Submission of Compliance Certificate under Regulation 74(5) of SEBI (DP) Regulations , 2018 for the quarter ended 30th September 2026

(An ISO 9001 : 2015 Company) Manufacturer of : Liquid & Gaseous Oxygen, Liquid & Gaseous Nitrogen, Liquid & Gaseous Nitrous Oxide, Liquid & Gaseous Medical Oxygen & Dissolved Acetylene Gas Regd. Office : S-1, 2nd Floor, Alsa Mall, New No.4 Old No.149, Montieth Road, Egmore, Chennai - 600 008. Ph : (044) 2852 0096 / 97 / 98 Fax : (044) 2852 0095 E-mail : sa@l noelgrsoup .com, contact@nolgroup.com, CIN No. L24111TN1974PLC006819 14-10-2026 Department of Corporate Services Bombay Stock Exchange Limited 22nd Floor, Phiroze]eeJeeBhoy Towers Dalal Street, Mumbai - 400 001 Dear Sir /Madam Scrip code: 507813 Subject: Confirmation Certificate under Regulation 74( 5) of SEBI (Depositories and Participants) Regulations, 2018. We herewith enclose the certificate issued by our registrar and share transfer agent M/s. Cameo Corporate Services Limited as per Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the Quarter/ Half year ended 30t September, 2026 for your information and records. Thanking you, Yours Faithfully, For NATIONAL OXYGEN LIMITED Rajesh Kumar Saraf Mauaging Director DIN: 00007353 Breathing Life Into Industry FACTORY 1 R.S. No. 126/4 A, Pondy - Villupuram Road, Thiruvandar Koil, Puducherry - 605 102. Phone : (0413) 2640448 Fax : (0413) 2640181 E-mail : nolp@o nnolgdroyup .com FACTORY 2 R-5, Sipcot Industrial Growth Centre, Perundurai, Erode - 638 052, Tamilnadu, Ph : (04294) 234145 E-mail : nolperundurai@nolgroup.com FACTORY 3 Plot No.4, Sidco Industrial Estate - Mathur (New) Kainankarai, Mathur - 622515. Pudukottai Dist Mobile : 99400 82462 E-mail : noltr@ inoclghroyup .com € 0) CAMEO CORPORATE SERVICES LIMITED Ref: CAM/NOX/74(5)/2026 1% October, 2026 NATIONAL OXYGEN LTD NO. 80, (OLD NO. 141) GREAMS ROAD, CHENNAI £ 600006 Dear Sir Subject: Certificate under of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended 30.09.2026 With reference to the above captioned subject, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30" 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 exchanges where the earlier Issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in register of members as the registered owner within stipulated time limit under captioned regulations. Thanking you Yours faithfully For Cameo Corporate Services Limited Assis anager (Shares) “Subramanian Building”, 1, Club House Road, Chennai - 600 002. Ph : 28460390 (5 Lines), 40020700 Online Investor Portal : https://wisdom.cameoindia.com, Website : www.cameoindia.com CIN No. : U67120TN1998PLC041613