Change in Auditors

July 1, 2026 National Stock Exchange of India Limited BSE Limited Exchange Plaza, 5th Floor Phiroze Jeejeebhoy Towers Plot No. C/1, G-Block Dalal Street Bandra-Kurla Complex Mumbai – 400001, Bandra (E) Maharashtra, India MUMBAI – 400051, India Scrip Code : MSUMI Scrip Code : 543498 Subject: Intimation for appointment of Cost Auditor and Internal Auditor of the Company Dear Sir/ Madam, Pursuant to Regulation 30 read with Schedule III (Part A) to the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, this is to inform that the Board of Directors of Motherson Sumi Wiring India Limited (“Company”) in its meeting held on July 1, 2026, has inter-alia, approved the appointment of following auditors of the Company: S. No Name of Auditors Particulars Term of appointment 1. M/s P.R. Mehra & Co. Internal Auditor For Financial Year 2026-27 2. M/s M.R. Vyas & Associates Cost Auditor For Financial Year 2026-27 The details of appointment, as required under the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 read with SEBI Master Circular HO/49/14/14(7)2025-CFD POD2/I/3762/2026 dated January 30, 2026 are enclosed as Annexure A and B. The Board Meeting of the Company commenced at 1330 Hours and concluded at 1410 Hours. 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 Annexure- A Appointment of M/s P. R Mehra & Co. as Internal Auditor of the Company for the Financial Year 2026-27 S. No. Particulars Details 1. Reason for change viz. appointment, Appointment as Internal Auditors resignation, removal, death or otherwise 2. Date of appointment / cessation July 1, 2026 (as applicable) Term of appointment For the financial year 2026-27 3. Brief Profile (in case of appointment) M/s P.R. Mehra & Co. (“PRM Firm”) has history of 100 years, established in 1921 by Mr. P.R. Mehra. PRM Firm is a multidisciplinary firm serving to Corporates, SMEs, HNIs and expats alike rendering services in India and internal audit services in five overseas locations. PRM Firm believes in usage of technology and contemporary methods and has in depth understanding of business environment due to vast experience. Over the period PRM Firm has handled high-profile assignments both in private and public sector. 4. Disclosure of Relationships between Not Applicable Directors (in case of appointment of a director) Annexure- B Appointment of M/s. M.R. Vyas and Associates, Cost Accountants as the Cost Auditor of the Company for the Financial Year 2026-27 S. No. Particulars Details 1 Reason for change viz. appointment, Appointment as Cost Auditors . resignation, removal, death or otherwise 2 Date of appointment / cessation July 1, 2026 . (as applicable) Term of appointment For the financial year 2026-27 3 Brief Profile (in case of appointment) M/s M.R. Vyas & Associates, a Partnership firm . of Cost Accountants (Firm Registration No.: 101394) having head office situated in Kanpur, India. The partners of the firm are professionals with vast experience of working in Industry and Practice. The firm provides the Guidance for Maintenance of Cost Accounting Records prescribed under the Companies (Cost Records and Audit) Rules 2014 and certification as regards maintenance of Cost Records by the Company. Apart from this the firm also has professional experience for working on projects with reputed PSU’s and private companies. 4 Disclosure of Relationships between Not Applicable . Directors (in case of appointment of a director)