 BEIJING, July 26, 2021 GLOBE NEWSWIRE -- Genetron Holdings Limited Genetron Health or the Company, NASDAQ: GTH, today announced that its AYVAKIT avapritinib companion diagnostic CDx kit, developed in partnership with CStone Pharmaceuticals CStone, HKEX: 2616 has entered the priority review and approval process under the National Medical Products Administration NMPA in China. 