Qingdao Sainuo anakhazikitsidwa mu 2005, ndi mabuku apamwamba chatekinoloje ogwira kaphatikizidwe kupanga, kafukufuku wa sayansi, ntchito ndi malonda.Kuyambira pa msonkhano woyamba ndi mankhwala, pang'onopang'ono wakula kukhala mafuta athunthu ndi kubalalitsidwa dongosolo mankhwala katundu ku China ndi pafupifupi 100 mitundu ya mankhwala, kusangalala ndi mbiri mkulu m'munda wa mafuta ndi kubalalitsidwa ku China.Pakati pawo, kuchuluka kwazinthu zopanga komanso kuchuluka kwa malonda a sera ya polyethylene ndi EBS zili pamwamba pamakampani.