 In the same year, King Zhaoxiang had his coming-of-age ceremony, and began to personally attend state affairs.In 304 BC, King Zhaoxiang met with King Huai of Chu in Huangqi (黃棘) to negotiate an alliance, ceding Shangyong (上庸) as a gesture.In 303 BC, the states of Qi, Wei and Han broke off their previous alliance with Chu and invaded Chu, forcing Chu to send its crown prince Xiong Heng to Qin as a hostage in exchange for Qin assistance.