Kuchokera ku 2004 mpaka pano, m'zaka zapitazi za 9, Petroleum Resin Ndawona kusinthasintha kwa mitengo kuchokera ku C5 zopangira mafuta kupita ku mafuta a petroleum resin. Panthawiyo, zopangira kaboni zisanu zinali 3,600 yuan/ton, Petroleum Resin petroleum resin inali 8,000 yuan/tani, Petroleum Resin ndipo mtengo wa zinthu zomalizidwa unali kuwirikiza kawiri mtengo wa zopangira. Panthawiyo, Petroleum Resin m'nyumba kumvetsetsa kwa utomoni wa petroleum sikunali kokwanira, Petroleum Resin chifukwa ogwiritsa ntchito ambiri anali atazolowera kugwiritsa ntchito rosin. Sipanapite nthawi kuti rosin anavutika ndi masoka a nyengo ndipo kupanga rosin kunakula. Mafuta a petroleum anali ovomerezeka kwambiri pamsika wapadziko lonse. Anthu ena ku China pang'onopang'ono anayesa kusintha rosin ndi utomoni wa petroleum pang'ono kapena kwathunthu. Zabwino kuposa rosin.
Mu kotala yachinayi ya 2011, Petroleum Resin mitengo ya rosin ndi petroleum resin idatsika. Rosin wagwa pansi pa 10,000 yuan, Petroleum Resin dontho loposa 50%. Mtengo waukulu wa petroleum resin ndi 11,800 yuan/ton. Komabe, Petroleum Resin mtengo waposachedwa wa C5 zopangira umakhalabe pamtengo wokwera wa 8,000 yuan/ton. Mtengo wogulitsa ndi Mtengo wazinthu zopangira ndi nthawi 1.5. Fufuzani zifukwa zomwe zachepetsera: 1. Kuchulukitsa kupanga rosin mu 2011. 2. Mavuto a ngongole ku Ulaya. Export ili pamalo otsogola ogulitsa a rosin. Kutumiza kwapachaka kwa rosin ndi rosin resin kumayiko otukuka ku Europe ndi America kumafika pafupifupi matani 370,000. Ngongole ya ku Europe mwachindunji imabweretsa kuchepa kwakukulu kwa rosin yotumizidwa ku Europe ndi United States.
Potengera mtengo wamafuta wapadziko lonse lapansi, ndizosatheka kuti C5 yaiwisi igwe,Petroleum Resin yomwe imayika mtengo wokwanira wa utomoni wa petroleum. Ngati mtengo wa petroleum resin ndi wochepera 11,000 yuan/tani, Petroleum Resin bizinesiyo ili pafupi kutayika. N'chimodzimodzinso ndi rosin. Malinga ndi magwero ochokera kumakampani a nkhalango ku Guangdong, mitengo yopangira rosin imaphatikizapo: lendi yamitengo, kuchotsa utomoni, rosin kupita ku katundu wafakitale,Petroleum Resin kuphatikiza kasamalidwe ndi kutayika, ndipo mtengo wa rosin walowa mu nthawi ya 10,000 yuan. Mwanjira ina, Petroleum Resin ngati mtengo wa rosin ndi wochepera 10,000 yuan, bizinesiyo imataya ndalama. Masiku ano, ubale wolowa m'malo pakati pa rosin ndi petroleum resin umadziwika bwino ndi mafakitale ambiri akumunsi, Petroleum Resin ndi mitengo yoperekera ndi kufunikira kwa awiriwa ndi ogwirizana.
