Tsis ntev los no, tus nqi ntawm cov khoom siv tshuaj tau nce: Muaj ntau ntau yam thiab ntau yam loj. Lub Yim Hli, cov nqi ntawm cov khoom siv tshuaj tau pib nce. Ntawm 248 cov khoom siv tshuaj lom neeg tus nqi peb tau taug qab, 165 cov khoom lag luam tau nce hauv tus nqi nrog qhov nruab nrab nce ntawm 29.0%, thiab tsuas yog 51 cov khoom poob rau hauv nqe nrog qhov nruab nrab txo qis ntawm 9.2%. Ntawm lawv, cov nqi ntawm ntshiab MDI, butadiene, PC, DMF, styrene thiab lwm yam khoom tau nce sharply.

Qhov kev thov rau cov khoom siv tshuaj feem ntau muaj ob lub caij nyoog siab tshaj plaws, uas yog lub Peb Hlis-Plaub Hlis tom qab Lub Caij Nplooj Ntoos Hlav thiab Lub Cuaj Hli-Lub Kaum Hli nyob rau ib nrab xyoo ntawm lub xyoo. Cov ntaub ntawv keeb kwm ntawm Tuam Tshoj Chemical Product Price Index (CCPI) los ntawm 2012 txog 2020 kuj txheeb xyuas txoj cai ntawm kev ua haujlwm ntawm kev lag luam no. Thiab zoo li lub xyoo no, cov khoom lag luam tau nce ntxiv txij li lub Yim Hli, thiab nkag mus rau ib xyoo tsis txaus siab rau lub Kaum Ib Hlis, tsuas yog xyoo 2016 thiab 2017 uas tau tsav los ntawm kev hloov pauv ntawm cov khoom siv.

Cov nqi roj Crude ua lub luag haujlwm tseem ceeb hauv tus nqi ntawm cov khoom siv tshuaj. Feem ntau, cov nqi ntawm cov khoom siv tshuaj feem ntau nce thiab poob raws li qhov kev hloov pauv ntawm cov nqi roj av. Txawm li cas los xij, nyob rau hauv tus txheej txheem ntawm kev nce nqi ntawm cov khoom siv tshuaj, cov nqi roj av tseem nyob twj ywm tsis hloov pauv, thiab cov nqi roj av tam sim no tseem qis dua cov nqi thaum lub Yim Hli. Saib rov qab rau 9 xyoo dhau los, tus nqi ntawm cov khoom siv tshuaj thiab cov roj crude tau sib txawv tsuas yog 5 zaug xwb, feem ntau nyob rau lub sijhawm ncov lossis hauv qab poob siab, thiab cov nqi ntawm cov roj crude tau nce thaum cov nqi ntawm cov khoom siv tshuaj tau nyob twj ywm. los yog nqis. Tsuas yog xyoo no yog tus nqi ntawm cov khoom siv tshuaj lom neeg nce siab, thaum tus nqi ntawm cov roj crude hloov pauv. Nyob rau hauv cov xwm txheej zoo li no, kev nce hauv cov khoom siv tshuaj lom neeg feem ntau tau nce cov txiaj ntsig ntawm cov tuam txhab cuam tshuam.

Cov tuam txhab tshuaj feem ntau yog ib qho ntawm cov kev sib txuas hauv cov saw hlau, thiab feem ntau ntawm lawv cov dej ntws los yog cov neeg siv khoom kuj yog cov tuam txhab tshuaj. Yog li ntawd, thaum cov khoom lag luam tus nqi ntawm kev lag luam A nce, tus nqi ntawm kev lag luam B, uas yog kev lag luam downstream, kuj yuav nce ntxiv. Tau ntsib nrog qhov xwm txheej no, tuam txhab B txiav kev tsim khoom lossis ncua kev tsim khoom kom txo qis kev yuav khoom, lossis nce tus nqi ntawm nws tus kheej cov khoom kom hloov qhov siab ntawm cov nqi nce. Yog li ntawd, txawm tias tus nqi ntawm cov khoom lag luam qis tuaj yeem nce siab yog lub hauv paus tseem ceeb rau kev txiav txim siab kev ruaj khov ntawm tus nqi nce ntawm cov khoom siv tshuaj. Tam sim no, nyob rau hauv ntau yam kev lag luam chains, tus nqi ntawm cov khoom siv tshuaj tau pib kis tau zoo.

Piv txwv li, tus nqi ntawm bisphenol A drives tus nqi ntawm PC, silicon hlau drives tus nqi ntawm cov organic silicon, uas tsav tus nqi ntawm cov roj hmab tebchaw thiab lwm yam khoom, tus nqi ntawm adipic acid drives tus nqi ntawm slurry thiab PA66, thiab lub tus nqi ntshiab MDI thiab PTMEG tsav tus nqi ntawm spandex.

Ntawm 248 cov khoom siv tshuaj lom neeg tus nqi peb tau taug qab, 116 cov khoom lag luam tus nqi tseem qis dua tus nqi ua ntej muaj kev sib kis; piv nrog rau tib lub sijhawm xyoo tas los, 125 cov khoom lag luam tus nqi qis dua tib lub sijhawm xyoo tas los. Peb siv tus nqi nruab nrab ntawm cov khoom nyob rau hauv 2016-2019 raws li tus nqi nruab nrab, thiab 140 tus nqi khoom tseem qis dua tus nqi nruab nrab. Nyob rau tib lub sijhawm, ntawm 54 cov khoom siv tshuaj sib kis uas peb tau taug qab, 21 qhov kev sib kis tseem qis dua qhov kev sib kis ua ntej muaj kev sib kis; yog tias piv rau tib lub sijhawm xyoo tas los, 22 cov khoom sib kis tau qis dua li tib lub sijhawm xyoo tas los. Peb siv 2016-2019 qhov nruab nrab cov khoom sib kis raws li kev sib kis hauv nruab nrab, thiab 27 cov khoom sib kis tseem qis dua qhov nruab nrab kis. Qhov no zoo ib yam nrog PPI cov ntaub ntawv xyoo-rau-xyoo thiab lub nplhaib-on-quarter cov ntaub ntawv.