Tan iyo bilowgii 2020, cudurka faafa ee taajka cusub ayaa ku faafay adduunka oo dhan wuxuuna saameyn ku yeeshay warshadaha PCB ee adduunka. Shiinaha ayaa falanqeynaya xogta mugga dhoofinta bilaha ah ee PCB-ga Shiinaha ee uu sii daayay Maamulka Guud ee Kastamka. Laga soo bilaabo Maarso ilaa Noofambar 2020, mugga dhoofinta PCB ee Shiinaha ayaa gaadhay 28 bilyan oo dhejis ah, koror sannad-sannadka ah oo ah 10.20%, rikoorka ugu sarreeya tobankii sano ee la soo dhaafay.

Waxaa ka mid ah, laga bilaabo Maarso ilaa Abriil 2020, dhoofinta PCB ee Shiinaha si aad ah ayey u kordheen, ilaa 13.06% iyo 21.56% sannad kasta. Sababaha falanqaynta: iyada oo la raacayo saamaynta faafitaanka horraantii 2020, heerka shaqada ee warshadaha PCB ee Shiinaha ee dhul weynaha Shiinaha, dib u soo dejinta ka dib dib u bilaabista shaqada, iyo dib u soo celinta warshadaha dibadda.

Laga soo bilaabo Juulaay ilaa Noofambar 2020, dhoofinta PCB ee Shiinaha ayaa si aad ah u kordhay sanadba sanadka ka dambeeya, gaar ahaan Oktoobar, taas oo kor u kacday 35.79% sanadka. Tan waxaa laga yaabaa in badi ay sabab u tahay soo kabashada warshadaha hoose iyo kororka baahida warshadaha PCB ee dibadda. Marka loo eego faafitaanka, awoodda sahayda ee warshadaha PCB ee dibedda waa mid deggan. Shirkadaha Shiinaha ee Mainland waxay fuliyaan amarada wareejinta dibadda.

Marka loo eego xogta Prismark, laga bilaabo 2016 ilaa 2021, heerka kobaca qiimaha wax soo saarka qayb kasta oo ka mid ah warshadaha PCB Shiinaha ayaa ka sarreeya celceliska caalamiga ah, gaar ahaan waxyaabaha tignoolajiyada sare leh sida looxyada lakabka sare, guddiyada HDI, guddiyada dabacsan iyo substrates baakadaha. PCB. Qaado tusaale ahaan substrate-ka baakadaha. Laga soo bilaabo 2016 ilaa 2021, qiimaha wax soo saarka substrate-ka ee dalkayga waxa la filayaa inuu ku koco heerka kobaca sanadlaha ah ee ku dhawaad ​​3.55%, halka celceliska caalamiga ahi uu yahay 0.14% oo kaliya. Isbeddelka wareejinta warshaduhu waa cad yahay. Faafida ayaa la filayaa in ay dardargeliso wareejinta warshadaha PCB ee Shiinaha, iyo wareejinta Waa geedi socod joogto ah.