City Gas Distribution (CGD), refineries, fertilizers, power, steel, chemicals and other industrial sectors. GTL operates on an open-access, non-discriminatory basis, with transmission tariffs determined under the applicable PNGRB regulatory framework. The Company is focused on expanding its transmission infrastructure and strengthening connectivity to emerging demand centres. GTL through its Joint Ventures has access to natural gas customers beyond Gujarat extending its economic footprint across multiple states.” For Further information, please contact: Amita Dave (Manager) Hiral Keniya| Vikash Verma | Yashvi Jain GSPL Transmission Limited Ernst & Young LLP Email: amita.d@gspltrans.com Email: hiral.keniya@in.ey.com | vikash.verma1@in.ey.com |yashvi.jain1@in.ey.com +91 9029662801 | +91 9664009029 | +91 8905954390