Announcement under Regulation 30 of SEBI (LODR) Regulations

September 30, 2026 To, To, BSE Limited National Stock Exchange of India Limited Phiroze Jeejeebhoy Towers, Exchange Plaza, C-1 Block G, Dalal Street, Fort, Bandra - Kurla Complex, Bandra (East) Mumbai-400001 Mumbai - 400051 Scrip Code: 544532 Symbol: SOLARWORLD Subject: Disclosure under Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”), we hereby inform you that Solarworld Energy Solutions Limited (“Company”) has received a Show Cause Notice dated September 29, 2026 from the Office of the Deputy Commissioner in Form GST DRC-01 (Reference No. ZD090926472863L) under Section 73(1) of the Central Goods and Services Tax Act, 2017 (“CGST Act”) / Uttar Pradesh Goods and Services Tax Act, 2017 (“UPGST Act”), read with Section 20 of the Integrated Goods and Services Tax Act, 2017 (“IGST Act”), and the rules made thereunder. The aforesaid notice is at the show cause stage, and no order, demand or penalty has been confirmed against the Company. The Company was provided an opportunity to submit a written reply along with supporting documents substantiating compliance with the GST Returns. In response to the Show Cause Notice, the Company is examining the notice and will file a detailed reply with supporting documents within the prescribed time. Based on its preliminary assessment, the Company believes it has a good case on merits, and it does not expect any material impact on its financial position, operations or other activities. The details as required under Regulation 30 of the SEBI Listing Regulations read with SEBI Circular No. SEBI/HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 are enclosed herewith as “Annexure I”. Date and time of occurrence of event: September 29, 2026 at 7:40 p.m. (IST). Kindly take the above information on record. Thanking you, Yours faithfully, For Solarworld Energy Solutions Limited Varsha Bharti Company Secretary and Compliance Officer Membership No.: A37545 Encl. A/a Annexure I Details in terms of Regulation 30 read with Para A of Part A of Schedule III of SEBI Listing Regulations and SEBI Master Circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated January 30, 2026 Sr. No. Particulars Details 1. Name of the authority; Office of the Deputy Commissioner, State Tax, Sector- 3, Noida, Uttar Pradesh 2. Nature and details of the action(s) taken or The Company has received a Show Cause Notice dated order(s) passed; September 29, 2026 under Section 73 of the CGST Act, 2017, in connection to certain alleged discrepancies identified during scrutiny of the GST returns filed for FY 2022-23. This is a preliminary show cause notice and no order, demand or penalty has been confirmed. The Company was granted an opportunity to file a written reply substantiating full compliance with applicable GST laws and filing requirements. In response to the Show Cause Notice, the Company is examining the notice and will file a detailed reply with supporting documents within the prescribed time. Based on its preliminary assessment, the Company believes it has a good case on merits, and it does not expect any material impact on its financial position, operations or other activities. A personal hearing before the Proper Officer is scheduled for October 30, 2026, pursuant to which the Company will present its submissions and supporting documents. 3. Date of receipt of direction or order,  Date of Show Cause Notice: 29.09.2026 including any ad-interim or interim orders,  Last date for filing reply: 29.10.2026 or any other communication from the  Date of personal hearing: 30.10.2026 authority; 4. Details of the violation(s)/ contravention(s) The Company has been called upon to explain various committed or alleged to be committed; alleged discrepancies for FY 2022-23, including: i. Difference between tax payable reported in GSTR-9 and GSTR-9C; ii. Credit notes amounting to ₹2,83,13,705 reported in GSTR-9; iii. Unreconciled ITC reported in GSTR-9C; iv. Alleged excess ITC claimed as per GSTR-9; v. Differences between ITC claimed in GSTR-3B and ITC reflected in GSTR-2A/2B; vi. Issuance of e-way bills in respect of alleged non-supply transactions; vii. Outstanding trade payables of ₹60,15,87,600, with the department seeking an ageing-wise ledger for examination of potential ITC reversal against non-payment to vendors within 180 days; and viii. Alleged availment of blocked ITC of ₹15,44,358.33 under Section 17(5) of the CGST Act, 2017. 5. Impact on financial, operation or other The notice proposes a potential financial liability of activities of the listed entity, quantifiable in Rs. 5,39,39,622 comprising tax of Rs. 2,95,71,123, monetary terms to the extent possible. interest of Rs. 2,13,05,792 and penalty of Rs. 30,62,707. However, this is at the show cause stage only, is contested, and does not represent a confirmed liability. The Company intends to submit its reply along with relevant supporting documents and present its submissions before the Proper Officer at the scheduled personal hearing. The matter is not expected to have any material impact on the Company's financial, operational or other activities.