Kutshanje, ixabiso leemveliso zeekhemikhali linyukile: Kukho iintlobo ngeentlobo kunye noluhlu olukhulu. Ngo-Agasti, amaxabiso eemveliso zeekhemikhali aqalile ukunyuka. Phakathi kwamaxabiso eemveliso zeekhemikhali ezingama-248 esiwalandelele, iimveliso ezili-165 zinyukile ngexabiso eliphakathi kokunyuka kwe-29.0%, kwaye ziimveliso ezingama-51 kuphela eziwile ngexabiso eliphakathi kokwehla kwe-9.2%. Phakathi kwazo, amaxabiso e-MDI ecocekileyo, i-butadiene, i-PC, i-DMF, i-styrene kunye nezinye iimveliso anyukile kakhulu.

Imfuno yeemveliso zeekhemikhali idla ngokuba namaxesha amabini aphezulu onyaka, oko kukuthi uMatshi-uEpreli emva koMnyhadala weNtwasahlobo kunye noSeptemba-uOkthobha kwisiqingatha sesibini sonyaka. Idatha yembali ye-China Chemical Product Price Index (CCPI) ukusuka ngo-2012 ukuya ku-2020 ikwaqinisekisa umthetho wokusebenza kweli shishini. Kwaye njengalo nyaka, amaxabiso emveliso aqhubekile nokunyuka ukusukela ngo-Agasti, kwaye angene kunyaka womdla onganciphiyo ngoNovemba, kuphela ngo-2016 nango-2017 oqhutywa lutshintsho kwicala lokubonelela.

Amaxabiso eoyile ekrwada adlala indima ebalulekileyo kumaxabiso eemveliso zeekhemikhali. Ngokubanzi, amaxabiso eemveliso zeekhemikhali ahlala enyuka aze ehle ngokuhambelana nokuguquguquka kwamaxabiso eoyile ekrwada. Nangona kunjalo, kwinkqubo yokunyuka kwamaxabiso eemveliso zeekhemikhali, amaxabiso eoyile ekrwada ahlala eguquguquka, kwaye amaxabiso eoyile ekrwada angoku asephantsi kunamaxabiso okuqala kuka-Agasti. Xa sijonga emva kwiminyaka eli-9 edlulileyo, ixabiso leemveliso zeekhemikhali kunye neoyile ekrwada liye laguquka kakhulu izihlandlo ezi-5 kuphela, rhoqo kwixesha lokuphazamiseka okukhulu okanye eliphantsi, kwaye amaxabiso eoyile ekrwada anyuke ngelixa amaxabiso eemveliso zeekhemikhali ehlala ethe tyaba okanye ehla. Kuphela kulo nyaka apho ixabiso leemveliso zeekhemikhali linyuka kakhulu, ngelixa ixabiso leoyile ekrwada litshintshatshintsha. Phantsi kweemeko ezinjalo, ukunyuka kwamaxabiso eemveliso zeekhemikhali kuye kwandisa kakhulu inzuzo yeenkampani ezinxulumene nazo.

Iinkampani zeekhemikhali zihlala ziphakathi kweekhonkco kwikhonkco lemizi-mveliso, kwaye uninzi lwabathengi bazo abaphezulu okanye abaphezulu nabo ziinkampani zeekhemikhali. Ke ngoko, xa ixabiso lemveliso yeshishini A linyuka, ixabiso leshishini B, elishishini elisezantsi, nalo liya kunyuka. Ijongene nale meko, inkampani B inciphisa imveliso okanye iyimise imveliso ukuze inciphise ukuthengwa, okanye inyuse ixabiso leemveliso zayo ukuze itshintshe uxinzelelo lweendleko ezikhulayo. Ke ngoko, ukuba ixabiso leemveliso ezisezantsi linokunyuka na sisiseko esibalulekileyo sokugweba uzinzo lokunyuka kwamaxabiso eemveliso zeekhemikhali. Okwangoku, kwiikhonkco ezininzi zoshishino, ixabiso leemveliso zeekhemikhali liqalile ukusasazeka kakuhle.

Umzekelo, ixabiso le-bisphenol A linyusa ixabiso le-PC, i-silicon metal inyusa ixabiso le-organic silicon, nto leyo eqhuba ixabiso lee-rubber compounds kunye nezinye iimveliso, ixabiso le-adipic acid liqhuba ixabiso le-slurry kunye ne-PA66, kwaye ixabiso le-pure MDI kunye ne-PTMEG liqhuba ixabiso le-spandex.

Phakathi kwamaxabiso eemveliso zeekhemikhali ezingama-248 esizilandeleleyo, amaxabiso eemveliso ali-116 ayesaphantsi kunexabiso langaphambi kobhubhane; xa kuthelekiswa nexesha elifanayo kunyaka ophelileyo, amaxabiso eemveliso ali-125 ayesaphantsi kunexesha elifanayo kunyaka ophelileyo. Sisebenzisa ixabiso eliqhelekileyo leemveliso ngo-2016-2019 njengexabiso eliphakathi, kwaye amaxabiso eemveliso ali-140 asesaphantsi kunexabiso eliphakathi. Kwangaxeshanye, phakathi kwamaxabiso eemveliso zeekhemikhali angama-54 esiwalandeleleyo, ukusasazwa kwama-21 kusesezantsi kunokusasazwa kwangaphambi kobhubhane; ukuba kuthelekiswa nexesha elifanayo kunyaka ophelileyo, ukusasazwa kwemveliso engama-22 kusezantsi kunexesha elifanayo kunyaka ophelileyo. Sisebenzisa ukusasazwa kwemveliso okuphakathi kuka-2016-2019 njengokusasazwa kwemveliso okuphakathi, kwaye ukusasazwa kwemveliso engama-27 kusesezantsi kunokusasazwa kwemveliso okuphakathi. Oku kuhambelana neziphumo zedatha ze-PPI zonyaka nonyaka kunye nekota nganye.