Dear Sir/Madam, Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligation and Disclosure Requirements) Regulations, 2015, we would like to inform you that: ....

CRYSTAL BUSINESS SYSTEM LIMITED CIN: L92100DL1994PLC059093 Registered Office: 37, Second Floor, Rani Jhansi Road, Motia Khan, Paharganj, New Delhi- 110055 Email ID: cbnl.delhi@gmail.com, Website: www.sadhna.com Phone: 91-11-23552627, Fax No.: 91-11-23524610 Date: 07.08.2026 BSE Limited Metropolitan Stock Exchange Limited Phiroze Jeejeebhoy Towers, 205(A), 2nd floor, Piramal Agastya Corporate Park, Dalal Street, Kamani Junction, LBS Road, Kurla (West), Mumbai- 400001 Mumbai-400070 Scrip Code: 540821 Scrip Symbol: CRYSTAL Subject: Intimation regarding Resignation of Company Secretary and Compliance Officer of the Company under Regulation 30 of the SEBI (Listing Obligation and Disclosure Requirements) Regulations, 2015 Dear Sir/Madam, Pursuant to Regulation 30 of the Securities and Exchange Board of India (Listing Obligation and Disclosure Requirements) Regulations, 2015, we would like to inform you that: i. Ms. Khushi Jain (ACS: 79892) has resigned from the post of Company Secretary & Compliance Officer of the Company with effect from 07th August, 2026. The Company is in the process of identifying/hiring a suitable candidate for the said position and shall inform the Stock Exchanges once the vacancy is filled up. Details as required under Regulation 30 read with Part A, Para A of Schedule Ill of the SEBI Listing Regulations, 2015 and SEBI Circular No SEBI/HO/CFD/PoD2/CIR/P/0155 dated 11 November 2024 along with Resignation Letter, with respect to resignation of Company Secretary, Compliance Officer and Nodal Officer are enclosed as Annexure I along with resignation letter. You are requested to take note of the same & make necessary changes in your records. Thanking you, For Crystal Business System Limited Bal Mukund Tiwari Managing Director DIN: 02566683 Place: New Delhi CRYSTAL BUSINESS SYSTEM LIMITED CIN: L92100DL1994PLC059093 Registered Office: 37, Second Floor, Rani Jhansi Road, Motia Khan, Paharganj, New Delhi- 110055 Email ID: cbnl.delhi@gmail.com, Website: www.sadhna.com Phone: 91-11-23552627, Fax No.: 91-11-23524610 Annexure I BRIEF PROFILE OF THE COMPANY SECRETARY AND COMPLIANCE OFFICER [In pursuance of Regulation 30 and part A of Schedule III of Securities Exchange Board of India (Listing Obligations and Disclosure Requirements) Regulations, 2015] Sr. Particulars Details 1. Reason for change viz. Ms. Khushi Jain has tendered her resignation from the Post appointment, resignation, removal, of Company Secretary and Compliance Officer w.e.f 07th death and otherwise August, 2026 due to personal and unavoidable circumstances. 2. Date of Cessation 07th August, 2026 3. Brief Profile Not Applicable 4. Disclosure of relationship with Not Applicable Directors (In case of Appointment of director) Date: 07/08/2026 The Board of Directors, Cl'ystal Business System Limited 37, Second Floor, Rani Jhansi Road, Motia Khan, Paharganj, New Delhi, Delhi,110055 SUBJECT: RESIGNATION LETTER FROM THE POST OF COMPANY SECRETARY AND COMPLIANCE OFFICER OF CRYSTAL BUSINESS SYSTEM LIMITED (FORMERLY KNOWN AS SADHNA BROADCAST LIMITED) Dear Sir/Ma'am, This is to inform you that I, I<hushi Jain, hereby tender my resignation from the post of Company Secretary & Compliance Officel' of Crystal Business System Limited ("the Company") due to personal and unavoidable circumstances. The Board is kindly requestc!1 to accept my resignation w.eJ. 07th August, 2026 and arrange to submit necessary forms and intimation with the concerned authorities to give effect of this resignation. 1 woulcllike to thank the Board of Directors and my team for the support extended during my tenUl'e as Company Secretary & Compliance Officer of the Company. 1 kindly request the Board of Directors to relieve me from the duties of my post with effect from 07th August, 2026. Thanking you, Yours Faithfully, Khushi Jain Company Secretary & Compliance Officer Membership No: A79892