In TeXForm#
TeXForm parses this entry as a character leaf mapped to U+2A3F (AMALGAMATION OR COPRODUCT).
The ⨿ symbol (Amalgamation or coproduct, U+2A3F), written as \amalg in LaTeX math mode.
TeXForm parses this entry as a character leaf mapped to U+2A3F (AMALGAMATION OR COPRODUCT).