  We report results from searches of pseudoscalar and vector bosonic
super-weakly interacting massive particles (super-WIMP) in the TEXONO
experiment at the Kuo-Sheng Nuclear Power Station, using 314.15 kg days of data
from $n$-type Point-Contact Germanium detector. The super-WIMPs are absorbed
and deposit total energy in the detector, such that the experimental signatures
are spectral peaks corresponding to the super-WIMP mass. Measured data are
compatible with the background model, and no significant excess of super-WIMP
signals are observed. We derived new upper limits on couplings of electrons
with the pseudoscalar and vector bosonic super-WIMPs in the sub-keV mass
region, assuming they are the dominant contributions to the dark matter density
of our galaxy.
