Intimation under Regulation 30 of the SEBI(LODR) Regulation,2015

Date: 27/08/2026 To, To, National Stock Exchange of India Ltd., BSE Limited Exchange Plaza, C-1, Block G, Phiroze Jeejeebhoy Towers Bandra Kurla Complex, Bandra (E), Dalal Street Mumbai – 400 051 Mumbai- 400001 NSE Scrip Symbol: INTERARCH BSE Scrip Code 544232 Sub: Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“SEBI Listing Regulations”) Dear Sir/ Madam, In compliance with Regulation 30 of the Listing Regulations read with SEBI Circular no. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated 30th January 2026, we are enclosing a disclosure in Annexure-I to this letter. This is for your information and records please. Thanking You, For INTERARCH BUILDING SOLUTIONS LIMITED (formerly Interarch Building Products Limited) ARVIND NANDA MANAGING DIRECTOR DIN: 00149426 INTERARCH BUILDING SOLUTIONS LIMITED (Formerly known as Interarch Building Products Limited) Head Office : B-30, Sector 57, Noida - 201301, India. Tel.: +91 120 4170200, CIN: L45201DL1983PLC017029 Registered Office: Farm No-8, Khasra No. 56/23/2, Dera Mandi Road, Mandi Village, Tehsil Mehrauli, New Delhi - 110047, India. Annexure – I Disclosure of Information pursuant to Regulation 30 of the SEBI Listing Regulations read with SEBI circular No. HO/49/14/14(7)2025-CFD-POD2/I/3762/2026 dated 30th January 2026: a) Name of the Authority; Vikas Parashar Excise and Taxation Officer Faridabad ( North ) Ward 4, Faridabad, Haryana b) nature and details of the action(s) taken, Show Cause Notice / DRC -01 U/s 74 initiated or order(s) passed c) date of receipt of direction or order, including 26.08.2026 ( Online on GST Portal ) any ad-interim or interim orders, or any other communication from the authority; d) details of the violation(s)/contravention(s) SCN Issued Towards Diff of Input Tax Credit committed or alleged to be committed; Availed and Utilized between GSTR 3B and GSTR 2 A of Rs 9,88,926.00 hence , SCN issued and Interest Rs. 11,42,208.00 Charged The company will file a Proper Reply in due course against this SCN e) impact on financial, operation or other activities of the listed entity, quantifiable in Tax : Rs. 9,88,926/- monetary terms to the extent possible. Interest : Rs. 11,42,208/- Total Demand : Rs. 21 ,31,134 /- INTERARCH BUILDING SOLUTIONS LIMITED (Formerly known as Interarch Building Products Limited) Head Office : B-30, Sector 57, Noida - 201301, India. Tel.: +91 120 4170200, CIN: L45201DL1983PLC017029 Registered Office: Farm No-8, Khasra No. 56/23/2, Dera Mandi Road, Mandi Village, Tehsil Mehrauli, New Delhi - 110047, India.