Change in Auditors

STERLING & WILSON~ July 01, 2026 BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers Exchange Plaza Dalal Street Bandra Kurla Complex Mumbai – 400 001 Bandra (East), Mumbai – 400 051 Scrip Code: 542760 Symbol: SWSOLAR Sub.: Resignation and Appointment of Auditor of Material Subsidiary Ref: Regulation 30 read with Schedule III of SEBI (Listing Obligations and Disclosure Requirements), Regulations, 2015 (“Listing Regulations”) Pursuant to Regulation 30 read with Schedule III of Listing Regulations and the SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, we hereby inform you that Moore Australia Audit (WA) has, vide its letter dated July 01, 2026, tendered its resignation as the Auditor of Sterling and Wilson Solar Australia Pty Ltd, a material subsidiary of the Company, with effect from July 01, 2026. In this regard, the details required under Regulation 30 read with Part A of Schedule III of Listing Regulations, read with SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026, are enclosed as Annexure A. Sterling and Wilson Solar Australia Pty Ltd have appointed William Buck Audit (WA) Pty Ltd as Auditor w.e.f July 01, 2026. Accordingly, details required under Regulation 30 read with Part A of Schedule III of Listing Regulations, read with SEBI Master Circular No. HO/49/14/14(7)2025- CFD-POD2/I/3762/2026 dated January 30, 2026, are enclosed as Annexure A The resignation letter of Moore Australia Audit (WA), together with the details pertaining to the resignation of the Auditor of the material subsidiary, as required under SEBI Circular No. CIR/CFD/CMD1/114/2019 dated October 18, 2019, is enclosed as Annexure B. Please take the same on records. Thanking you. Yours faithfully, For Sterling and Wilson Renewable Energy Limited Jagannadha Rao Ch. V. Company Secretary and Compliance Officer Encl: as above Sterling and Wilson Renewable Energy Limited Regd. Office: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur (W), Mumbai - 400043 Phone: (91-22) 25485300 | Fax: (91-22) 25485331 | CIN: L74999MH2017PLC292281 Email: info@sterlingwilson.com | Website: www.sterlingandwilsonre.com STERLING & WILSON~ ANNEXURE – A DETAILS REQUIRED UNDER REGULATION 30 READ WITH SCHEDULE III PART A OF SECURITIES AND EXCHANGE BOARD OF INDIA (LISTING OBLIGATIONS AND DISCLOSURE REQUIREMENTS) REGULATIONS, 2015 AND SEBI CIRCULAR NO. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 DATED JANUARY 30, 2026. 1. Resignation of Moore Australia Audit (WA), as the Auditors of Sterling and Wilson Solar Australia Pty Ltd, a Material Subsidiary of the Company. Sr No Particulars Details 1 Name of the Company Sterling and Wilson Solar Australia Pty Ltd, a material subsidiary of the Company. 2 Reason for change viz. appointment, re- Resignation of Moore Australia appointment, removal, death or otherwise Audit (WA) as auditor of material subsidiary. 3 Date of appointment/re- July 01, 2026. appointment/cessation (as applicable) & term of appointment/re-appointment 4 Brief Profile (in case of appointment) Not Applicable. 5 Disclosure of relationship between Not Applicable. Directors (in case of appointment of a Director) 2. Appointment William Buck Audit (WA) Pty Ltd as the Auditors of Sterling and Wilson Solar Australia Pty Ltd, Material Subsidiary of the Company. Sr No Particulars Details 1 Name of the Company Sterling and Wilson Solar Australia Pty Ltd, a material subsidiary of the Company 2 Reason for change viz. appointment, re- Appointment of William Buck appointment, removal, death or otherwise Audit (WA) Pty Ltd as auditor of material subsidiary. 3 Date of appointment/re-appointment/cessation July 01, 2026 (as applicable) & term of appointment/re- appointment 4 Brief Profile (in case of appointment) William Buck Audit (WA) Pty Ltd, a well-established and reputed firm having presence in multiple locations across Australia & New Zealand. They offer services in audit & Sterling and Wilson Renewable Energy Limited Regd. Office: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur (W), Mumbai - 400043 Phone: (91-22) 25485300 | Fax: (91-22) 25485331 | CIN: L74999MH2017PLC292281 Email: info@sterlingwilson.com | Website: www.sterlingandwilsonre.com STERLING & WILSON~ assurance, business advisory, restructuring & insolvency, tax services etc. The firm has access to more than 480 offices in over 70 countries. 5 Disclosure of relationship between Directors Not Applicable (in case of appointment of a Director) Sterling and Wilson Renewable Energy Limited Regd. Office: Universal Majestic, 9th Floor, P. L. Lokhande Marg, Chembur (W), Mumbai - 400043 Phone: (91-22) 25485300 | Fax: (91-22) 25485331 | CIN: L74999MH2017PLC292281 Email: info@sterlingwilson.com | Website: www.sterlingandwilsonre.com Annexure B MOORE Moore Australia Audit (WA) Level 15, Exchange Tower, 2 The Esplanade, Perth, WA 6000 PO Box 5785, St Georges Terrace, WA 6831 T +61 8 9225 5355 1/07/2026 www.moore-australia.com.au The Directors Sterling and Wilson Solar Australia Pty Ltd Suite 53, Level 2, 11-15 Labouchere Road SOUTH PERTH WA 6151 Dear Directors Resignation as Auditor We hereby give formal notice that we have resigned as auditor of the following entity with effect from 1st July 2026: • Sterling and Wilson Solar Australia Pty Ltd Despite our discussions, we have been unable to reach an agreement on an appropriate audit fee that reflects the scope, complexity and professional requirements of the engagement. As a result, we are not in a position to continue as the auditor. This decision has been made having regard to our professional obligations and quality requirements, including ensuring that adequate resources can be applied to the engagement. We will cooperate with your incoming auditor to facilitate an orderly transition, including providing information as permitted under applicable professional and legal requirements. We thank the Board and management for the opportunity to act as the auditor. Yours faithfully Shaun Williams Partner – Audit & Assurance Moore Australia Audit (WA) Moore Australia Audit (WA) – ABN 16 874 357 907. An independent member of Moore Global Network Limited - members in principal cities throughout the world. Liability limited by a scheme approved under Professional Standards Legislation. MOOIRE Annexure A 1. Name of the material subsidiary: Sterling and Wilson Solar Australia Pty Ltd 2. Details of the statutory auditor: a. Name: Moore Australia Audit (WA) b. Address: Level 15, Exchange Tower, 2 The Esplanade, Perth WA 6000 c. Phone number: +61 8 9225 5355 d. Email: shaun.williams@moore-australia.com.au 3. Details of association with the material subsidiary: a. Date of appointment: 22/10/2019 b. Scheduled expiry date: N/A c. Latest audit report submitted and date: 13/04/2026 4. Detailed reasons for resignation: The auditor has resigned due to inability to reach agreement with management on an appropriate audit fee that reflects the scope, complexity, and professional requirements of the engagement. The decision was made having regard to professional obligations and quality requirements, including ensuring that adequate resources can be applied to the engagement. 5. Efforts made by the auditor prior to resignation: The auditor engaged in discussions with management regarding the audit fee. However, no agreement could be reached. No further concerns have been noted. 6. Information not provided to the auditor: N/A as the resignation is not due to non-receipt of information or scope limitation. 7. Other relevant facts: The auditor will cooperate with the incoming auditor to facilitate an orderly transition, subject to applicable professional and legal requirements. Declaration 1. I confirm that the information provided in this letter is correct and complete. 2. I confirm that there is no other material reason for our resignation other than those stated above. Shaun Williams Partner – Audit & Assurance M [Showing first 8,000 characters — download PDF for full document]