Okwangoku, ioyile ekrwada yavalwa ngenxa yokwethuka yaza yehla, imakethi yaseMpuma China yehla yaya kuluhlu oluncinci, ukwanda kwe-bid-ask kwanda, kwaye imakethi yaseMzantsi China yehla yaya kuluhlu oluncinci. Ngaphandle kweLiaotong Petrochemical, iikowuteshini zezinye iifektri zokucoca bezizinzile okwethutyana. Nangona i-OPEC igqibe ekubeni yonyuse imveliso kancinci, ii-inventri zeoyile ekrwada kunye nepetroli zase-US zanda, imfuno ixhalabile ngamaxabiso eoyile, kwaye ukomelela kwezinga lokutshintshiselana ngedola yaseMelika kuthintele imakethi yeoyile yexesha elizayo equka idola yaseMelika. Amaxabiso eoyile yamazwe ngamazwe avaliwe; Ngokuyintloko, intengiselwano yomrhwebi ayilunganga, intengiselwano yokwenyani ibuthathaka, kwaye akukho kunyuswa kwe-toluene. Ngokubanzi, inkxaso elungileyo incinci, kwaye imakethi yangoku ye-toluene iwele kuluhlu oluncinci.