Ahakoa kei te mau tonu te kohu o te mate urutā karauna hou i te tau 2021, kei te piki haere te hoko i te taenga mai o te kōanga. Nā te pikinga ake o te hinu mata, i hua ake he mākete piki i te mākete matū o roto. I taua wā anō, i hua ake hoki he wā kanapa i te mākete aniline. I te mutunga o Poutū-te-rangi, i eke te utu mākete o te aniline ki te 13,500 yuan/tana, ko te taumata teitei rawa atu mai i te tau 2008.

Haunga te taha utu pai, ko te pikinga o te mākete aniline i tēnei wā e tautokona ana hoki e te taha tuku me te tono. Ko te nui o ngā whakaurunga hou i iti iho i ngā tumanakohanga. I taua wā anō, i whakahoutia ngā whakaurunga matua, me te whānui haere o te MDI i raro iho, he kaha te taha tono, ā, i piki ake te mākete aniline. I te mutunga o te hauwhā, i mātao te whakaaro whakapae, i eke te nuinga o ngā taonga ki tōna taumata teitei, ā, kua tata te tīmata anō o te taputapu tiaki aniline, ā, i tahuri te mākete, ka hinga, e whakaarohia ana ka hoki ki te whakaaro tika.

I te mutunga o te tau 2020, ko te kaha whakaputa aniline katoa o tōku whenua he tata ki te 3.38 miriona tana, e 44% o te kaha whakaputa o te ao. Nā te nui rawa o te ahumahi aniline, me ngā here taiao, kua tino whakawhāitihia te kaha whakaputa i ngā tau e rua kua pahure ake nei. Kāore he tāpiritanga hou i te tau 2020, engari nā te tipu o te kaha whakaputa MDI i raro iho, ka ārahi te aniline i tētahi atu whānuitanga i te tau 2021. I whakatūria te tipu hou 100,000-tana o Jiangsu Fuqiang i te marama o Hānuere o tēnei tau, ā, kua whakaritea hoki te tipu hou 540,000-tana o Yantai Wanhua kia whakatūria i tēnei tau. I taua wā anō, kua tīmata te hanganga o te tipu 360,000-tana o Fujian Wanhua, ā, kua whakaritea kia whakahaerehia i te tau 2022. I taua wā, ka eke te kaha whakaputa aniline katoa o Haina ki te 4.3 miriona tana, ā, ka noho ko Wanhua Chemical te kaihanga aniline nui rawa atu o te ao me te kaha whakaputa o te 2 miriona tana.

He whāiti noa iho te whakamahinga o te aniline i raro iho. E 80% o te aniline e whakamahia ana mō te hanga MDI, 15% e whakamahia ana i roto i te umanga tāpiri rapa, ā, ko ētahi atu e whakamahia ana i roto i ngā mara o ngā tae, ngā rongoā me ngā patupatu. E ai ki ngā tatauranga matū ipurangi, mai i te tau 2021 ki te 2023, ka tata ki te 2 miriona tana te pikinga o te kaha whakaputa MDI, ā, ka pau te 1.5 miriona tana o te kaha whakaputa aniline. Ko ngā tāpiri rapa e whakamahia ana i roto i te hanga potae, ā, e hono atu ana ki te mākete motuka. I te wā i muri i te mate urutā, kua hoki mai ngā motuka me ngā potae ki tētahi taumata. E matapaetia ana ka piki ake te hiahia mō ngā tāpiri rapa. Heoi, i te marama o Hepetema 2020, i kīia e te Kotahitanga o Europi ko te aniline he carcinogen kāwai 2 me te teratogen kāwai 2, ā, e taunakihia ana kia whakawhāitihia tōna whakamahinga i roto i ētahi taonga takaro. I taua wā anō, he maha ngā waitohu kakahu kua whakauru i te aniline ki roto i te rārangi matū kua whakawhāitihia i ngā tau tata nei. I te mea ka piki haere ngā hiahia o ngā kaihoko mō te tiaki taiao me te hauora, ka pāngia te wāhanga o raro o te aniline e ētahi here.

Mō te kawemai me te kaweake, he whenua kaweake kupenga ahau mō te aniline. I ngā tau tata nei, ko te nui o te kaweake e 8% o te putanga ā-tau. Heoi, kua heke te nui o te kaweake i ngā tau e rua kua pahure ake nei i ia tau. Haunga te pikinga o te tono ā-rohe, ko te mate urutā hou, ngā taake tāpiri i whakatakotoria e te Hononga o Amerika, me te aukati-tuku a Īnia ngā take matua mō te hekenga o ngā kaweake aniline. E whakaatu ana ngā raraunga tikanga tāke ko ngā kaweake i te tau 2020 ka 158,000 tana, he hekenga tau-ki-te-tau o te 21%. Ko ngā whenua kaweake matua ko Hanekari, Īnia me Pāniora. Kei a Wanhua Bosu he taputapu MDI i Hanekari, ā, he tono mō te aniline ā-rohe. Heoi, kei te whakamahere te wheketere Bosu ki te whakawhānui ake i te kaha o te aniline i tēnei tau, ā, ka heke haere te nui o te kaweake aniline ā-rohe i taua wā.

I te nuinga o te wā, ko te pikinga tere o te mākete aniline i ahu mai i ngā painga maha e pā ana ki te utu me te tuku me te tono. I roto i te wā poto, kua tino piki te mākete, ā, kei te tūpono te heke i ngā wā katoa; i roto i te wā roa, ka tautokona te heke e te tono nui mō te MDI, ka noho pai te mākete i roto i ngā tau 1-2 e whai ake nei. Heoi, me te kaha ake o te tiaki taiao ā-rohe me te otinga o te whakaurunga o te aniline-MDI, ka whakawhāitihia te wāhi noho o ētahi wheketere, ā, e matapaetia ana ka piki ake te kukū o ngā ahumahi.