The Flag: São Tomé & Príncipe emoji is a flag sequence combining ? Regional Indicator Symbol Letter S and ? Regional Indicator Symbol Letter T. These display as a single emoji on supported platforms.
Flag: São Tomé & Príncipe was added to Emoji 1.0 in 2015.
U+1F1F8
U+1F1F9
?? Regional indicator symbol letter s
?? Regional indicator symbol letter t