General Updates

Sensitivity: Internal RHI MAGNESITA RHI MAGNESITA INDIA LTD. (Formerly Orient Refractories Ltd.) 19th & 20th Floor, DLF Square, M-Block, Phase Il, Jacranda Marg, DLF City, Gurugram, Haryana-122002 T +91 124 4299000 E corporate.india@rhimagnesita.com www.rhimagnesitaindia.com 1 September 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza, Plot No. C/1, G Block, Dalal Street Bandra Kurla Complex, Bandra (East) Mumbai-400 001, India Mumbai-400 051, India BSE Scrip Code: 534076 NSE Symbol: RHIM Dear Sir/ Ma’am, Sub: Disclosure under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (SEBI Listing Regulations) - Communication sent to shareholders regarding Tax Deduction at Source (TDS) on Dividend Income Pursuantto Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”), we wish to inform you that a detailed communication has been sent to all shareholders on 31 August 2026 regarding the process and documentation required to claim exemption from Tax Deduction at Source (TDS) on dividend income, in connection with the payment of Final Dividend for the financial year 2025- Please find enclosed herewith a copy of the email sent to shareholders outlining the applicable TDS provisions and the steps to be followed for submission of relevant documents to avail exemption, if eligible. The aforementioned communication sent to the shareholders is also available on the website of the Company https://www.rhimagnesitaindia.com/ This is for your information and records. Yours faithfully, For RHI Magnesita India Limited daay Sanjay Kumar Company Secretary (ICSI Membership No. -A17021) Encls: as above Registered Office: Unit No.705, 7th Floor, Lodha Supremus, Kanjurmarg Village Road, Kanjurmarg (East), Mumbai-400042 Tel : 022 - 4985120 CIN: L28113MH2010PLC312871 RHI Magnesita India Limited CIN: L28113MH2010PLC312871 Registered Office: Unit No.705, 7th Floor, Lodha Supremus, Kanjurmarg Village Road, Kanjurmarg (East), Mumbai-400042 Corporate Office: 19th & 20th Floor, DLF Square, M-Block, Phase II, Jacaranda Marg, DLF City, Gurugram, Haryana 122002 Tel: +91 124 4299000, +91 22 49851200 Email ID: investors.india@rhimagnesita.com ; Website: www.rhimagnesitaindia.com Date: August 31, 2026 Name of Shareholder: XXXXXXXXXXXXXXXXXXXX Folio No. / DP Id & Client Id: XXXXXXXXXXXXXXX Subject: RHI Magnesita India Limited - General Communication on Tax Deduction at Source (‘TDS’) on Dividend Dear Shareholder, This is to inform you that the Board of Directors of RHI Magnesita India Limited (‘the Company’) at its meeting held on Friday, May 29, 2026, had recommended a final dividend of Rs. 2.50/- per Equity Share of the face value of Re. 1/- each for the financial year 2025-26, subject to the approval of shareholders of the Company at the ensuing Annual General Meeting, which is scheduled to be held on Tuesday, September 29, 2026. The said dividend will be payable to those shareholders whose names appear in the Register of Members of the Company or in the records of the Depositories as beneficial owners of the shares as at the close of business hours on Monday, September 14, 2026 (‘Record date’). In terms of the provisions of The Income Tax Act, 2025 (‘the IT Act’), as amended by The Finance Act, 2026, mandates that dividend paid and distributed by a Company shall be taxable in the hands of shareholders. Hence, the Company is required to deduct TDS at the rates applicable on the amount distributed to the Shareholders at the time of making the payment of the final dividend, if declared at the above AGM. The TDS rate may vary depending on the residential status of the shareholders and the documents submitted to and accepted by the Company in accordance with the provisions of the IT Act. As per Section 262 of the IT Act, every person who has been allotted a PAN and who is eligible to obtain Aadhaar, shall be required to link the PAN with Aadhaar. In case of failure to comply to this, the PAN allotted shall be deemed to be invalid/ inoperative and tax shall be deducted at higher rates as prescribed under the IT Act. The Company will rely on the reports downloaded from the reporting portal of the income tax department for checking validity of PANs/ inoperative PANs. A non-resident shareholder who does not have Permanent establishment in India is excluded from the scope of the above provision/s. Applicable TDS Provisions under the IT Act for Resident and Non-Resident Shareholders (Individual/Non-Individual) along with requisite documents is stated as follows: For Resident Individual Shareholders: Shareholders having valid Permanent Account 10% on the amount of dividend or as notified by the Number (PAN) Government of India as per Section 393(1) of the IT Act. Shareholders not having PAN/ have not 20% on the amount of dividend or as notified by the registered their valid PAN / invalid PAN / inoperative Government of India as per Section 397(2) of the IT Act PAN / PAN Aadhaar not linked Please note that for the purpose of determining the TDS rate, Company will verify the status (i.e., PAN-Aadhaar linkage) from the Government enabled online facility and deduct TDS accordingly based on the output received from the facility. Order under Section 395(1) of the IT Act Lower/Nil withholding tax certificate obtained from Income tax Department. No tax shall be deducted on the dividend payable to resident individuals if – ▪ The total dividend to be received by them from the Company during financial year 2026-27 does not exceed Rs. 10,000/-. ▪ The Shareholder is exempted from TDS provisions through any circular or notification and provides an attested copy of the PAN along with the documentary evidence in relation to the same. ▪ The Shareholder provided Form 121 attached as ‘Annexure A’ subject to fulfillment of conditions as specified in the IT Act. For Resident Non-Individual Shareholders: No Tax shall be deducted on the dividend payable to the resident Non-Individual Shareholders if all the requisite documents as specified below is provided: Insurance Companies (Public/Other) Self-declaration that it has full beneficial interest with respect to shares owned, along with documentary evidence such as OR self-attested copy of PAN card and certificate of registration as attached as ‘Annexure B’ Mutual Funds TDS shall be deducted at applicable rates, if any of the above mentioned documents are not provided. Alternative Investment Fund Recognized Provident funds/ Approved Superannuation fund/Approved Gratuity Fund New Pension System Trust Other non-individual shareholders Corporation established by or under a Central Act, Self-attested copy of documentary evidence supporting the which is exempt from income-tax for the time being in exemption along with self-attested copy of PAN card. force or any other Non-Individual Shareholders Transferring credit to the beneficial owner - As per Rule 203, in the case where the dividend is received in the hands of one person but is assessable in the hands of other person, the tax may be deducted in the name of such other person if the first mentioned person provides a declaration as prescribed in this regard. The aforesaid declaration shall contain (i) name, address, PAN, and residential status of the person to whom credit is to be given; (ii) payment in relation to which credit is to be given; and (iii) the reason for giving credit to such person. We request you to provide any such details latest by Monday, September 14, 2026. Attached is the sample format as ‘Annexure C’ as per Rule 203. For Non-Resident Shareholders: Any non-resident shareholder [including Foreign 20% (plus applicable surcharge and cess) or DTAA rate, Institutional Investors (FII), Foreign Portfolio Investors whichever is lower on the amount of dividend payable. (FPI)]. Submitting Order under Section 395(1) of the IT Act. Lower/Nil withholding tax c [Showing first 8,000 characters — download PDF for full document]