Investor Presentation on unaudited Financial Results for the Quarter and half year ended 30th September''2026

Date: 6th November, 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 Subject: Investor/analyst presentation on Un-Audited financial results for the Quarter & half year ended on September 30, 2026. Dear Sir/Ma’am, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, enclosed herewith the investor/analyst presentation with respect to Un-Audited financial results for the quarter & half year ended on September 30, 2026. The above information is also available on the website of the Company www.interarchbuildings.com This is for your information and records. For INTERARCH BUILDING SOLUTIONS LIMITED (Formerly known as Interarch Building Products Limited) NIDHI KHANDELWAL COMPANY SECRETARY & COMPLIANCE OFFICER M.No.: A19279 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. Interarch Building Solutions Limited November 2026 Safe Harbour This presentation and the accompanying slides (the “Presentation”), which have been prepared by Interarch Building Solutions Limited (the “Company”), have been prepared solely for information purposes and do not constitute any offer, recommendation or invitation to purchase or subscribe for any securities, and shall not form the basis or be relied on in connection with any contract or binding commitment whatsoever. No offering of securities of the Company will be made except by means of a statutory offering document containing detailed information about the Company. 51 This Presentation has been prepared by the Company based on information and data which the Company considers reliable, but the Company makes no representation or warranty, express or implied, whatsoever, and no reliance shall be placed on, the truth, accuracy, completeness, fairness and reasonableness of the contents of this Presentation. This Presentation may not be all inclusive and may not contain all of the information that you may consider material. Any liability in respect of the contents of, or any omission from, this Presentation is expressly excluded. 209 This presentation contains certain forward looking statements concerning the Company’s future business prospects and business profitability, which are subject to a number of risks and uncertainties and the actual results could materially differ from those in such forward looking statements. The risks and uncertainties relating to these statements include, but are not limited to, risks and uncertainties regarding fluctuations in earnings, our ability to manage growth, competition (both domestic and international), economic growth in India and abroad, ability to attract and retain highly skilled professionals, time and cost over runs on contracts, our ability to manage our international operations, government policies and actions regulations, interest and other fiscal costs generally prevailing in the economy. The Company does not undertake to make any announcement in case any of these forward looking statements become materially incorrect in future or update any forward looking statements made from time to time by or on behalf of the Company. Contents 1 Performance Highlights – Q2 & H1FY27 51 2 Company Overview 210 3 Strengths & Capabilities 4 Way Forward Performance Highlights Q2 & H1FY27 MD’s Commentary Commentingontheperformance,ManagingDirector&CEOMr.ManishGargstated, “We delivered a steady performance in Q2FY27, in line with our expectations. Revenue from Operations grew 2.9% YoY to Rs. 505.4 crore, while EBITDA remained stable at Rs. 41.7 crore, with a margin of 8.3%. For H1FY27, revenue and EBITDA grew 10.7% YoY to Rs. 965.0 crore and Rs. 81.1 crore, respectively, reflecting the resilience of our business model and focus on operational excellence. While near-term challenges arising from external market conditions and the seasonal nature of the PEB industry may persist, customer enquiries across key end markets remain healthy. The long-term industry outlook remains encouraging, supported by private capex spending and 11 India's manufacturing-led growth, creating opportunities across manufacturing, warehousing, renewable energy, data centres andcommercialinfrastructure. Our order book stood at an all-time high of Rs. 2,011 crore as of October 31, 2026, providing strong 209 revenue visibility. We continue to focus on quality order inflows, prioritizing projects that align 210 with our execution capabilities andprofitability objectives. During the first half of FY27, we commissioned Phase 1 of our PEB facility at Kheda, Gujarat, and Phase 1 of our Heavy Steel Structures facility in Andhra Pradesh. These capacity additions will further enhance our manufacturing capabilities and strengthen our ability to undertake larger andmore complex projects. Going forward, growth will be driven by our core PEB business, Heavy Steel Structures and exports. We expect execution momentum to improve in the second half, supported by our strong order book, healthy enquiry pipeline and expanded capacities. Backed by our integrated business model and robust balance sheet, we remain focused on sustainable, profitable growth andlong-term value creation.” Q2 & H1FY27 Performance Highlights Revenue (INR Cr.)* Revenue Breakup –End User Industry (%) HSS PEB Building Industrial/Manufacturing Infrastructure Others 0% 0% 68 491.1 505.4 871.9 965.0 9% 9% 72.0 209.0 51 89% 71% 85% 73% 799.9 756.0 45 6% 20% 11% 17% 176 5% 1% 4% 1% Q2 FY26 Q2 FY27 H1 FY26 H1 FY27 Q2 FY26 Q2 FY27 H1 FY26 H1 FY27 EBITDA (INR Cr.) & EBITDA Margins (%) PAT (INR Cr.) & PAT Margins (%) Margin 8.5% 8.3% 8.4% 8.4% 6.6% 6.1% 7.0% 6.1% 81.1 60.7 58.9 73.3 41.7 41.7 32.3 30.7 Q2 FY26 Q2 FY27 H1 FY26 H1 FY27 Q2 FY26 Q2 FY27 H1 FY26 H1 FY27 *PEB –Pre-engineered buildings, HSS –Heavy Steel Structures Consistent Investment in Expanding Capabilities Pipeline Capacity Additions: Added Capacity post-IPO: +1,05,000MT +1,24,600MT in the next 3 years In MT 40,000 3,70,600 246 20,000 15,000 198 25,000 24,600 68 25,000 2,46,000 20,000 40,000 2,01,000 20,000 1,61,000 1,41,000 IPO AP Phase 1 Total PEB AP Phase 2 Total PEB Gujarat AP Phase Total Gujarat AP Phase ER Steel JV AP Phase Gujarat Total 11 Capacity + Kiccha Line Capacity Facility 1 1 (HSS) Capacity Facility 1 2 (HSS) 3 (HSS) Facility 2 Expected 45 Phase 1 Phase 2 Capacity Aug-24 FY25 FY26 H1 FY27 FY29 209 Revenue (INR Cr.) Gross Block (INR Cr.) Asset Turnover Ratio (times) Growth FY24 FY26 Gross Block –2.0x 1.5x 1,898 263 1.71 Revenue –1.5x Headroom for Growth 2.0x 1.46 1,293  HSS, PEB & ER Steel JV set to drive the next phase of growth, as new capacity are commissioned and ramping up FY24 FY26 FY24 FY26 FY24 FY26 AP-Andhra Pradesh , PEB –Pre-engineered buildings, HSS –Heavy Steel Structures Order Book Details Order Book Build Up (INR Cr.) New orders Received –End User Industry (%) Logistics 198 629 482 2,011 68 1,864 Construction & 28% Infrastructure 51 Q2FY27 Industrial 45 01st August New orders Orders 31st October 176 2026 received Executed 2026 New orders Received –Key Customers INR 2,011 Cr Hindustan GE Vernova Blue star Total Order Book as of 31st October 2026 Unilever India T&D India Healthy and Diversified orderbook Suroj Buildcon Indo Asia Copper Takenaka India Reflecting steady growth and strong customer trust across industries Value Space Logistics KEC International & Industrial Park Profit & Loss Statement – Q2 & H1 FY27 Particulars (INR Cr.) Q2 FY27 Q2 FY26 YoY H1 FY27 H1 FY26 YoY Revenuefrom Operations 505.4 491.1 2.9% 965.0 871.9 10.7% Cost of Goods Sold 306.6 299.9 585.2 5 [Showing first 8,000 characters — download PDF for full document]