Kuyambira mu 2019 mpaka 2023, kuchuluka kwapakati pa kukula kwa mphamvu zopangira PVC pachaka kunali 1.95%, ndipo mphamvu zopangira zinawonjezeka kuchoka pa matani 25.08 miliyoni mu 2019 kufika pa matani 27.92 miliyoni mu 2023. Isanafike 2021, kudalira kwa zinthu zochokera kunja nthawi zonse kwakhala pafupifupi 4%, makamaka chifukwa cha mtengo wotsika wa zinthu zakunja komanso kuvutika kusintha zinthu zina zapamwamba.

M'zaka zitatu za 2021-2023, mphamvu zopangira PVC zinawonjezeka, pomwe zinthu zotumizidwa kunja zinawonjezekanso mofulumira, chifukwa zida zina zakunja zinakhudzidwa ndi mphamvu yayikulu, kupezeka kunakhudzidwa, ndipo mtengo sunakhale ndi mwayi wopikisana, ndipo kudalira kutumiza kunja kunatsika kufika pa 2%. Nthawi yomweyo, kuyambira 2021, msika wogulitsa kunja wa PVC ku China wakula mofulumira, ndipo pansi pa phindu la mtengo, wakondedwa ndi India, Southeast Asia ndi mayiko ena, ndipo mkhalidwe wa kutumiza kunja kwa PVC ukukhudza kwambiri msika wamkati. Mphamvu yowonjezereka ya zinthu za ethylene imapanga gawo lalikulu, motero kukulitsa mpikisano pakati pa zinthu za calcium carbide ndi ethylene. Kuchokera pamalingaliro a kugawa kwa madera a mphamvu zatsopano zopangira, mphamvu yatsopano yopanga mu 2023 imayang'ana kwambiri ku Shandong ndi South China.

2023 pachaka mphamvu yopanga malinga ndi kusiyanasiyana kwa njira, makamaka m'mabizinesi a calcium carbide, omwe amawerengera 75.13% ya mphamvu yopanga dziko, chifukwa China ndi dziko lomwe lili ndi malasha ambiri komanso mafuta ochepa, ndipo malasha amagawidwa makamaka kumpoto chakumadzulo, kumpoto chakumadzulo kumadalira malasha olemera, chuma cha calcium carbide, ndipo mabizinesi nthawi zambiri amakhala ndi malo othandizira ophatikizidwa, kotero mphamvu yopanga PVC m'chigawo chakumadzulo ndi yayikulu. North China, East China, South China m'zaka zaposachedwa, mphamvu yatsopano makamaka ndi mphamvu yopanga ethylene, chifukwa cha gombe, mayendedwe osavuta, kutumiza zinthu zopangira ndi mayendedwe.

Malinga ndi madera, dera la kumpoto chakumadzulo likadali pa nambala 1 ndi matani 13.78 miliyoni opanga. Malinga ndi kusintha kwa madera, South China idawonjezera matani 800,000 kuti iwonjezere kusiyana kwa kufunikira kwa malo, pachifukwa ichi, kusamutsa chuma ku North China kupita ku msika wa South China kudachepa, North China idangowonjezera matani 400,000 a zida, ndipo madera ena alibe mphamvu zatsopano. Ponseponse, mu 2023, mphamvu zopangira za South China, North China ndi Northwest China zokha ndi zomwe zidzachuluke, makamaka ku South China, komwe kuwonjezeka kwa mphamvu zopangira kumakhudza kwambiri. Mphamvu zatsopano mu 2024 zidzakhala makamaka ku East China.

2019-2023, mphamvu za makampani a PVC ku China zinapitirira kukula, chifukwa cha kuwonjezeka kwa kupanga pachaka m'zaka zaposachedwa, mphamvu za kupanga PVC m'nyumba zapitirira kukula, 2019-2023 zaka zisanu za kukula kwa mphamvu ya matani 2.84 miliyoni.

Chifukwa cha kusintha kwa kukula kwa mphamvu ku China komanso njira zoperekera ndi kufunikira kwa zinthu kunja, katundu wa panyanja ndi zinthu zina ndi zizindikiro, katundu wochokera ku China watsika mosalekeza, ndipo kudalira katundu wochokera kunja kukuyembekezeka kutsika kufika pa 1.74% mu 2023. Pakapita nthawi, chifukwa cha kuwonjezeka kwa katundu wochokera m'dziko muno, kukhathamiritsa kwa khalidwe la zinthu, kusiyana kwa katundu wochokera m'dziko muno mtsogolo kudzachepa pang'onopang'ono.