Disclosure on ESG Rating

September 3, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, 5th Floor Phiroze Jeejeebhoy Towers, Plot No.C/1, G-Block Dalal Street Mumbai – 400001, Bandra-Kurla Complex Maharashtra, India Bandra (E) MUMBAI – 400051, India Scrip Code : MSUMI Scrip Code : 543498 Subject: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – ESG Rating Dear Sir / Madam, Pursuant to Regulation 30 of SEBI Listing Regulations, we wish to inform you that as per the information received by the Company on September 3, 2026, NSE Sustainability Ratings & Analytics Limited (“NSE Sustainability”), has assigned an ESG Rating of “72”. This rating reflects the Company’s performance on Environmental, Social and Governance parameters as assessed by the rating agency. The link for the rating is published by NSE Sustainability at: NSE Sustainability Ratings & Analytics at https://www.nse-esgrating.com/ Please note that the Company has not engaged NSE Sustainability for ESG Rating. NSE Sustainability has independently prepared the report based on data available in public domain. The above is for your information and records. Thanking You, Yours truly For Motherson Sumi Wiring India Limited Pooja Mehra Company Secretary Regd. Office: Motherson Sumi Wiring India Limited Unit – 705, C Wing, ONE BKC, G Block Bandra Kurla Complex, Bandra East Mumbai – 400051, Maharashtra (India) Tel: 022-61354800, Fax: 022- 61354801 CIN No.: L29306MH2020PLC341326 E-mail: investorrelations@mswil. motherson.com Website:www.mswil.motherson.com