  It has been an unanswered question how many dusty galaxies have been
undetected from the state-of-the-art observational surveys. JWST enables us to
detect faint IR galaxies that have prominent polycyclic aromatic hydrocarbon
(PAH) features in the mid-IR wavelengths. PAH is a valuable tracer of star
formation and dust properties in the mid-infrared wavelength. The JWST Cosmic
Evolution Early Release Science (CEERS) fields provide us with wavelength
coverage from 7.7 to 21 $\mu$m using six photometric bands of the mid-infrared
instrument (MIRI). We have identified galaxies dominated by mid-IR emission
from PAHs, termed PAH galaxies. From our multi-band photometry catalogue, we
selected ten PAH galaxies displaying high flux ratios of $\log(S_{15}/S_{10}) >
0.8$. The SED fitting analysis indicates that these galaxies are star-forming
galaxies with total IR luminosities of $10^{10}$ $\sim$ $10^{11.5}$ $L_{\odot}$
at z $\sim 1$. The morphology of PAH galaxies does not show any clear
signatures of major merging or interaction within the MIRI resolution. The
majority of them are on the star-formation main sequence at $z \sim 1$. Our
result demonstrates that JWST can detect PAH emissions from normal star-forming
galaxies at $z \sim 1$, in addition to ultra-luminous infrared galaxies
(ULIRGs) or luminous infrared galaxies (LIRGs).
