Communication on tax deduction at source on Dividend

Date: July 29, 2026 To, To, The Manager The Manager 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 Sub: Communica(cid:415)on on tax deduc(cid:415)on at source on Dividend Dear Madam/ Sir, We are enclosing herewith a copy of the e-mail communica(cid:415)on dated July 29, 2026, which has been sent to the members of the Company whose e-mail address are registered with the MUFG In(cid:415)me India Private Limited (formerly Link In(cid:415)me India Private Limited), Registrar & Share Transfer Agent / Depository Par(cid:415)cipant / Company, explaining the applicability of tax deduc(cid:415)on and the process to be followed by eligible members to ensure appropriate tax deduc(cid:415)on on the final dividend for financial year 2025-26, if declared at the 27th Annual General Mee(cid:415)ng of the Company. The aforesaid communica(cid:415)on is available on the website of the Company at www.rubicon.co.in. Kindly take the above informa(cid:415)on on record. Yours faithfully, For Rubicon Research Limited (Formerly known as Rubicon Research Private Limited) Deepashree Tanksale Company Secretary and Compliance Officer M. No. A28132 Encl. as above Rubicon Research Limited (formerly known as Rubicon Research Private Limited) | CIN: L73100MH1999PLC119744 Registered Office: Plot No. B-75, MedOne House, Road No. 33, Wagle Estate, Thane West, PIN – 400 604, Maharashtra, India (cid:44562)(cid:44563) +91-22-61414000 / 50414000 | (cid:44604)(cid:44605)(cid:44606)(cid:44607)(cid:44608) reachus@rubicon.co.in | (cid:33362) www.rubicon.co.in Rubicon Research Limited (formerly known as Rubicon Research Private Limited) CIN: L73100MH1999PLC119744 Regd. O(cid:431)ice: Plot No. B-75, MedOne House, Road No. 33 Wagle Estate, Thane West, Maharashtra, India, 400604. E-mail: investors@rubicon.co.in • Website: www.rubicon.co.in • Tel: +91 22 61414 000 Date: July 29, 2026 THIS COMMUNICATION IS IMPORTANT AND REQUIRES YOUR IMMEDIATE ATTENTION Dear Shareholder, We wish to inform you that the Board of Directors (“Board”) of Rubicon Research Limited (“the Company”) at its Meeting held on May 29, 2026, has recommended a final dividend of Rs. 1.50 per Equity Share for the financial year ended March 31, 2026, subject to the approval of the shareholders at the ensuing 27th Annual General Meeting (“AGM”) scheduled to be held on Wednesday, August 26, 2026. The dividend, if approved by the shareholders at the AGM, shall be paid to those shareholders whose names appear in the Register of Members of the Company or whose names appear as beneficial owners in the records of the Depositories as at the close of business hours on Friday, August 7, 2026 ("Record Date"). Pursuant to the provisions of the Income Tax Act, 2025 (“Act”), dividend is taxable in the hands of shareholders and the Company is required to deduct tax at source (“TDS”) at the applicable rates while making the dividend payment. The applicable rate of TDS will depend upon the residential status of the shareholder and the documents, declarations or certificates, if any, submitted by the shareholder in accordance with the provisions of the Act. Shareholders are requested to ensure that their PAN, tax residential status, e-mail address, bank account details and other KYC particulars are duly updated with their respective Depository Participant(s) in respect of shares held in dematerialised form before the Record Date to facilitate correct deduction of tax, wherever applicable. The applicable TDS provisions are summarised below. Table 1: Resident Shareholders: Individual Category of Tax Exemption Applicability/ Documents required Shareholder Deduction Rate (a) No tax shall be deducted from the dividend payable to resident individuals where:  the aggregate dividend payable during Tax Year 2026-27 does not exceed Rs. 10,000; or  a valid electronically filed Form 121 (Annexure 1), duly completed and satisfying the prescribed conditions under the Act, is furnished; or  a valid exemption certificate issued by the Income-tax Department is furnished. Resident Individuals 10% (b) Where a shareholder furnishes a valid certificate under Section (having valid 395(1) of the Act for deduction of tax at a lower or nil rate, tax shall be PAN) deducted at the rate specified therein, subject to submission of a self- attested copy of the certificate. (c)Resident shareholders holding shares in dematerialised form may submit Form 121 electronically through their Depository (CDSL/NSDL) for all demat holdings linked to their PAN. In such cases, separate submission of the form to the Company or its Registrar and Share Transfer Agent is not required. The details for submission of Form 121 - Part A through CDSL and NSDL are as under: Particulars CDSL NSDL Submission CDSL SPEED-e Mobile App platform Electronic or IDeAS submission platform Web link to https://www.cd 1. Visit the NSDL access slindia.com/For portal and register for m121/Form121 NSDL e-Services Login.aspx Category of Tax Exemption Applicability/ Documents required Shareholder Deduction Rate (IDeAS), if not already registered. 2. https://eservices.n sdl.com/SecureWeb/ HomeLogin.jsp 3. Upon successful registration, log in as a SPEED-e Users. 4. From the left-hand menu, select “Form 121-Part A submission, enter the required details and submit the form. Resident In case, shareholders do not have PAN/ invalid PAN/PAN is not linked Individuals 20% with Aadhaar/not registered their valid PAN details in their account, as (not having per Section 397(2) of the Act. PAN/ discrepancy in PAN) Non- Individual NIL /tax shall be deducted on the dividend payable to following resident shareholders on submission of self-declaration (as per format attached) as listed below: Category of Shareholder Exemption Applicability/ Documents required Insurance Companies  Self-declaration (refer format) by shareholder qualifying as Insurer as per Section 2(7A) of the Insurance Act, 1938;  Self-attested copy of IRDA registration certificate; and  Self-attested copy of PAN Mutual Funds  Self-declaration (refer format) that it is registered with SEBI and is notified under Schedule VII (S. No. 20 and 21) of the Act;  Self-attested copy of certification of registration with SEBI; and  Self-attested copy of PAN Alternative Investment Fund (AIF)  Self-declaration (refer format) that its income is established in India eligible for exemption under section Schedule V, Table, S. No. 1 of the Act, and they are registered with SEBI as Category I or Category II AIF;  Self-attested certificate of AIF registration with SEBI;  Self-attested copy of PAN New Pension System Trust  Self-declaration (refer format) that the shareholder is eligible for exemption under Schedule VII, Table, Serial No. 41 of the Act;  Self-attested copies of registration documents; and  Self-attested copy of PAN Other Shareholders (HUF/LLP/AOP/Companies/Firm): At 10% on the entire amount of dividend to be received by the shareholder without any threshold. However, on submission of Self declaration along with self-attested copy of documentary evidence supporting the exemption and self-attested copy of PAN card. Note: Shareholders who have provided a valid certificate issued u/s 395 of the Act for lower / Nil rate of deduction or an exemption certificate issued by the income tax authorities, shall be considered on submission of self-attested copy of the same along with self-declaration. Table 2: Non-resident Shareholders: Category of shareholder Tax Exemption Applicability/ Documents required Deduction Rate Non-Resident Shareholders Tax shall be deducted at the rate of 20% (plus applicable (including FIIs/FPIs) surcharge and cess) in accordance with the provisions 20% of the Income-tax Act, 2025. Non-resident sharehold [Showing first 8,000 characters — download PDF for full document]