Intimation for Publication of Post Advertisement of 43rd AGM of the company .

Date: 14/08/2026 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.: Submission of Newspaper Advertisements for attention of Equity Shareholders of the Company in respect of information regarding 43rd Annual General Meeting to be held on Thursday, 10th September, 2026 at 11:30 a.m. (IST) through Video Conferencing (VC) / Other Audio Visual Means (OAVM) Dear Sir/ Madam, Pursuant to Regulation 30 read with Schedule III Part A Para A and Regulation 47 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) regulations, 2015, we hereby enclose copies of newspaper advertisements published in the “Financial Express”, in English language and “Jansatta”, in Hindi language on August 14, 2026 regarding Notice of 43rd Annual General meeting scheduled to be held on Thursday, 10th September, 2026 at 11:30 a.m (IST) through VC/ 0AVM . The same is also available on the website of the Company https://www.interarchbuildings.com/ You are requested to kindly take above information on your records. 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.