Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 regarding the proposed preferential issue of convertible warrants at the Extraordinary General Meeting scheduled for 6 November 2026

Date:04.11.2026 To, To, BSE Limited The Manager, PhirozeJeejeebhoy Towers, Department of Corporate Services, Dalal Street, The National Stock Exchange of India Limited Mumbai- 400 001 BKC Complex, Bandra (East), Mumbai Scrip Code: 526027 NSE Code: CUBEXTUB Subject — Disclosure under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 regarding the proposed preferential issue of convertible warrants at the Extraordinary General Meeting scheduled for 6 November 2026 Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we submit the following clarifications in respect of Query No. 2 of the National Stock Exchange of India Limited’s letter dated 4 November 2026 bearing reference NSE/LIST/58071 and Query No. 3 of BSE Ltd dated 04.11.2026 The clarifications relate to the proposed preferential issue of up to 50,00,000 convertible warrants at ₹150 per warrant, aggregating to up to ₹75 crore, under Item No. 1 of the original Notice dated 14 October 2026 convening the Extraordinary General Meeting of the Company on Friday, 6 November 2026 at 10:30 a.m. IST through video conferencing or other audio-visual means, read with the Corrigendum dated 30 October 2026. 1. Applicability of open offer requirements The Company confirms that the proposed preferential issue of convertible warrants and the acquisition of equity shares upon conversion of those warrants, on the terms disclosed in the original EGM Notice read with the Corrigendum, the conversion will be done strategically in a such a way that it doesn’t trigger an obligation to make an open offer under the SEBI (Substantial Acquisition of Shares and Takeovers) Regulations, 2011. 2. Object-wise allocation of the proposed preferential issue proceeds Amount to be funded from the Object preferential issue proceeds (₹ Proposed timeline for crore) utilisation 1 Land and civil and electrical works 50 In and around December, 2026 2 Vacuum induction melting furnace 25 In and around July, 2027 Expected Trail of the Project – Total proposed issue proceeds 75.00 Aug/Sep 27 The estimated project cost is ₹87 crore, of which ₹75 crore is proposed to be funded from the preferential issue proceeds and the balance ₹12 crore from the Company’s reserves. This disclosure shall form part of the original EGM Notice dated 14 October 2026 and the Corrigendum dated 30 October 2026. The original EGM Notice, the Corrigendum and this disclosure shall all be read and considered together in relation to the proposed preferential issue of convertible warrants under Item No. 1 of the EGM Notice. Kindly take the above disclosure on record and disseminate Yours faithfully, For Cubex Tubings Limited Virendra Bhandari Managing Director DIN 00062228