Notice of 43rd Annual General Meeting

Date: 13/08/2026 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: Notice of the 43rd Annual General Meeting (“AGM”) and Integrated Annual Report of FY 2025-26 of INTERARCH BUILDING SOLUTIONS LIMITED (“the Company”). Ref: Regulation 30 & 34 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Please refer to our letter dated August 06, 2026, wherein it was intimated that the 43rd Annual General Meeting of the Company is scheduled to be held on Thursday, September 10, 2026 at 11:30 a.m. (IST) through Video Conferencing ('VC') facility / Other Audio-Visual Means ('OAVM') to transact the businesses as set out in the Notice of 43rd AGM. In this regard, pursuant to Regulation 30 and 34 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, please find enclosed: 1. Integrated Annual Report for FY2025-26; and 2. Notice convening the 43rd Annual General Meeting. The aforesaid documents are available on the website of the Company and are being dispatched today i.e., August 13, 2026 to all eligible shareholders in electronic mode, whose email IDs are registered with the Company/ RTA/ Depositories. In addition, pursuant to Regulation 36(1)(b) of the SEBI Listing Regulations, a letter is also being sent to the shareholders whose email addresses are not registered, providing the web- link where the Annual Report is uploaded on website. The Company is providing remote e-voting and e-voting facility at 43rd AGM to the members through electronic voting platform of CDSL. Members holding shares either in physical form or dematerialized form as on cut-off date i.e. Thursday, September 03, 2026 may cast their votes electronically on the resolutions included in the Notice of 43rd AGM. 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. The remote e-voting shall commence from 09:00 a.m. (IST) on Monday, September 07, 2026 and shall end at 05:00 p.m. (IST) on Wednesday, September 09, 2026. The information are also available on the website of the Company at https://www.interarchbuildings.com/. You are requested to kindly take the same on your record. For INTERARCH BUILDING SOLUTIONS LIMITED (formerly Interarch Building Products Limited) ARVIND NANDA MANAGING DIRECTOR DIN: 00149426 Encl: as above 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. For more investor-related information, please visit https://www.interarchbuildings.com/investors segaP ssorcA Corporate Overview Statutory Reports 02-79 80-229 Key Performance Highlights for 02 Management Discussion and Analysis 80 FY 2025-26 Directors’ Report Company Overview 04 Corporate Governance Report 136 Our Journey 06 Business Responsibility and 185 Sustainability Report Our Offerings 08 Letter from the Managing Director 12 Financial Statements Letter from the Whole-Time Director 16 230-321 Letter from the Executive Director and 20 Chief Executive Officer Independent Auditor’s Report 230 Robust Partnerships 22 Balance Sheet 242 Strengths 24 Statement of Profit and Loss 243 Statement of Cash Flows 244 Strategies 44 Statement of Changes in Equity 246 ESG Commitment 46 Notes Forming Part of the Financial 248 Statements Stakeholder Engagement 60 Marquee Projects 62 Notice of AGM Awards and Accolades 78 322-347 Corporate Information 79 Market Capitalisation ` 2,792.2 Crore (as of March 31, 2026) CIN L45201DL1983PLC017029 BSE Code 544232 NSE Symbol INTERARCH Dividend Declared ` 12.5 per Share AGM Date September 10, 2026 AGM Mode Video Conferencing The circular composition brings together Interarch’s diverse capabilities in a seamless visual narrative that reflects integration, scale, and engineering precision. Featuring landmark structures across sectors, the design captures the Company’s journey of continuous evolution, expanding expertise, and strategic growth over the years. Each element within the composition represents a strong foundation built on innovation, technical excellence, and a commitment to delivering impactful infrastructure solutions. The interconnected form reinforces Interarch’s ability to unify design, engineering, and execution at Cover scale, while also symbolising forward momentum and long-term vision. Together, the composition Note presents a powerful representation of Interarch’s legacy, capabilities, and its role in shaping the future of infrastructure and industrial development. Disclaimer: This document contains statements about expected future events and financials of Interarch Building Solutions Limited (‘the Company’), which are ‘forward-looking'. By their nature, forward-looking statements require the Company to make assumptions and are subject to inherent risks and uncertainties. There is a significant risk that the assumptions, predictions, and other forward-looking statements may not prove to be accurate. Readers are cautioned not to place undue reliance on forward-looking statements as several factors could cause assumptions, actual future results and events to differ materially from those expressed in the forward-looking statements. Accordingly, this document is subject to the disclaimer and qualified in its entirety by the assumptions, qualifications and risk factors referred to in the Management Discussion and Analysis section of this Annual Report. BUILDING LEGACY OF EXCELLENCE Somewhere in India today, a car is taking shape, a microchip is being printed, a battery is being assembled, almost all of it inside a building that had to be engineered and built first. For more than four decades, Interarch Building Solutions has built those places, growing alongside India's industrial and economic transformation. As the nation widened its manufacturing ambitions, modernised its infrastructure, and strengthened its global presence, we evolved with it. When we say Building India, we mean more than the structures we build: we mean the value, capability, and confidence we help build for industries across the country. What sets our work apart is the way we adapt, always with intent. As our customers' expectations and the complexity of their projects have grown, so have we, moving past routine execution towards smarter, more integrated solutions drawn from deep engineering and steady innovation. Scale alone has never been the measure. We build for strength, for efficiency, and for the years ahead. FY 2025-26 carried that direction forward. Sustained momentum through the year let us invest more deeply in our manufacturing capabilities, in advanced technology, and in the specialised solutions that increasingly sophisticated projects demand. Widening partnerships and a broader market outlook are opening new opportunities to strengthen our position in high-value segments. Our way of working stays grounded in discipline and the long view. A strong financial foundation and a commitment to reinvesting in future readiness let us choose capability over short-term gains, year after year. Every project we take on reflects a deeper belief: that infrastructure is far more than steel and concrete. It is an enabler of progress, resilience, and national growth. In that spirit, we remain committed to building the next stage of India's development. 2 Interarch Building Solutions Limited CO SR FS Key Performance Highlights for FY 2025-26 Built fo [Showing first 8,000 characters — download PDF for full document]