Certificate under Reg 74(5) of the SEBI (Depositories & Participants) Reg 2018, for the quarter ended 30th September 2026

Regd O(cid:431)ice: 714A, Spencer Plaza, phase II, 7th Floor, Anna Salai, Anna Road, Chennai, Tamil Nadu – 600002 CIN: L10790TN1988PLC015647, Email id: cs@stg-india.com, GSTIN: 33AAACS5033J1ZL Date: 08/10/2026 The Corporate Relationship Department BSE Limited Phiroze Jeejeebhoy Towers Dalal Street Mumbai 400 001 BSE Scrip Code: 517201 Dear Sir/Madam, Subject: Certificate under Regulation 74(5) of the SEBI (Depositories and Participants) Regulations, 2018 for the Quarter ended 30" September 2026 In compliance with Regulation 74(5) of SEBI (Depositories and Participants) Regulations, 2018, we are forwarding herewith a copy of the Certificate received from M/s. Cameo Corporate Services Limited, Chennai, the Registrar and Share Transfer Agents (RTA) of the Company for the quarter ended 30th September 2026. Kindly take the above document on record. Kindly take note of the above. Thanking You, Yours faithfully, For SWITCHING TECHNOLOGIES GUNTHER LIMITED Simran Agarwal Company Secretary CAMEO CORPORATE SERVICES LIMITED Ref: CAM/SWT/74(5)/2026 5th October, 2026 THE COMPANY SECRETARY M/S. SWITCHING TECHNOLOGIES GUNTHER LTD B-9, MADRAS EXPORT PROCCESSING ZONE, TAMBARAM, CHENNAI 600045 Dear Sir Subject: Certificate under of Regulation 74(5) of Securities and Exchange Board of India (Depositories and Participants) Regulations, 2018 for the quarter ended 30.09.2026. ------ With reference to the above captioned subject, we hereby confirm that the securities received from the depository participants for dematerialisation during the quarter ended 30th September 2026, were confirmed (accepted/rejected) to the depositories by us and that securities comprised in the said certificates have been listed on the stock exchanges where the earlier issued securities are listed. We hereby also confirm that the security certificates received for dematerialisation have been mutilated and cancelled after due verification by the depository participant and the name of the depositories have been substituted in register of members as the registered owner within stipulated time limit under captioned regulations. Thanking you Yours faithfully For CAMEO CORPORATE SERVICES LIMITED ASST. MANAGER (SHARES) CIN No:U67120TN1998PLC041613 'Subramanian Building', No.1, Club House Road, Chennai-600 002. Phone: (D) 044-40020710 / 044-2846 0390, Fax: 044-2846 0129 E-mail: cameo@cameoindia.com Website: www.cameoindia.com