General Updates

Ref. RIR/SEC/13932/2026 8th September, 2026 Bombay Stock Exchange Limited The Manager – Listing Department Corporate Relationship Department, National Stock Exchange of India Ltd., 1st Floor, Rotunda Building, Exchange Plaza, C-1, G-Block, P. J. Towers, Dalal Street, Bandra Kurla Complex, Bandra (East), Mumbai-400001 Mumbai - 400051 BSE SCRIP Code : 517035 NSE Symbol : RIR Subject .: Intimation regarding sending physical copy of letters to the shareholders pursuant to Regulation 36(1)(b) of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir / Madam, Pursuant to Regulation 36(1)(b) of the SEBI (Listing Obligations & Disclosure Requirements) Regulations, 2015, the Company has sent letters to those shareholders whose e-mail addresses are not registered with Company/Depository Participants/Depositories/Adroit Corporate Services Private Limited (Registrar and Transfer Agent) providing the web link including the exact path from where the Annual Report 2025-26 can be accessed. A copy of the letter sent to such shareholders is enclosed herewith for reference. The above information is being made available on the website of the Company at www.rirpowersemi.com We request you to take the aforesaid information on record. Thanking you. Yours faithfully, For RIR POWER ELECTRONICS LIMITED BHAVIN P RAMBHIA COMPANY SECRETARY Encls : a/a 5th September, 2026 Dear Shareholder, Sub.: Notice of 57th Annual General Meeting (AGM) and Annual Report for the Financial Year 2025- 26 We are pleased to inform you that the 57th Annual General Meeting of the members of RIR POWER ELECTRONICS LIMITED (“the Company”) will be held on Tuesday, September 29, 2026 at 4:30 P.M. (IST) through Video Conferencing (“VC”)/ Other Audio-Visual Means (“OAVM”). In accordance with the applicable circulars issued by the SEBI and the Ministry of Corporate Affairs, the Notice of the AGM and the Annual Report for the Financial Year 2025-26 are being circulated electronically by email to all the shareholders whose email addresses are registered with the Company/Registrar and Transfer Agent (“RTA”)/Depository Participant(s). As per Regulation 36(1)(b) of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations, 2015”), listed entities are required to send a letter providing the web link, including the exact path, where complete details of the Annual Report are available, to those shareholder(s) who have not registered their email address(es) either with the Company or with any depository, or, Registrar & Share Transfer Agent (RTA) of the Company. Accordingly, the web-link, including the exact path where complete details of the Annual Report for the Financial Year 2025-26 are available, is as follows: • Company Website: https://www.rirpowersemi.com/ • Path of Notice of 57th AGM and Annual Report for F. Y. 2025-26: https://investors.rirpowersemi.com/financial_result_and_report_pdfs/AnOur4MOZvz4Dzx2lVUaNqtrk9m dutSTnDRTKXTQ/RIR-57TH-ANNUAL-REPORT.pdf The Annual Report of the Company is also available on the websites of Bombay Stock Exchange (BSE) at www.bseindia.com & National Stock Exchange of India Limited (‘NSE’) at www.nseindia.com. Key details of the AGM are as under: Particulars Details Record Date for Final Dividend and Cut-off date of T u e s d a y , 22nd September, 2026 E-voting E-Voting Start Date with Time Saturday, 26th September, 2026 at 9.00 a.m. (IST) E-Voting End Date with Time Monday, 28th September, 2026 at 5.00 p.m. (IST) We request you to update and complete your KYC details with Registrar and Transfer Agents / Depository Participants, including name, postal address, email ID, telephone/mobile numbers, PAN, mandates, nomination and bank details. In case of any queries / clarifications, you may contact the RTA, Adroit Corporate Services Private Limited, Unit : RIR Power Electronics Limited, 17-20, Jaferbhoy Industrial Estate, 1st Floor, Makwana Road, Marol Naka, Andheri (East), Mumbai – 400059, Tel. : 022-42270400, E-mail: info@adroitcorporate.com Thanking You. Yours faithfully, For RIR Power Electronics Limited Sd/- Bhavin P Rambhia Company Secretary M. No. A25849 Toopen,InsertFinger&gentlyslideithorizontally INLAND LETTER CARD AHMEDABAD SS UU NN II LL KK UU MM AA RR MM AA NN II FF LL AATT 331133 113333 HHOORRAALLAANNZZ EEAASSTT AARREEAA PP OO BBOOXX 1177113333 DDUUBBAAII PINCODE -110000000000 SR.NO -1/FOLIO NO -IINN3300002233991166001144990044 Donottearofffromhere Baojanaovaalao ka naama AaOr pataa NAMEANDADDRESS If undelivered please return to: Adroit Corporate Services Private Limited Unit: RIRPower Electronics Limited 18-20, Jaferbhoy Industrial Estate, Makwana Road, Marol Naka, Andheri (East), Mumbai -400059 Tel: +91 22 42270400, Email: info@adroitcorporate.com Donottearofffromhere