Mai ka makahiki 2004 a hiki i kēia manawa, i nā makahiki 9 i hala iho nei, ua ʻike au i ka piʻi ʻana o nā kumukūʻai mai ka C5 maka i nā huahana resin. I kēlā manawa, he 3,600 yuan/ton ke kalapona ʻelima, Petroleum Resin petroleum resin he 8,000 yuan/ton, Petroleum Resin a ʻo ke kumu kūʻai o nā huahana i hoʻopau ʻia he pālua ke kumu kūʻai o nā mea maka. I kēlā manawa, ʻaʻole lawa ka ʻike kūloko o ka petroleum resin, Petroleum Resin no ka mea ua hoʻohana ka hapa nui o nā mea hoʻohana i ka rosin. ʻAʻole hiki i ka wā ma hope ua loaʻa ka rosin i nā pōʻino o ka wā a ua hoʻonui ʻia ka hana o ka rosin. Ua ʻae ʻia nā resins Petroleum i ka mākeke honua. Ua ho'āʻo mālie kekahi poʻe ma Kina e hoʻololi i ka rosin me ka petroleum resins ma kahi hapa a i ʻole. ʻOi aku ka maikaʻi ma mua o ka rosin.
I ka hapaha ʻehā o ka makahiki 2011, ua emi iho nā kumukūʻai o ka rosin a me ka petroleum resin. Ua hāʻule ʻo Rosin ma lalo o 10,000 yuan, Petroleum Resin kahi hāʻule ma mua o 50%. ʻO ke kumu kūʻai nui o ka petroleum resin he 11,800 yuan/ton. Eia nō naʻe, ʻo Petroleum Resin ke kumu kūʻai o kēia manawa o C5 mau mea waiwai i ke kumu kūʻai kiʻekiʻe o 8,000 yuan/ton. ʻO ke kumukūʻai huahana ʻO ke kumu kūʻai kumu he 1.5 mau manawa. E noiʻi i nā kumu o ka emi ʻana: 1. E hoʻonui i ka hana rosin i ka makahiki 2011. 2. ʻO ka pilikia ʻaiʻē ʻEulopa. Noho ʻo Export i ke kūlana kūʻai alakaʻi o ka rosin. ʻO ka hoʻokuʻu makahiki o ka rosin a me ka rosin resin i nā ʻāina i kūkulu ʻia ma ʻEulopa a me ʻAmelika hiki i kahi 370,000 tons. ʻO ka ʻaiʻē ʻEulopa ke alakaʻi pololei nei i kahi hōʻemi nui o ka rosin i lawe ʻia aku i ʻEulopa a me ʻAmelika Hui Pū ʻIa.
I ka pōʻaiapili o ke kumukūʻai aila honua o kēia manawa, ʻaʻole hiki ke hāʻule ka C5 raw material, Petroleum Resin e hoʻonoho nei i ke kumukūʻai piha o ka resin petroleum. Inā emi ke kumu kūʻai o ka petroleum resin ma mua o 11,000 yuan / ton, ʻo Petroleum Resin ka ʻoihana kokoke i ka make. Pela no ka rosin. Wahi a nā kumu mai ka ʻoihana ulu lāʻau ʻo Guangdong, ʻo nā kumukūʻai o ka rosin e pili ana: ka hoʻolimalima lāʻau, ka ʻohi resin, ka rosin i ka ukana hale hana, Petroleum Resin me ka hoʻokele a me ka poho, a ua komo ke kumukūʻai o rosin i ke au o 10,000 yuan. I nā huaʻōlelo ʻē aʻe, ʻo Petroleum Resin inā ʻoi aku ke kumukūʻai o ka rosin ma mua o 10,000 yuan, e nalowale ana ka ʻoihana. I kēia lā, ʻike ʻia ka pilina ma waena o ka rosin a me ka petroleum resin e ka hapa nui o nā ʻoihana o lalo, ʻo Petroleum Resin a me ka hāʻawi ʻana a me nā kumukūʻai koi o nā mea ʻelua e pili ana kekahi i kekahi.
