Hoʻokumu ʻia i ka makahiki 1998, ua hōʻiliʻili ʻo Xinnuo i ka ʻike waiwai i ka hana ʻana i ka mīkini ʻōwili metala.ʻOi aku ma mua o 20 mau makahiki o ka hoʻomohala ʻana ua hana ʻo Xinnuo i ka mea hoʻolako lako ʻōwili ikaika loa ma Northern China.Aia mākou i kēia manawa e ʻoi aku ma mua o 200 poʻe.ʻO nā ʻāpana hana ʻelua ma Xinnuo he 50 tausani m2.Ua hoʻokumu mākou i 5 mau papa hana nui, me nā mea kanu no ka hana ʻana i nā ʻāpana ʻāpana, ka mīkini wiliwili, ka hui ʻana a me ka mālama ʻana i ka ʻili.