Hindalco Industries has announced a significant change in the auditing arrangements for its wholly owned subsidiary Novelis Inc. The company disclosed that Novelis has selected Ernst & Young LLP (EY) as its independent registered public accounting firm for the upcoming fiscal period.

Auditor Appointment Details

The key parameters of this auditor change are outlined below:

Regulatory Compliance and Documentation

NovelisInc. has fulfilled its regulatory obligations by filing a Form 8-K with the U.S. Securities and Exchange Commission in connection with this auditor appointment. This filing ensures transparency and compliance with U.S. securities regulations, given Novelis Inc.'s status as a subsidiary with U.S. operations.

The appointment remains conditional upon the completion of required regulatory compliances and procedures, which is standard practice for such auditor transitions in the corporate sector.

Information Accessibility

The company has ensured public access to this information through multiple channels:

• SEC Form 8-K filing accessible through official channels
• Information available on Hindalco Industries' website at www.hindalco.com
• Details also published on Novelis Inc.'s website at www.novelis.com

This auditor appointment represents part of Novelis Inc.'s ongoing corporate governance practices and ensures continued professional auditing services for its financial reporting requirements.

Hindalco Industries has been assigned an ESG (Environment, Social and Governance) rating of 69 by NSE Sustainability Ratings and Analytics Ltd, a SEBI-registered ESG rating provider. The company announced this development through a regulatory filing on December 10, 2025.

ESG Rating Details

The rating assessment covers the company's performance across key ESG parameters as evaluated by the rating agency. The following table summarizes the key details:

Independent Assessment Process

Hindalco Industries clarified that the company did not engage NSE Sustainability for this rating exercise. The ESG report was independently prepared by the rating agency based on information available in the public domain. This approach ensures an objective evaluation of the company's ESG performance without any direct involvement or influence from the company itself.

The company received email intimation from NSE Sustainability on December 9, 2025, at 09:08 p.m., informing about the completion of this ESG report. This rating reflects the growing importance of ESG metrics in evaluating corporate performance and sustainability practices.

Regulatory Compliance

The announcement was made in compliance with Regulation 30 of the Securities Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015. The information has also been made available on the company's website at www.hindalco.com for stakeholder reference and transparency.