Key Action and Rationale

The company has sent physical letters to shareholders whose email addresses are not registered with the company, its Depository Participants, Depositories, or its Registrar and Transfer Agent (RTA), Adroit Corporate Services Private Limited. The purpose of the letter is to provide these shareholders with a web link, including the exact path, from where the Annual Report for the financial year 2025-26 can be accessed. This is a compliance measure mandated by SEBI Listing Regulations to ensure all shareholders have access to the annual report.

Contents of the Enclosed Letter

A copy of the letter sent to shareholders is enclosed with the filing. The letter, dated September 5, 2026, provides notice of the 57th Annual General Meeting (AGM) of the company.

AGM and Annual Report Details

  • The 57th AGM is scheduled to be held on Tuesday, September 29, 2026, at 4:30 P.M. (IST) through Video Conferencing (VC)/ Other Audio-Visual Means (OAVM).
  • The Notice of the AGM and the Annual Report for FY 2025-26 have been circulated electronically to shareholders with registered email addresses.
  • The web link for accessing the Annual Report is provided as: https://www.rirpowersemi.com/
  • The exact path to the document is: https://investors.rirpowersemi.com/financialresultandreportpdfs/AnOur4MOZvz4Dzx2lVUaNqtrk9mdutSTnDRTKXTQ/RIR-57TH-ANNUAL-REPORT.pdf
  • The Annual Report is also available on the websites of BSE (www.bseindia.com) and NSE (www.nseindia.com).

Key Dates

| Particular | Detail |

| Record Date for Final Dividend and Cut-off date for E-voting | Tuesday, 22nd September, 2026 |

| E-Voting Start Date & Time | Saturday, 26th September, 2026 at 9.00 a.m. (IST) |

| E-Voting End Date & Time | Monday, 28th September, 2026 at 5.00 p.m. (IST) |

Shareholder Request and Contact Information

The company requests shareholders to update and complete their KYC details with the RTA or Depository Participants, including name, postal address, email ID, telephone/mobile numbers, PAN, mandates, nomination, and bank details.

For any queries, shareholders are instructed to 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