The 1st and 2nd of the electron-ion colliderin China (EicC) meetings were hosted at IMP, Lanzhou. In order to attract more support from both domestic and international support, we will schedule one third of our meetings in Kunshan, Jiangsu province. During this meeting, we invite world experts on the physics and accelerator of the polarized electron-ion collider to discussion the issuesrelated to the accelerator design and physics potentials. Physics goals, results of the detector simulations, design and the most recent accelerator designs will be discussed.