| 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 | % | Dublin, Ireland | |||
| 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. (49% owned by Trio-Tech International Pte. Ltd. and 51% owned by Trio-Tech International (Thailand) Co. Ltd.) |
100 | % | Bangkok, Thailand | |||
|
Trio-Tech (Malaysia) Sdn. Bhd. (55% owned by Trio-Tech International Pte. Ltd.) |
55 | % | Penang and Selangor, Malaysia | |||
|
Trio-Tech (Kuala Lumpur) Sdn. Bhd. (100% owned by Trio-Tech Malaysia Sdn. Bhd.) |
55 | % | Selangor, Malaysia | |||
|
Prestal Enterprise Sdn. Bhd. (76% owned by Trio-Tech International Pte. Ltd.) |
76 | % | Selangor, Malaysia | |||
| Trio-Tech (Suzhou) Co. Ltd. * | 100 | % | Suzhou, China | |||
|
Trio-Tech (Shanghai) Co. Ltd. * (Dormant) (Operation ceased on January 1, 2012) |
100 | % | Shanghai, China | |||
| Trio-Tech (Chongqing) Co. Ltd. * | 100 | % | Chongqing, China | |||
|
SHI International Pte. Ltd. (55% owned by Trio-Tech International Pte. Ltd.) |
55 | % | Singapore | |||
|
PT SHI Indonesia (100% owned by SHI International Pte. Ltd) |
55 | % | Batam, Indonesia | |||
| Trio-Tech (Tianjin) Co. Ltd. * | 100 | % | Tianjin, China | |||
* 100% owned by Trio-Tech International Pte. Ltd.