Carborundum Universal Limited has published newspaper advertisements in 'Business Standard' (English) and 'Makkal Kural' (Tamil) on 5th May 2026, notifying shareholders of two important investor-related developments: the opening of a special window for physical share transfer and dematerialisation, and the launch of the second phase of the Investor Education and Protection Fund (IEPF) Authority's 100-day campaign.

Special Window for Transfer and Dematerialisation of Physical Shares

The Securities and Exchange Board of India (SEBI) had discontinued the transfer of shares in physical form from 1st April 2019. A prior special window was permitted from 7th July 2025 to 6th January 2026 for re-lodgement of physical share transfer requests that were submitted before 1st April 2019 but returned due to documentation deficiencies.

Pursuant to a SEBI circular dated 30th January 2026, another special window has now been permitted for a period of one year — from 5th February 2026 to 4th February 2027 — for re-lodgement of transfer and dematerialisation of physical shares. This facility is available to investors who had purchased, held, or acquired shares of Carborundum Universal Limited in physical form prior to 1st April 2019.

The eligibility criteria for shareholders wishing to avail this window are outlined below:

The following cases will not be considered under this window:

• Cases involving disputes between transferor and transferee
• Shares which have been transferred to the Investor Education and Protection Fund (IEPF)

Process and Requirements

Eligible shareholders may submit their transfer requests along with the requisite documents to the Company's Registrar and Transfer Agent (RTA), KFin Technologies Limited, at Selenium Building, Tower-B, Plot No. 31 & 32, Financial District, Nanakramguda, Serilingampally, Hyderabad, Telangana – 500032, or via email at einward.ris@kfinitech.com . Shareholders may also contact the Company directly at investorservices@cumi.murugappa.com .

All transfer requests duly rectified and re-lodged during the window period will be processed through the transfer-cum-demat mode, meaning shares will be issued only in dematerialised form after approval of the transfer. Transferred shares will be subject to a lock-in period of one year. Shareholders availing this facility must therefore hold a demat account and provide the Client Master List along with transfer documents, original share certificate(s), and other necessary documents as specified in the SEBI circular.

IEPF 100-Day 'Saksham Niveshak' Campaign — Second Phase

Pursuant to communication received from the IEPF Authority, Carborundum Universal Limited has also informed shareholders about the second phase of the 100-day 'Saksham Niveshak' campaign, running from 1st April 2026 to 9th July 2026. The campaign has been launched to facilitate direct payment of unclaimed or unpaid dividends, subject to submission of requisite documents and updation of KYC details, with the aim of preventing transfer of such amounts and shares to the IEPF Authority.

Key details of the campaign are summarised below:

The campaign encourages shareholders to update their KYC details, bank account particulars, and contact information. All shareholders whose dividends for financial years commencing from FY 2018-19 onwards remain unclaimed or unpaid are requested to immediately contact the Company or its RTA to complete the requisite formalities and enable direct release of dividends.

Contact Details for Shareholder Assistance

Shareholders seeking further assistance may reach out through the following channels:

• RTA: KFin Technologies Limited, Mr. S R Ramesh, Deputy Vice President, Selenium Building, Tower-B, Plot No. 31 & 32, Financial District, Nanakramguda, Serilingampally, Hyderabad, Telangana – 500032
• Email (RTA): einward.ris@kfinitech.com
• Company Email: investorservices@cumi.murugappa.com
• Company Website: https://www.cumi-murugappa.com/part-4-investor-services/

The notices were signed by Rekha Surendhiran, Company Secretary, Carborundum Universal Limited, and dated 5th May 2026 from Chennai.

Carborundum Universal Limited has announced the schedule for its analyst and investor call to discuss the audited financial results for the year ended 31 March 2026. The company has informed stock exchanges about this upcoming investor engagement as part of its regulatory disclosure obligations through an official filing dated 30 April 2026.

Meeting Details and Schedule

The investor call has been organized in collaboration with Equirus Securities Private Limited and is scheduled as a group meeting over call. The company has provided specific timing and access details for interested participants.

Access Information for Participants

The company has provided comprehensive dial-in details to ensure accessibility for participants from multiple countries and networks. Universal access numbers have been made available along with country-specific toll-free numbers.

Regulatory Compliance and Communication

This disclosure has been made pursuant to Regulation 30(2) of Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015. The announcement was communicated to both BSE Limited and National Stock Exchange of India Limited on 30 April 2026. The official communication was signed by Rekha Surendhiran, Company Secretary, and includes stock codes 513375 for BSE and CARBORUNIV for NSE.

The call will focus on discussing the company's audited financial results for the financial year ended 31 March 2026, providing stakeholders with insights into the company's annual performance and business developments.