Musi waMbudzi 2, General Hofisi yeBazi reEcology uye Zvakatipoteredza yakabudisa "Chiziviso pamusoro peKudhinda uye Kugovera "Runyorwa Rwakakwana rwekuchengetedzwa kweNzvimbo (2021 Edition)" (Environmental Office Comprehensive Letter [2021] No. 495).Mu "Comprehensive Rondedzero Yekuchengetedzwa Kwemamiriro ekunze (2021 Edition)", marasha ebhuruu / coke / pitch (kunze kwekunatsa tara uchishandisa mhepo, vacuum kana mhepo uye vacuum inoenderera mberi distillation maitiro) mukubika (indasitiri kodhi 2520) mune yechinyakare simbi nesimbi. indasitiri, simbi Yakakungurutswa (industry kodhi 3130) chromium-plated simbi sheet (kunze kwe trivalent chromium electroplating process)/color-coated plate (kunze kwechromium-isina color coating process) zvigadzirwa, ferroalloy kunyungudika (industry code 3150) metal manganese/simbi nesilicon/ metal chromium products , Nhepfenyuro yezvigadzirwa zvinogadzirwa ne-hot-dip galvanizing process musimbi (industry code 3208) "zvakanyanya kusvibisa" zvigadzirwa;iron-making (industry code 3210) uye kugadzira simbi (industry code 3220) zvigadzirwa hazvina kurongeka se "zvakanyanya kusvibisa" uye "yakanyanya njodzi yezvakatipoteredza" "chigadzirwa.