  This overview describes several science cases at the Electron-Ion-Collider
(EIC) experiment which are traditional to general particle physics. It has an
emphasis on connections between future measurements at the EIC and the physics
topics explored at high-energy frontier colliders. It covers several selected
topics, such as parton density functions, multi-quarks states, correlations of
final-state particles, precision QCD measurements and forward jet physics. We
will discuss possible EIC measurements that can improve previous experimental
results obtained at high-energy (HEP) experiments.
