OSAKA, Japan, November 22, 2022 - Shionogi & Co., Ltd. (Head Office: Osaka, Japan; Chief Executive Officer: Isao Teshirogi, Ph.D.; hereafter "Shionogi") today announced that Xocova® (Generic name: ensitrelvir fumaric acid, Code No.: S-217622), a novel anti-SARS-CoV-2 drug for COVID-19, obtained emergency regulatory approval from the Ministry of Health, Labour and Welfare (MHLW) in Japan for the indication of SARS-CoV-2 infection. This approval was granted under the emergency regulatory approval system provided for in Article 14-2-2 of the Pharmaceuticals and Medical Devices Act. In addition, a contract with the MHLW for the Japanese government to purchase 1 million courses of Xocova® is now effective in accordance with the basic agreement for domestic supply of Xocova® signed by Shionogi and the MHLW in March 20221.