Issued by: ADATA Issued on: 2022/01/07 Taipei, Taiwan, R.O.C. – January 7, 2022 –ADATA today announced its consolidated sales of December 2021 was NT$ 3.27 billion, a 16.8% increase compared with the same period of NT$2.8 billion in 2020. Consolidated sales for the fourth quarter of 2021 was NT$10.17 billion, an increase of 5% quarter-over-quarter. Accumulated net sales for 2021 was NT$39.57 billion, a 23.36% increase compared to 2020. ADATA December Sales Report (Consolidated) (Unit: NT$ million) Period December-21 M-O-M Y-O-Y January to December Y-O-Y Net sales 3,267 -8.65% 16.8% 39,572 23.36% Sales by Product for December 2021: DRAM 48.71% SSD 29.57% Others 21.72% *Year 2021 figures have not be audited.