General Updates

Date: 04" 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 Sub: Outcome of Board Meeting held on Wednesday, 04th November, 2026 Dear Sir/Madam, Pursuant to Regulations 30 and 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”), we wish to inform you that the Board of Directors of Interarch Building Solutions Limited (“the Company”), at its meeting held today, i.e., Wednesday, 04th November, 2026, has, inter alia, considered and approved the following matters: 1. Standalone Unaudited Financial Results for the Quarter Ended September 30, 2026 The Board of Directors considered and approved the Standalone Unaudited Financial Results of the Company for the quarter ended September 30, 2026, as reviewed and recommended by the Audit Committee. The Standalone Unaudited Financial Results, along with the Limited Review Report issued by the Statutory Auditors thereon, are enclosed herewith as Annexure-A. 2. Resignation of Ms. Sonali Bhagwati Dalal from the Position of Chairperson of the Board, while Continuing as a Non-Executive Independent Director of the Company The Board took note of the resignation tendered by Ms. Sonali Bhagwati Dalal from the position of Chairperson of the Board of Directors of the Company, with effect from the close of business hours on 04th November, 2026. Ms. Sonali Bhagwati Dalal shall continue to serve as a Non-Executive Independent Director of the Company and shall discharge her duties, responsibilities and obligations in such capacity in accordance with the applicable provisions of the Companies Act, 2013, the Listing Regulations and other applicable laws. 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. info@interarchbuildings.com www.interarchbuildings.com 3. Change in Designation and Elevation of Mr. Arvind Nanda from Managing Director to Whole- Time Director, designated as “ Executive Chairperson” of the Company Based on the recommendation of the Nomination and Remuneration Committee at its meeting held on 04th November, 2026, the Board of Directors of the Company considered and approved the change in designation and elevation of Mr. Arvind Nanda from Managing Director to Whole-Time Director, designated as “ Executive Chairperson” of the Company, with effect from 05th November, 2026, for a consecutive term of five (5) years, subject to the approval of the shareholders of the Company and such other approvals as may be necessary. 4. Change in Designation and Elevation of Mr. Manish Kumar Garg from Executive Director & CEO to Managing Director & CEO of the Company, along with Revised Remuneration Based on the recommendation of the Nomination and Remuneration Committee at its meeting held on 04th November, 2026, the Board of Directors of the Company considered and approved the change in designation and elevation of Mr. Manish Kumar Garg from Executive Director & CEO to Managing Director & CEO of the Company, with effect from 05th November, 2026, for a consecutive term of five (5) years, along with a revision in his remuneration, subject to the approval of the shareholders of the Company and such other approvals as may be necessary. You are requested to take the above information on record. The aforesaid outcome of the Board Meeting is also being made available on the Company's website at www.interarchbuildings.com. The meeting of the Board of Directors commenced at 03:30 P.M. (IST) and concluded at 04:23 P.M. (IST). Kindly take the above information on record and acknowledge receipt of the same. For INTERARCH BUILDING SOLUTIONS LIMITED (Formerly known as Interarch Building Products Limited) Niiddhhii Digiatalllyy signed Khandel «handelwal Date: 20261104 wal 16:4847 +0530° 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. info@interarchbuildings.com wwuw.interarchbuildings.com ~ §§ T 67 Institutional Area O {Lrf Szclor 44, Gurugr1a22n0-03 Haryana, india Tel 491124 581 6000 Independent Auditor’s Review Report on the Quarterly and Year to Date Unaudited Financial Results of the Company Pursuant to the Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended Review Report to The Board of Directors Interarch Building Solutions Limited (formerly known as Interarch Building Products Limited) We have reviewed the accompanying statement of unaudited financial results of Interarch Building Solutions Limited (the “Company”) (formerly known as Interarch Building Products Limited) for the quarter ended September 30, 2026 and year to date April 01, 2026 to September 30, 2026 (the “Statement™) attached herewith, being submitted by the Company pursuant to the requirements of Regulation 33 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, as amended (the “Listing Regulations™). The Company’s Management is responsible for the preparation of the Statement in accordance with the recognition and measurement principles laid down in Indian Accounting Standard 34, (Ind AS 34) “Interim Financial Reporting” prescribed under Section 133 of the Companies Act, 2013 as amended, read with relevant rules issued thereunder and other accounting principles generally accepted in India and in compliance with Regulation 33 of the Listing Regulations. The Statement has been approved by the Company’s Board of Directors. Our responsibility is to express a conclusion on the Statement based on our review. We conducted our review of the Statement in accordance with the Standard on Review Engagements (SRE) 2410. “Review of Interim Financial [nformation Performed by the Independent Auditor of the Entity” issued by the Institute of Chartered Accountants of India. This standard requires that we plan and perform the review to obtain moderate assurance as to whether the Statement is free of material misstatement. A review of interim financial information consists of making inquiries, primarily of persons responsible for financial and accounting matters, and applying analytical and other review procedures. A review is substantially less in scope than an audit conducted in accordance with Standards on Auditing and consequently does not enable us to obtain assurance that we would become aware of all significant matters that might be identified in an audit. Accordingly, we do not express an audit opinion. Based on our review conducted as above, nothing has come to our attention that causes us to believe that the accompanying Statement, prepared in accordance with the recognition and measurement principles laid down in the aforesaid indian Accounting Standards (‘Ind AS®) specified under Section 133 of the Companies Act, 2013 as amended, read with relevant rules issued thereunder and other accounting principles generally accepted in India, has not disclosed the information required to be disclosed in terms of the Listing Regulations, including the manner in which it is to be disclosed, or that it contains any material misstatement. Emphasis of Matter: Income tax search and survey We draw attention to Note 8 of the accompanying unaudited financial results, which describes the matter relating to a search and survey conducted by the Income Tax [Showing first 8,000 characters — download PDF for full document]