HONG KONG – Incheon, South Korea-based Celltrion Inc. is planning to launch two of its three rapid test kits in the U.S. as it plays its part in the global fight against the COVID-19 pandemic. Celltrion said Aug. 12 that its Sampinute COVID-19 Antigen MIA and Diatrust COVID-19 IgG/IgM rapid test kits will launch in the U.S. by the third week of August.