Several Korean companies are exporting Covid-19 tests to the US with a rise in Omicron variant of the SARS-CoV-2 virus, Koreanbiomed reported. South Korean firm Humasis entered an agreement with Celltrion to distribute Covid-19 antigen self-test kits worth $43.5m to the US. Humasis jointly developed Covid-19 antigen diagnostic kits with Celltrion and produces Covid-19 testing kits of the latter. Meanwhile, another Korean company SD Biosensor received emergency use authorization from the US Food and Drug Administration for its Covid-19 self-test kit COVID-19 At-Home Test. The company also signed a strategic collaboration with Roche enabling its entry into the US market.