Qingdao Sainuo yashinzwe mu 2005, ni ikigo cy’ikoranabuhanga ryuzuye gihuza umusaruro, ubushakashatsi bwa siyansi, gushyira mu bikorwa no kugurisha.Kuva mu mahugurwa ya mbere n'ibicuruzwa, yagiye ikura buhoro buhoro itanga ibikoresho byuzuye byo gusiga no gukwirakwiza ibicuruzwa mu Bushinwa hamwe n'ibicuruzwa bigera ku 100, bizwi cyane mu bijyanye no gusiga no gukwirakwiza mu Bushinwa.Muri byo, igipimo cy’umusaruro n’ubucuruzi bw’ibishashara bya polyethylene na EBS biza ku isonga mu nganda.