Intimation of Closure of Trading window

CUBEX TUBINGS LIMITED ) (AN ISO 9001:2008 CERTIFIED COMPANY) CIN: L27109TG1979PLC002504 Date: 28.09.2026 To, To, BSE Limited The Manager, Phiroze Jeejeebhoy 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 Sub: Intimation of Closure of Trading Window Dear Sir/Madam, This is to inform that in terms of Company's "Code of Conduct for Regulating, Monitoring & Reporting of Trading by Designated Persons & their Immediate Relatives and for Fair Disclosure” ("the Code"), the trading window shall remain closed from October 1, 2026 till 48 hours from the date of Board Meeting in which the financial results for the second quarter and half year ending on September 30, 2026 are approved, for trading in equity shares CUBEX TUBINGS LIMITED ("the Company" "CTL"), The trading window will re-open after 48 hours from the date of approval of the financial results of the Company for the second quarter and half year ending on September 30, 2026. During the above period of closure of trading window, all the designated persons and their immediate relatives have been advised not to deal in CTL's equity shares The date of Board Meeting of CTL to be convened for consideration and approval of financial results for the second quarter and half year ending on September 30, 2026, will be intimated in due course. Kindly acknowledge the receipt of the same. Thanking You, Yours Faithfully, For CUBEX TUBINGS LIMITED VIRENDRA Digitally signed by VIRENDRA BHANDAR BHANDARI : Date: 2026.09.28 Virendra Bhandari | 11:12:05 +0530" Managing Director DIN: 00062228 REGD. OFFICE : 1-7-27 TO 34, 2ND FLOOR, SHYAM TOWERS, S.D. ROAD, SECUNDERABAD - 500 003. TELANGANA TEL: 040-27817440, 27817436 ADMN. OFFICE & FACTORY : SURVEY NOS. 464 & 482, NEAR IDA, PHASE-V, PATANCHERU - 502 319, SANGAREDDY DIST. TELANGANA TEL : 08455-285362, 285363, FAX : 08455-241675, email : cubex@rediffmail.com KOLKATA: 033-22436184, FAX : 28610672, CHENNAI : 044-22483187, FAX : 22484630