Certificate under SEBI (Depositories and Participants) Regulations, 2018

Date: October 9, 2026 To, To, Listing Department, Listing Department, BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, 5th floor, Plot no. C/1, G Block Dalal Street – Fort Bandra Kurla Complex, Bandra (East), Mumbai 400 001 Mumbai - 400 051 Scrip Code: 544578 NSE Symbol: RUBICON ISIN - INE506V01022 Sub: Certificate under Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended September 30, 2026. Dear Madam/Sir, Please find enclosed herewith the Certificate dated October 3, 2026, issued by MUFG Intime India Private Limited, Registrar and Share Transfer Agent of the Company, confirming the compliance under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018, for the quarter ended September 30, 2026. Kindly take the above information on record. Thanking you, Yours faithfully, For Rubicon Research Limited (Formerly known as Rubicon Research Private Limited) Deepashree Tanksale Company Secretary & Compliance Officer Membership No.: A28132 Encl.: As Above Rubicon Research Limited | CIN: L73100MH1999PLC119744 Registered Office: Plot No. B-75, MedOne House, Road No. 33, Wagle Estate, Thane West, PIN – 400 604, Maharashtra, India �� +91-22-61414000 / 50414000 | ����� reachus@rubicon.co.in | � www.rubicon.co.in MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) CIN: U67190MH1999PTC118368 Registered Address: C-101, Embassy 247, L.B.S. Marg, Vikhroli (West), Mumbai - 400083. Tel: +91 22 4918 6000 www.in.mpms.mufg.com Date : 03-10-2026 The Compliance Officer/ Company Secretary RUBICON RESEARCH LIMITED MEDONE HOUSE, B-75 ROAD NO. 33, WAGLE ESTATE THANE WEST THANE PINCODE : 400604 Sub : Confirmation Certificate under Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018. Dear Sir/Madam, In reference to the above captioned regulation, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 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 exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been confirmed/rejected and the security certificates received were mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in the register of members as the registered owner within the prescribed timelines. We request you to kindly take note of the above in your records. Thanking you, Yours faithfully, For MUFG Intime India Private Limited (Formerly Link Intime India Private Limited) Ashok Shetty Sr. Vice President-Corporate Registry MUFG Intime India Private Limited A part of MUFG Corporate Markets, a division of MUFG Pension & Market Services