Williamson Magor & Co. Limited has notified the stock exchanges of an upcoming Board of Directors meeting, scheduled pursuant to Regulation 29 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The intimation, dated May 18, 2026, was addressed to BSE Ltd., the National Stock Exchange of India Ltd., and The Calcutta Stock Exchange Ltd.

Board Meeting Details

The following key details have been disclosed regarding the scheduled board meeting:

Trading Window Closure

In continuation of the company's earlier letter dated March 26, 2026, and in terms of SEBI (Prohibition of Insider Trading) Regulation, 2015, the company has informed that the Trading Window will continue to remain closed for Designated Persons, their immediate relatives, and all other concerned parties. The closure will remain in effect until the expiry of 48 hours after the declaration of the Audited Financial Results — both Standalone and Consolidated — are submitted to the stock exchanges.

Regulatory Compliance

The intimation was signed by Sk Javed Akhtar, Company Secretary of Williamson Magor & Co. Limited, and digitally authenticated on May 18, 2026. The communication was filed in accordance with applicable SEBI listing and insider trading regulations, underscoring the company's adherence to disclosure obligations ahead of its financial results announcement.

Williamson Magor & Co. Limited has submitted its quarterly compliance certificate under SEBI (Depositories and Participants) Regulations, 2018 for the quarter ended 31st March 2026. The filing demonstrates the company's adherence to regulatory requirements governing depositories and participant operations.

Compliance Certificate Details

The compliance certificate was prepared by Maheshwari Datamatics Private Limited (MDPL), which serves as the company's registrar and share transfer agent. The certificate covers the reporting period from 1st January 2026 to 31st March 2026 and was dated 2nd April 2026.

Regulatory Compliance Confirmation

MDPL confirmed in the certificate that it has sent the Demat Transfer Register for the specified period to the depository/depositories as well as to all stock exchanges where Williamson Magor's shares are listed. The registrar also confirmed compliance with security handling requirements, stating that all securities received from concerned Depository Participants (DPs) after dematerialisation have been destroyed, mutilated, or cancelled within the stipulated timeframe.

Stock Exchange Notification

The compliance certificate was formally communicated to multiple stock exchanges where the company's shares are traded. Company Secretary Sk Javed Akhtar signed the notification letter dated 14th April 2026, which was sent to:

• BSE Limited (Scrip Code: 519224)
• National Stock Exchange of India Limited (Scrip Code: WILLAMAGOR)
• The Calcutta Stock Exchange Association Limited (Scrip Code: 33013)

Company Information

Williamson Magor & Co. Limited operates with Corporate Identity Number L01132WB1949PLC017715 and maintains its registered office at Four Mangoes Lane, Surendra Mohan Ghosh Sarani, Kolkata - 700 001. The company's shares carry the ISIN code INE210A01017 for electronic trading and settlement purposes.

This quarterly compliance filing represents part of the company's ongoing regulatory obligations under SEBI's framework for depositories and participants, ensuring transparency and proper handling of dematerialised securities.