He ʻoihana ʻenehana kiʻekiʻe i hoʻolaʻa ʻia i ka hoʻomohala ʻana i nā kemika maikaʻi ʻoihana, nā lako kūikawā a me nā lawelawe hoʻonā lawelawe i hoʻokumu ʻia ma Changzhou, Jiangsu ma 1998.