Mr. S Ramesh, Company Secretary & Compliance Officer has resigned from the service of the Company vide letter dated 12th August 2026 on health grounds after serving a notice period of one month.

Regd Ofc: 714A, Spencer Plaza, phase II, 7th Floor, Anna Salai, Anna Road, Chennai, Tamil Nadu – 600002, Phone: 4321 9096 / 226 22460 CIN: L29142TN1988PLC015647, Email id: cs@stg-india.com, GSTIN: 33AAACS5033J1ZL Date: 13th August 2026 The Manager – Listing Department BSE Limited Phiroze Jeejeebhoy Towers, Dalal Street, Mumbai – 400001 Subject: Intimation under Regulation 30 of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 – Resignation of Company Secretary & Compliance Officer Dear Sir/Madam, Pursuant to Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015, we hereby inform you that Mr. S. Ramesh, Company Secretary & Compliance Officer of Switching Technologies Gunther Limited, has resigned from the services of the Company vide his resignation letter dated 12th August 2026. Mr. S. Ramesh has resigned on health grounds and has requested to be relieved after serving a notice period of one month. Attached herein the resignation letter for your reference. The Board of Directors of the Company, at its meeting held on 12th August 2026, has taken note of and accepted the resignation. The requisite disclosure as required under Regulation 30 of the SEBI LODR Regulations is enclosed herewith as Annexure A. Kindly take the same on record. For Switching Technologies Gunther Limited Sougata Sengupta Director DIN: 00614643 Encl.: Annexure A Regd Ofc: 714A, Spencer Plaza, phase II, 7th Floor, Anna Salai, Anna Road, Chennai, Tamil Nadu – 600002, Phone: 4321 9096 / 226 22460 CIN: L29142TN1988PLC015647, Email id: cs@stg-india.com, GSTIN: 33AAACS5033J1ZL ANNEXURE A Disclosure as required under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015 Particulars Details Mr. S. Ramesh, Company Secretary & Compliance Reason for change viz. appointment, Officer of the Company, has resigned from the services 1. re-appointment, resignation, removal, of the Company vide his resignation letter dated 12th death or otherwise August 2026. The resignation has been tendered on health grounds. Date of appointment/re- Mr. S. Ramesh shall serve a one-month notice period appointment/cessation (as applicable) and shall cease to be Company Secretary & & term of appointment/re- Compliance Officer with effect from 11th September appointment 2026. 3. Brief profile (in case of appointment) Not Applicable Disclosure of relationships between 4. directors (in case of appointment of a Not Applicable director) For Switching Technologies Gunther Limited Sougata Sengupta Director DIN: 00614643