Submission of Revised Draft letter of Offer for the proposed Rights Issue of our Company.

DUCON INFRATECHNOLOGIES LIMITED Regd. Office: Ducon House, Plot No. A/4, Road No.1, MIDC, Wagle Industrial Estate, Thane (W) – 400 604. India Tel. : 91-22-41122114, Fax 022 41122115 URL : www.duconinfra.co.in CIN: L72900MH2009PLC191412 Date: 3rd August, 2026 To, To, National Stock Exchange of India Limited. BSE Limited, “Exchange Plaza”, C-1, Block G, Phiroze Jeejeebhoy Towers, Bandra-Kurla Complex, Bandra (East), Dalal Street, Mumbai – 400 051. Mumbai- 400001. Dear Sir/ Madam, Sub: Submission of Revised Draft Letter of Offer for the Proposed Rights Issue of Ducon Infratechnologies Limited Ref: Symbol: DUCON | Scrip Code: 534674 | ISIN: INE741L01018 Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby submit the revised Draft Letter of Offer in respect of the proposed Rights Issue of the Company. The same has been (cid:976)iled with the Stock Exchanges and uploaded on the website of the Company. A Revised copy of Draft Letter of Offer of the proposed Rights Issue is enclosed herewith. Kindly take the above information on record and oblige. Thanking You. For, Ducon Infratechnologies Limited Arun Govil Managing Director DIN: 01914619 Letter of Offer Dated: 12th June, 2026 For Eligible Shareholders Only DUCON INFRATECHNOLOGIES LIMITED DRAFT LETTER OF OFFER Our Company was originally incorporated as “Dynacons Technologies Limited” a Public Limited Company under the Companies Act, 1956, pursuant to a Certificate of Incorporation issued by the Registrar of Companies, Mumbai, Maharashtra, on 2nd April, 2009. The Certificate of Commencement of Business was received on 8th February, 2010. The equity shares of the Company were listed and admitted to dealings on the Capital Market Segment (Main Board) of BSE Limited (“BSE”) and National Stock Exchange of India Limited (“NSE”) on 9th October, 2012. Subsequently, the name of the Company was changed to “Ducon Infratechnologies Limited”, and a fresh Certificate of Incorporation dated 30th March, 2016 was issued by the Registrar of Companies, Maharashtra, Mumbai. For further details, please refer to the chapter titled “General Information” on page no. 37 of this Letter of Offer. Corporate Identification Number: L72900MH2009PLC191412; Registered Office: Ducon House, Plot No. A/4, Road No. 1, MIDC, Wagle Industrial Estate, Thane, Maharashtra, India – 400 604; Contact No.: +91-9372239158, Email id: cs@duconinfra.co.in; Fax: +91-22-41122115; Website: www.duconinfra.co.in; Contact Person: Ms. Snehal Sawant, Company Secretary and Compliance Officer PROMOTER OF OUR COMPANY: MR. ARUN GOVIL FOR PRIVATE CIRCULATION TO THE ELIGIBLE EQUITY SHAREHOLDERS OF DUCON INFRATECHNOLOGIES LIMITED (THE “COMPANY” OR THE “ISSUER”) ONLY WEHEREBY CONFIRM THAT NONE OF OUR PROMOTER OR DIRECTORS ARE WILFUL DEFAULTERS AS ON DATE OF THIS LETTER OF OFFER ISSUE OF UPTO [⦁]# FULLY PAID-UP EQUITY SHARES OF FACE VALUE OF RE. 1.00/- EACH (“EQUITY SHARES”) OF DUCON INDRATECHNOLOGIES LIMITED (“DUCON” OR THE “COMPANY” OR THE “ISSUER”) FOR CASH AT A PRICE OF RS. [⦁] PER EQUITY SHARE (INCLUDING SHARE PREMIUM OF RS. [⦁] PER EQUITY SHARE) (“ISSUE PRICE”), AGGREGATING UPTO RS. 25.00 CRORES ON A RIGHTS BASIS TO THE EXISTING EQUITY SHAREHOLDERS OF OUR COMPANY IN THE RATIO OF [⦁] RIGHTS EQUITY SHARES FOR EVERY [⦁] FULLY PAID- UP EQUITY SHARES HELD BY THE ELIGIBLE EQUITY SHAREHOLDERS ON THE RECORD DATE, [⦁] (THE “RECORD DATE”). THE ISSUE PRICE IS [⦁] TIMES OF FACE VALUE OF THE EQUITY SHARES. FOR FURTHER DETAILS, PLEASE SEE THE CHAPTER TITLED “TERMS OF THE ISSUE” ON PAGE NO. 174 OF THIS LETTER OF OFFER. #ASSUMING FULL SUBSCRIPTION OF THE ISSUE SUBJECT TO FINALISATION OF BASIS OF ALLOTMENT. GENERAL RISKS Investments in equity and equity-related securities involve a degree of risk and investors should not invest any funds in this offer unless they can afford to take the risk with such investment. Investors are advised to read the risk factors carefully before taking an investment decision in this offering. For taking an investment decision, investors shall rely on their own examination of the issuer and the offer, including the risks involved. The securities have not been recommended or approved by the Securities and Exchange Board of India (“SEBI”), nor does SEBI guarantee the accuracy or adequacy of this document. Specific attention of the investors is invited to the statement of “Risk Factors” on page no. 24 of this Letter of Offer. OUR COMPANY’S ABSOLUTE RESPONSIBILITY Our Company, having made all reasonable inquiries, accepts responsibility for and confirms that this Letter of Offer contains all information with regard to the issuer and the issue, which is material in the context of the issue, and that the information contained in the Letter of Offer is true and correct in all material aspects and is not misleading in any material respect, that the opinions and intentions expressed herein are honestly held and that there are no other facts, the omission of which makes this document as a whole or any of such information or the expression of any such opinions or intentions, misleading in any material respect. LISTING The existing equity shares are listed on BSE Limited (“BSE”) and National Stock Exchange of India Limited (“NSE”) (together, the “Stock Exchanges”). Our Company has received the ‘In-principle’ approvals from both BSE and NSE for the Rights Equity Shares to be allotted pursuant to this Issue vide their letters dated [⦁] and [⦁]. Our Company will also make an application to the stock exchanges to obtain their trading approval for the Rights Entitlements as required under the SEBI ICDR Master circular bearing reference number SEBI/HO/CFD/PoD-1/P/CIR/2024/0154 dated November 11, 2024. For the purpose of this Issue, the Designated Stock Exchange is National Stock Exchange of India Limited (“NSE”). REGISTRAR TO THE ISSUE BANKERS TO THE ISSUE BIGSHARE SERVICES PRIVATE LIMITED AXIS BANK LIMITED Address: Pinnacle Business Park, Office No. S6-2, 6th Floor, Mahakali Caves Road, Address: Ground Floor, Fortune 2000 Building, Bandra Kurla Complex, Next to Ahura Centre, Andheri (East), Mumbai, Maharashtra, India – 400 093; Bandra East Mumbai – 400 051, Maharashtra; Contact No.: +91-022-62638200; Branch: BKC Branch; Email id: rightsissue@bigshareonline.com; Contact Person Name: Mr. Satish Sagale; Investor Grievance Email id: investor@bigshareonline.com; Contact No.: +91-9167002301; Website: www.bigshareonline.com; Email id: bkc.branchhead@axisbank.com; Contact Person: Mr. Suraj Gupta Website: https://www.axis.bank.in SEBI Registration No.: INR000001385 CIN: U99999MH1994PTC076534 ISSUE PROGRAMME ISSUE OPENS ON LAST DATE FOR MARKET RENUNCIATION* ISSUE CLOSES ON** LAST DATE FOR CREDIT OF RIGHTS DATE OF FINALIZATION OF BASIS OF ALLOTMENT DATE OF ALLOTMENT ENTITLEMENTS DATE OF CREDIT OF RIGHTS EQUITY SHARES DATE OF LISTING *Eligible Equity Shareholders are requested to ensure that renunciation through off-market transfer is completed in such a manner that the Rights Entitlements are credited to the demat account of the Renouncees on or prior to the Issue Closing Date. **Our Board or the Rights Issue Committee thereof will have the right to extend the Issue period as it may determine from time to time, provided that this Issue will not remain open in excess of 30 (Thirty) days from the Issue Opening Date. Further, no withdrawal of Application shall be permitted by any Applicant after the Issue Closing Date. 1 | Page (This page [●] is intentionally left blank) 2 | Page TABLE OF CONTENTS CONTENTS Page No. Section – I Definitions and Abbreviations 05 Conventional and General Terms 05 Technical and Industry Related Terms/ Abbreviations 06 Issue Related Terms 10 Notice to Investors 14 No offer in the United States 15 Presentation of Financial Information and Use of Market Data 16 Forward Looking Statements 18 Section II – Summary of Letter of Offer 19 Section III – Risk Factors 24 Section IV – Introduction 36 S [Showing first 8,000 characters — download PDF for full document]