Subsidiaries

1. Duwell Intertrade Co., Ltd.
Qualitech Public Company Limited holds shares at 99.99 percent with a registered capital of 20,000,000 Baht and fully paid-up capital of 9,930,000 Baht. The company operates as a distributor of tools and equipment related to non-destructive testing engineering.

2. Qualitech Solution Energy Co., Ltd.
Qualitech Public Company Limited holds shares at 99.99 percent with a registered capital of 50,000,000 Baht and fully paid-up capital of 17,499,895 Baht. The company operates in the production and distribution of electricity from solar energy and other renewable sources.

3. Qualitech Myanmar Co., Ltd.
Qualitech Public Company Limited holds shares at 80 percent with a registered capital of 200,000 USD and fully paid-up capital. The company provides engineering safety services in Myanmar and engages in related businesses.