Chennai Petroleum Corporation Limited (CPCL) has submitted a formal response to the National Stock Exchange of India Limited (NSE) and BSE Ltd regarding a clarification sought on significant increase in trading volume of the company's shares.

The disclosure is made under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015.

The stock exchange inquiry was initiated through an email dated October 8, 2026, bearing Reference No.: L/SURV/ONL/PV/SG/2026-2027/424, which specifically addressed the significant volume increase observed across exchanges in the recent past.

CPCL confirms that the company has duly informed the stock exchanges, from time to time, about all events and information as required to be disclosed under Regulation 30 of SEBI (LODR) Regulations, 2015.

The company explicitly states that to the best of its knowledge, there is no unpublished price sensitive information or event that needs to be disclosed to the stock exchanges at this point in time.

CPCL attributes the recent movement in the volume of the company's shares to being market-driven rather than resulting from any undisclosed company-specific developments.

The letter was digitally signed by Lalit Kumar Mohanty, Company Secretary of Chennai Petroleum Corporation Limited, on October 8, 2026 at 14:38:48 IST from the company's registered office at Phiroze Jeejeeboy Towers, Plot No. C/1, G-Block, 25th Floor, Dalal Street, Bandra Kurla Complex, Mumbai — 400 001.