1.Kuthekera kwakukulu kotulutsa kwa ntchito yosasokoneza.
2.Mapangidwe osavuta, mafupipafupi osweka, ndalama zotsika mtengo, zosavuta komanso zokhazikika.
3.Kusinthasintha kwakukulu, koyenera kuchotsera ufa, tinthu tating'onoting'ono, tating'onoting'ono, ndi zinthu zolimba, zokhala ndi mphamvu zosinthira, zomwe zimathandizira kusintha kwakukulu pazotulutsa popanda kukhudza kuchita bwino kwa malonda.
4.Zovuta kuti muzimutsuka.
1. Makampani opanga mankhwala: sulfuric acid, caustic soda, ammonium sulfate, nitric acid, urea, oxalic acid, potassium dichromate, polyvinyl chloride, feteleza wa nitrate phosphate, feteleza wa calcium magnesium phosphate, feteleza wapawiri.
2. Makampani a zakudya: shuga, mchere, shuga, vitamini maltose, shuga granulated
3. Migodi mankhwala: bentonite, maganizo, malasha, manganese ore, pyrite, miyala yamchere, peat
4. Zina: ufa wachitsulo, soya, zinyalala, machesi, utuchi, njere za distiller