Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 ('Listing Regulations'), we hereby intimate that ....

Ref. No. CTL/09/2026-27/BSE Date: 23rd June, 2026 The Manager Corporate Services The Listing Department Bombay Stock Exchange Limited Phiroz Jeejeebhoy Towers, Dalal Street, Mumbai 400 001 Scrip Code: 544546 Dear Sir/Madam, Subject: Intimation of Earnings Conference Call for investors and analysts for FY26 Dear Sir / Madam, Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015 (“Listing Regulations”), we hereby intimate that an Earnings Conference Call for investors and analysts is being organized by the Company, as per the details provided below: Date and Date Time Name of Conference/ Meeting Type Scheduled for Investor/Analysts Monday, 12:00 P.M. Earnings Conference Conference Call Investors/ 29th June 2026 IST Call – FY26 (Telecommunication) Analyst Group Invite in this regard is enclosed for your information and record. The same is also available on the website of the Company at https://chtrbox.com/investors The same may please be taken on record and suitably disseminated to all concerned. Thanking you. Yours faithfully, For CHATTERBOX TECHNOLOGIES LIMITED (FORMERLY KNOWN AS CHATTERBOX TECHNOLOGIES PRIVATE LIMITED) RAJNANDAN MISHRA MANAGING DIRECTOR (DIN: 10815241) Unit No. 1101 & 1102, 11th Floor, Lotus signature, Off Veera Desai Road, Andheri West, Mumbai -400053 Mumbai | Delhi | www.chtrbox.com| CIN: L93000MH2016PLC273833 Email ID: info@chtrbox.com Tel: +91 22 4451 4288 C T L HATTERBOX ECHNOLOGIES IMITED Cordially invites you to its Maiden Earnings Conference Call To discuss the operational and financial performance for FY26 Day/Date: Monday, 29th June 2026 Time: 12:00 PM (IST) Access Numbers +91 22 6280 1102 Primary Numbers: +91 22 7115 8003 USA: 18667462133 UK: 08081011573 International Toll-Free Numbers: Singapore: 8001012045 Hongkong: 800964448 Diamond Pass Link Click Here Management Representatives: Mr. Raj Mishra – Managing Director & CEO Ms. Pooja Mehta – CFO We look forward to your participation For further information, please contact: Adfactors PR Vishal Bhalada / Shubham Sangle Tel: 98333 63253 / 70395 16755 Email: vishal.bhalada@adfactorspr.com / shubham.sangle@adfactorspr.com