Saffron Capital Advisors Pvt Ltd ("Manager to the Open Offer") has submitted to BSE a copy of Reminder Advertisement dated August 10, 2026 for attention of the Public Shareholders of Duke ....

Saffron Capital Advisors Private Limited 304, A Wing, 215 Atrium, M V Road, Chakala, Andheri East, Mumbai-400093 Tel.: +91-22-49730394 Email: info@saffronadvisor.com Website: www.saffronadvisor.com CIN No.: U67120MH2007PTC166711 August 11, 2026 Listing Department BSE Limited Phiroze Jeejeebhoy Towers Dalal Street, Mumbai – 400001 Scrip Code: 531471 Dear Sir, Subject: Open Offer by Aspect Global Ventures Private Limited ("Acquirer"), to acquire up to 25,62,872 (Twenty Five Lakh Sixty Two Thousand Eight Hundred and Seventy Two) fully paid-up Equity Shares of face value of ₹ 10/- (Rupees Ten only) each for cash at a price of ₹ 30/- (Rupees Thirty only) per Equity Shares aggregating up to ₹ 7,68,86,160/- (Rupees Seven Crore Sixty Eight Lakhs Eighty Six Thousand One Hundred Sixty only), representing 26% (Twenty Six Percent) of the Voting Share Capital of the Duke Offshore Limited (“Target Company”), to the Public Shareholders of Target Company pursuant to and in compliance with the requirements of the Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, as amended (“SEBI (SAST) Regulations, 2011”) (“Offer” Or “Open Offer”) We have been appointed as ‘Manager’ to the captioned Open Offer by the Acquirer in terms of Regulation 12(1) of the SEBI (SAST) Regulations, 2011. In this regard, we are enclosing the following for your kind reference and records: A copy of “Reminder Advertisement” dated August 10, 2026. The Reminder Advertisement was published today i.e., on August 11, 2026, in the following newspapers: - Sr. Newspapers Language Editions 1 Financial Express English All Editions 2 Jansatta Hindi All Editions 3 Navshakti Marathi Mumbai Edition – Place where registered office of the Target Company is situated and Place of Stock Exchange at which shares of the Target Company are listed In case of any clarification required, please contact the person as mentioned below: Contact Person Designation Contact Number E-mail Id Pooja Jain Senior Manager pooja@saffronadvisor.com +91-022-49730394 Shivam Sharma Assistant Manager shivam@saffronadvisor.com We request you to kindly consider the attachments as good compliance and disseminate it on your website. For Saffron Capital Advisors Private Limited Pooja Jain Senior Manager Equity Capital Markets Encl: a/a Registered Office: 605, Sixth Floor, Centre Point, J B Nagar, Andheri East, Mumbai-400059/ SEBI Registration No: INM000011211 DUKE OFFSHORE LIMITED Registered Office: 403-Urvashi HSG Society Ltd, Off Sayani Road, Prabhadevi, 400025. Mumbai, Maharashtra, India. | Corporate Identification Number (CIN): L45209MH1985PLC038300 Tel. No.: 91- 8828846847 | Email id: info@dukeoffshore.com | Website: www.dukeoffshore.com This Advertisement is being issued by, Saffron Capital Advisors Private Limited (“Manager to the Open Offer”), on behalf of, Aspect Global Ventures Private Limited (“Acquirer”), to acquire up to 25,62,872 (Twenty Five Lakh Sixty Two Thousand Eight Hundred and Seventy Two) fully paid-up Equity Shares of face value of `10/- (Rupees Ten only) each for cash at a price of `30/- (Rupees Thirty only) per Equity Shares aggregating up to `7,68,86,160/- (Rupees Seven Crore Sixty Eight Lakhs Eighty Six Thousand One Hundred Sixty only), representing 26% (Twenty Six Percent) of the Voting Share Capital of the Duke Offshore Limited (“Target Company”), to the Public Shareholders of Target Company pursuant to and in compliance with the requirements of the Securities and Exchange Board of India (Substantial Acquisition of Shares and Takeovers) Regulations, 2011, as amended (“SEBI (SAST) Regulations, 2011”) (“Offer” or “Open Offer”). Kind Attention- Physical Shareholders of Duke Offshore Limited Eligible Shareholders holding Equity Shares in physical form and who have not received the physical copy of Letter of Offer (“LOF”) for any reason whatsoever, may send request to Registrar to the Open Offer, Cameo Corporate Services Limited at rights@cameoindia.com and avail soft copy of the LOF. Alternatively, Eligible Shareholders may also download the soft copy of LOF from the websites of SEBI i.e., www.sebi.gov.in or Manager to the Open Offer www.saffronadvisor.com or BSE www.bseindia.com. Eligible Shareholders are required to refer to the Section titled “Procedure for Acceptance and Settlement of the Offer” at page no. 48 of the LOF in relation to inter alia the procedure for tendering their Equity Shares in the Open Offer and are required to adhere to and follow the procedure outlined therein. Capitalized terms used but not defined in this Advertisement shall have the same meanings assigned to such terms in the Public Announcement and/or DPS and/or LOF and/or Offer Opening Public Announcement and Corrigendum. The Acquirer accepts full responsibility for the information contained in this Advertisement and also for the obligations of the Acquirer as laid down in SEBI (SAST) Regulations, 2011. ISSUED BY THE MANAGER TO THE OPEN OFFER ON REGISTRAR TO THE OPEN OFFER BEHALF OF THE ACQUIRER SAFFRON CAPITAL ADVISORS PRIVATE LIMITED CAMEO CORPORATE SERVICES LIMITED 605, Sixth Floor, Centre Point, Andheri-Kurla Road, Subramanian Building, No. 1, Club House Road, J. B. Nagar, Andheri (East), Mumbai - 400 059, Chennai - 600002, Tamil Nadu, India Maharashtra, India. Tel. No.: +91 44 4002 0700 / 2846 0390 Tel. 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