From the SXM government website:

"The list of acceptable rapid antigen tests includes the Abbott (CGIA Panbio COVID-19 Ag rapid test), Becton Dickinson (CGIA BD Veritor COVID-19 test), Roche (SD Biosensor F test) and Abbott BinaxNOW COVID-19 Ag Card. The list is constantly being reviewed as government continues to seek the most accurate alternatives to the PCR test which remains St. Maarten’s gold standard testing method."