Kuyambira 2019 mpaka 2023, kukula kwapakati pachaka kwa PVC kupanga mphamvu kunali 1.95%, ndipo mphamvu yopanga idakwera kuchokera pa matani 25.08 miliyoni mu 2019 mpaka matani 27.92 miliyoni mu 2023. chifukwa cha mtengo wotsika wa magwero akunja komanso kuvutika m'malo mwa zinthu zina zapamwamba.

Pazaka zitatu za 2021-2023, mphamvu yopanga PVC idakula, pomwe zotengera kunja zidakulanso mwachangu, chifukwa zida zina zakunja zidakhudzidwa ndi mphamvu majeure, zoperekera zidakhudzidwa, ndipo mtengo udalibe mwayi wopikisana nawo, ndipo kudalira kwakunja kudatsika. zosakwana 2%. Nthawi yomweyo, kuyambira 2021, msika waku China wa PVC wakula mwachangu, ndipo pansi pamtengo wamtengo wapatali, wayanjidwa ndi India, Southeast Asia ndi mayiko ena, ndipo zinthu zogulitsa kunja za PVC zikuchulukirachulukira pamsika wapanyumba. Kuchuluka kowonjezereka kwa zinthu za ethylene kumapanga gawo lalikulu, motero kumakulitsa mpikisano pakati pa calcium carbide ndi mankhwala a ethylene process. Kutengera kugawa kwa zigawo za mphamvu zatsopano zopangira, mphamvu zatsopano zopangira mu 2023 zimakhazikika ku Shandong ndi South China.

2023 pachaka mphamvu kupanga malinga ndi kusiyanitsa ndondomeko, makamaka anaikira kashiamu carbide mabizinesi, mlandu 75,13% ya mphamvu dziko kupanga, chifukwa China ndi dziko ndi malasha kwambiri ndi mafuta ochepa, ndi malasha makamaka anagawira kumpoto chakumadzulo, ndi kumpoto chakumadzulo amadalira malasha olemera, calcium carbide chuma, ndipo mabizinesi makamaka Integrated zothandizira, kotero mphamvu PVC kupanga kumpoto chakumadzulo ndi lalikulu ndithu. North China, East China, South China m'zaka zaposachedwa, mphamvu zatsopano makamaka ethylene kupanga mphamvu, chifukwa cha m'mphepete mwa nyanja, mayendedwe yabwino, zopangira kuitanitsa ndi mayendedwe.

Malinga ndi dera, dera la kumpoto chakumadzulo likadali loyamba ndi matani 13.78 miliyoni a mphamvu zopanga. Malinga ndi kusintha dera, South China anawonjezera matani 800,000 kuwonjezera m'dera kufunika kusiyana, pa maziko awa, kusamutsa chuma North China ku South China gawo msika wapang'ono, North China kokha anawonjezera ya matani 400,000 zida, ndi madera ena. alibe mphamvu zatsopano. Ponseponse, mu 2023, kokha South China, North China ndi Northwest China mphamvu yopanga idzawonjezeka, makamaka ku South China, kumene kuwonjezeka kwa mphamvu zopanga kumakhudza kwambiri. Mphamvu zatsopano mu 2024 zidzakhala makamaka ku East China.

2019-2023, China ndi PVC makampani mphamvu anapitiriza kukula, motsogozedwa ndi kuwonjezeka pachaka kupanga m'zaka zaposachedwa, zoweta PVC kupanga mphamvu anapitiriza kukula, 2019-2023 zaka zisanu kukula mphamvu matani 2.84 miliyoni.

Chifukwa cha kusintha kwa kukula kwa mphamvu zapakati ku China komanso kapezedwe ndi kafunidwe kunja kwa nyanja, katundu wa m'nyanja ndi zinthu zina ndi zizindikiro, katundu wa China watsika mosalekeza, ndipo kudalira kwa kunja kukuyembekezeka kutsika mpaka 1.74% mu 2023. Kuwonjezeka kwa zinthu zapakhomo, kukhathamiritsa kwa khalidwe la mankhwala, kusiyana kwa tsogolo la zoweta kumayenera kuchepa pang'onopang'ono.