OSAKA, Japan, April 11, 2023 - Shionogi & Co., Ltd. (Head Office: Osaka, Japan; Chief Executive Officer: Isao Teshirogi, Ph.D.; hereafter "Shionogi") announced that TFDA (Taiwan Food and Drug Administration) has accepted an Emergency Use Authorization (EUA) for ensitrelvir fumaric acid (hereafter “ensitrelvir”) for the treatment of COVID-19. This EUA filing was conducted by Taiwan Shionogi & Co., Ltd., (hereafter “Taiwan Shionogi”), the Taiwan subsidiary of Shionogi.