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Note 1 - Organization and Basis of Presentation (Tables)

3 Months Ended

Sep. 30, 2025

	Ownership			Location
Express Test Corporation (Dormant)		100	%	Van Nuys, California
Trio-Tech Reliability Services (Dormant)		100	%	Van Nuys, California
KTS Incorporated, dba Universal Systems (Dormant)		100	%	Van Nuys, California
European Electronic Test Centre (Dormant)		100	%	Cayman Islands
Trio-Tech International Pte. Ltd.		100	%	Singapore
Universal (Far East) Pte. Ltd.*		100	%	Singapore
Trio-Tech International (Thailand) Co. Ltd. *		100	%	Bangkok, Thailand
Trio-Tech (Bangkok) Co. Ltd. *		100	%	Bangkok, Thailand
Trio-Tech (Malaysia) Sdn. Bhd. (55% owned by Trio-Tech International Pte. Ltd.)		55	%	Penang and Selangor, Malaysia
Prestal Enterprise Sdn. Bhd. (76% owned by Trio-Tech International Pte. Ltd.)		76	%	Selangor, Malaysia
Trio-Tech (SIP) Co., Ltd. *		100	%	Suzhou, China
Trio-Tech (Chongqing) Co. Ltd. *		100	%	Chongqing, China
SHI International Pte. Ltd. (Dormant) (55% owned by Trio-Tech International Pte. Ltd)		55	%	Singapore
PT SHI Indonesia (Dormant) (95% owned by SHI International Pte. Ltd.)		52	%	Batam, Indonesia
Trio-Tech (Tianjin) Co., Ltd. *		100	%	Tianjin, China
Trio-Tech (Jiangsu) Co., Ltd. (100% owned by Trio-Tech (SIP) Co., Ltd.)		100	%	Suzhou, China