Submission of annual report 2025 -26 along with AGM notice (47th AGM to be held on 16.09.2026 - WED) PURSUANT TO REG -34 (1) OF SEBI (LODR) Regulation 2015.

TAMILNADU STEEL TUBES LIMITED MFRS. & EXPORTERS OF : MS & GI, SQUARE & RECTANGLE STEEL PIPES REGD. OFF : lst Floor, No.22, Wheat Croft Road, Nungambakkam, Chennai - 600 034. PHONE : 044 2855 5653, Web : wwwtntpipes.com CIN : L27lt0TNl979PLC007887 E-MAIL: purchase@tntpipes.com / sales@htpipes.com / contact@tntpipes.com / tnt.share@yahoo.in TNT12026-271 25.08.2026 BSE Ltd. Dept. of Corporate Services PJ Towers, Floor 25 Dalal Street, MUMBAI - 400 001 Dear Sirs, Sub: TAMILNADU STEEL TUBES LTD.- Scrip Code 513540 Submission of AGM Notice - Annual Report 2025-26 - 47'n AGM (16.09.2026) ***** Pursuant to Regulation 34 SEBI (LODR) Regulations 2015, we submit the Annual Report 2025-26 for the Financial Year 2025-26 along with AGM Notice. The Annual Report 2025-26 is being despatched/sent to all the Shareholders by permitted mode(s) e-mails and is also on the company's website. We request you to kindly take the same on record. Thanking you, Yours faithfully, M.No. ACS 34656 Enc[: above WORKS : PLOT B-10, INDUSTRIAL COMPLEX, MARAIMALAI NAGAR, KANCHEEPLRAM DISTRICT, PIN - 603 209. Corporate Information Mr.Bivashwa Das Chief Financial Officer Managing Director Mr. Shivbandu Gupta Mr. Krishnan Kamal Shukla Statutory Auditors: Wholetime Director M/s. DPV & Associates, Chartered Accountants Mr. Ram Asish Singh ‘Sri Ranga’ Wholetime Director No. 151, First Floor, Mambalam High Road, T.Nagar Mr. Ashok Kumar Shukla Chennai – 600 017 Wholetime Director CostAuditor: M/s. Latha Venkatesh & Associates Mr.Rajesh Sai Iyer Secretarial Auditor Independent Director Mr.V.S. Sowrirajan Mrs. Divya Abhishek Practicing Company Secretary Independent Director Internal Auditor: Mrs. Priya Krishna Ms. N.Neerja, FCA Independent Director Inventory Audit: Ms. M. Indumathi Ms. Selvi, CWA Independent Director GST Audit: Mr.TMN Kesavan, CA Board Committees# Legal Advisor Mr.P.R. Shankar, Advocate Audit Committee: Supreme Court of India, New Delhi Mrs. Divya Abhishek Corporate Identification Number (CIN) Mrs. Priya Krishna L27110TN1979PLC007887 Ms. M. Indumathi LEI Code: 98450054B687EES96524 Mr. Ashok Kumar Shukla GST Regn. No. 33AAACT2381C1ZU Website Nomination & Remuneration Committee: www.tntpipes.com Mrs. Priya Kirshna Registrar & Share Transfer Agent: Mrs. Divya Abhishek M/s.Cameo Corporate Services Limited Mr. Rajesh Sai Iyer Subramanian Building No.1, Club House Road, Chennai-600002 Ph: +91444002 0723, 4002 0700 CSR, Goverance Committee: Mr. Rajesh Sai Iyer Fax: +91 44 4002 0129 Mr. Krishnan Kamal Shukla E-mail: murali@cameoindia.com Mr. Ram Asish Singh investor@cameoindia.com Mr. Bivashwa Das Risk Management,Reputation,Legal,Commodity Committee:Registered Office: Mr.Rajesh Sai Iyer No,22, first floor Mr. Ashok Kumar Wheatcrofts Road Shukla Nungambakkam, Chennai-600034 Mr.Bivashwa Das E-mail:tnt.share@yahoo.in Stake holders Relationship Committee: contact@tntpipes.com Mrs.Priya Krishna Ph:+914428555653/28555673 Mrs. Divya Abhishek Ms. M Indumathi Mr. Ashok Kumar Shukla Factory: Mr. Krishnan Kamal Shukla B-10, Industrial Complex, Maraimalai Health, Safety, Env. & Women Nagar-603209 Protection Committee Chengalpattu District Mrs.Divya Abishek Ph: +914427452233 Ms. M. Indumathi Bankers Mrs.Priya Krishna City Union Bank Mr. Bivashwa Das Executive Officers Mr. K Suresh Independent Directors‟ Meeting Company Secretary & Compliance Officer Mr.Rajesh Sai Iyer Mrs.Divya Abishek Mrs. Priya Krishna Ms. M. Indumathi REPORT CONTENTS Corporate 01 About the Report Overview 03 MD‟s Message to Shareholder 1-51 04 Mission & Vision 08 Hall Mark of Quality 09 Brand That Cares 11 Financial Highlights 17 Value Added Statement 18 Notice of 47th AGM Statutory 52 Board’s Report Reports 71 Secretarial Audit Report–MR3 52-119 75 Energy Conservation & Technological Absorption 80 Management Discussion & Analysis 85 AOC 2 (RPT) 86 Report on Corporate Governance Financial 116 Analysis of Standalone Financial Stts. Statements 120 Auditor’s Report 120-164 134 Balance Sheet and P&L Account 138 Cash Flow Statement 142 Notes on Accounts 165 Green Initiative Board of Directors Mr. Bivashwa Das Managing Director Mr. Ashok Kumar Shukla Mr. Ram Ashish Singh Mr.Krishnan Kamal Shukla Whole-Time Director Whole-Time Director Whole-Time Director CMA Mr. Rajesh Sai Iyer CMA Mrs. Divya Abhishek Mrs Priya Krishna, CA. Mrs.M. Indhumathi Independent Director Independent Director Independent Director Independent Director Corporate Overview About the Report Scope and Boundary of Reporting and Reporting Period At TNT, we believe in an integrated approach that prioritizes growth, sustainability, innovation, and inclusive development. Our Integrated Report 2025-26 provides important information to all our stakeholders, including our performance, governance, material risks and opportunities, strategy, and future prospects. This report covers risk management, and material information related to our strategy and business model, operating context, stakeholder interests, and governance. Our goal is to create long-term value for our stakeholders in an ethical manner, using various forms of capital available to us and pursuing value-accretive activities. The Report also covers financial and non-financial information and activities of TNT for the period April 1, 2025, to March 31, 2026, while the financial information has been audited by M/s. DPV & Associates, Chartered Accountants. Financial and Non-Financial Reporting We aim to provide information that goes beyond financial aspects and includes non- financial performance, opportunities, risks and outcomes that are associated with our key stakeholders and have a significant impact on our ability to create value Reporting Principles The Report is prepared in line with the Companies Act, 2013 (and the Rules made there under), Indian Accounting Standards, SEBI (Listing Obligation sand Disclosure Requirements) Regulations, 2015, Secretarial Standards. Forward-looking Statements Certain statements in this Report relating to our business operations and prospects may be forward-looking statements. These statements can be identified by usage of words such as ‘believes, ‘estimates’, ‘anticipates’, ‘expects’, ‘intends’, ‘may, ‘will, ‘plans’, ‘outlook’ and other words of similar meaning in connection with a discussion of future operating or financial performance. These forward-looking statements are dependent on assumptions, data or methods that may be incorrect or imprecise and hence may be incapable of being realized. Such statements are not guaranteed of future operating, financial and other results, but constitute our current expectations based on reasonable assumptions. The Company’s actual results could materially differ from those projected in any forward- looking statements due to various future events, risks and uncertainties some of which are beyond our control. We do not assume any obligation to update or revise any forward- looking statements, whether as a result of new information, future events or otherwise. Target Readers Our primary aim in this report is to provide investors, both current and potential, with the information they require. However, we have also endeavored to present this information in a manner that is relevant to other key stakeholders, including our customers, regulators, and employees, at large. Frameworks, Guidelines and Standards We have prepared this report according to the Comprehensive option of GRI Standards. This report also aligns with • The Companies Act, 2013(and the rules made thereunder) • Task Force on Climate-related Financial Disclosures (TCFD) Page 1 47th Annual Report | 2025-26 • National Voluntary Guidelines on Social, Environmental and Economic Responsibilities of Business (NVG-SEE) • Indian Accounting Standards • SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 • Secretarial Standards issued by the Institute of Company Secretaries of India Data Integrity Our goal is to ensure the accuracy, reliability, comparability, and co [Showing first 8,000 characters — download PDF for full document]