Package: tetex-tex4ht

"tetex-tex4ht" package binaries on CentOS:

/usr/bin/htcontext /usr/bin/htlatex /usr/bin/httex /usr/bin/httexi /usr/bin/htxelatex /usr/bin/htxetex /usr/bin/mk4ht /usr/bin/t4ht /usr/bin/tex4ht /usr/bin/tex4ht-ht

You may install this package on CentOS with yum install tetex-tex4ht