Please find attached the certificate under regulation 74(5) of SEBI (DP) Regulations, 2018, for the quarter ended September 30, 2026.

THE SOUTHERN GAS LIMITED Regd. Office Meera Classic, Phase U, Gogol, Borda, Post Fatorda, Margao, Goa - 403 602 Tel.: (0832)2724863, 2724864, 2724865 Email: sglgoa@southerngasindia.com GSTIN:30AAACT6201H1ZZ Website: www.southerngasindia.com Since 1963 PAN: AAACT6201H CIN: L24111GA1963PLC000562 October 09, 2026 Department of Corporate Services, BSE Limited Phiroze Jeejeebhoy, Towers, Dalal Street, Mumbai- 400 001. Scrip Code: 509910 Sub: Certificate under regulation 74(5) of SEBI {Depositories and Participants) Regulations, 2018,as amended, for the quarter ended June 30, 2026. Dear Sir/Madam, In compliance with Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, as amended, please find enclosed herewith a copy of the certificate received from Bigshare Services Pvt. Ltd, Registrar and Share Transfer Agent of the Company, for the quarter ended September 30, 2026. Kindly take the same on record. Thanking you. For The Southern Gas Limited Roshan Varshney Company Secretary & Compliance Officer Encl: as above Production Units: • Bengaluru - 7338667282/83 • Bhadravati - (08282) 270561, 270397 • Harihar - (08192) 241656 • Hubballi - (0836) 2970855 • Mysuru - (0821) 2403680, 2974364 • Kozhikode - (0495) 2482311 • Kochi - (0484) 2546895 • Thiruvananthapuram - (0471) 2705511, 2704161 • Tiruchirappalli - (0431) 2731124, 2731125 AN ISO CERTIFIED Ref No. BSS/74(5) Date: 09/10/2026 THE SOUTHERN GAS LIMITED MEERA CLASSIC, PHASE-II, GOGOL, BORDA, MARGAO GOA MARGAO- 403602 Dear Sir/Madam, Sub: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 30th September 2026 . Ref: NSDL/CIR/II/5/2019 dated 25th January 2019 DSL/OPS/RTA/POLICY/2019/14 dated 25th January 2019. SEBI vide its letter ref no. MRD/DOP2/DSA2/OW/2019/2498/1 dated 24/01/2019 In reference to the above – captioned regulation we hereby confirm that the securities received from the depository Participants for dematerialization up to 30th September 2026., were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchange where the earlier issued securities are listed. We hereby confirm that the security certificates received for dematerialization have been mutilated & cancelled after due verification by the depository Participant and the name of the depositories have been substituted in register of members as registered owner within 15 days of receipt of certificate of securities. We request you to kindly take note of the above in your records. This is for your information. Thanking You, Yours faithfully, For Bigshare Services Pvt. Ltd., Sandeep More Authorised Signatory