On February 07, 2023, Sieu Thanh Joint Stock Corporation announces the registration of the change of corporate structure and financial statements as follows:

1. Information before change:
2. Corporate structure:

x Having no affiliates or sub-units

□ Having sub-units

□ Having affiliates

□ Having affiliates and sub-units

2.  Type of financial statements to be disclosed:

x Separate financial statements

□ Combined financial statements

□ Consolidated financial statements

II.  Information after change:

1. Corporate structure:

□ Having no affiliates or sub-units

□ Having sub-units

x Having affiliates

□ Having affiliates and sub-units

2. Financial statements to be disclosed

x Separate financial statements

□ Combined financial statements

x Consolidated financial statements.

-      Reason for change: On February 07, 2023, Sieu Thanh Joint Stock Corporation became a subsidiary of ST8.

-      Effective date: February 07, 2023.