  An electron ion collider has been proposed in China (EicC). It is anticipated
that the facility would provide polarised electrons, protons and ion beams, in
collisions with large centre-of-mass energy. This discussion highlights its
potential to address issues that are central to understanding the emergence of
mass within the Standard Model, using examples that range from the exploration
of light-meson structure, through measurements of near-threshold
heavy-quarkonia production, and on to studies of the spectrum of exotic
hadrons.
