  We discuss the production of the exotic doubly-charmed tetraquark mesons
${\rm T}_{{\rm c}{\rm c}}({\rm c}{\rm c}\bar{\rm u}\bar{\rm d})$ from
electron-positron collisions. ${\rm T}_{{\rm c}{\rm c}}({\rm c}{\rm c}\bar{\rm
u}\bar{\rm d})$ is a compact exotic hadron whose binding energy is provided by
the diquark correlations. We evaluate the production cross section in the
electron-positron collisions using the nonrelativistic QCD framework, and
investigate the difference of the production cross section for different color
configurations in two charm quarks (antitriplet and sextet), where the mixing
of different configurations is suppressed in the heavy quark limit. The total
cross section is estimated by modeling the nonperturbative fragmentation
process of the charm quark pair into the tetraquark by the wavefunction of the
tetraquark and the probability of picking up the light quarks. We find that the
internal color configurations are distinguishable by the qualitative features
of the differential cross sections which are independent of the nonperturbative
matrix elements.
