Taipei, Taiwan, R.O.C. – September 7, 2021 – ADATA today announced its consolidated net sales for August 2021 were NT$3.22 billion, an increase of 20% year-over-year. Accumulated net sales from January to August in 2021 were NT$26.2 billion, a 30.58% increase compared to NT$20.1 billion for the same period in 2020. ADATA August Sales Report (Consolidated) (Unit: NT$ million) Period August-21 M-O-M Y-O-Y January to August Y-O-Y Net sales 3,218 -1.53% 20.0% 26,204 30.58% Sales by Product for August 2021: DRAM 48.21% SSD 32.09% Others 19.7% *Year 2021 figures have not been audited. Investor Relations Caroline Lin/IR Manager Tel:+886-2-8228-0886 ext.12410 Cell:+886-916-655-656 Mail: caroline_lin@adata.com Gloria Chen/ IR Director Tel:+886-2-8228-0886 ext.12400 Cell:+886-916-969-211 Mail: gloria_chen@adata.com