Ngomhla we-2 kaNovemba, i-Ofisi Jikelele yoMphathiswa we-Ecology kunye nokusiNgqongileyo yakhupha "Isaziso sokuShicilela kunye nokusabalalisa "Uluhlu oluBanzi loKhuseleko lweNdalo (uHlelo luka-2021)" (i-Environmental Office Comprehensive Letter [2021] No. 495).Kulu “Luhlu oluBanzi loKhuseleko lokusiNgqongileyo (Ushicilelo lwe-2021)”, i-charcoal/coke/pitch eluhlaza okwesibhakabhaka (ngaphandle kwe-tar distillation esebenzisa i-atmospheric, i-vacuum okanye i-atmospheric kunye ne-vacuum eqhubekayo ye-distillation iinkqubo) kwi-coking (ikhowudi yoshishino 2520) kwintsimbi yendabuko kunye nentsimbi. ishishini, intsimbi Rolled (ikhowudi kushishino 3130) chromium-ecwecwe steel sheet (ngaphandle trivalent chromium electroplating inkqubo)/ipleyiti ecatyiswe ngombala (ngaphandle chromium-free inkqubo yokwambathisa umbala) iimveliso, ukunyibilika ferroalloy (ikhowudi kushishino 3150) manganese yesinyithi/isilicon yesinyithi/ iimveliso ze-chromium zensimbi , Uluhlu lweemveliso eziveliswa yinkqubo ye-galvanizing ye-hot-dip kwintsimbi (ikhowudi yoshishino 3208) "yimveliso engcolisa kakhulu";i-iron-making (ikhowudi ye-industry 3210) kunye ne-steel-making (ikhowudi ye-industry 3220) iimveliso azihlelwanga ngokuthi "zingcolise kakhulu" kunye "nomngcipheko ophezulu wokusingqongileyo" "imveliso.