1.Ubushobozi bwimbaraga zisohoka kumikorere idahagarara.
2.Urwego rutagoranye, inshuro nkeya yo gusenyuka, amafaranga yo kubungabunga make ahendutse, imikorere yoroshye kandi ihamye.
3.Umuhanda uhindagurika, ukwiranye no gukuramo ifu, uduce, ibice, nibikoresho bikomeye, hamwe nubushobozi bukomeye bwo guhuza n'imikorere, bigahindura byinshi mubisohoka bitagize ingaruka kubicuruzwa byiza.
4.Ni ngombwa koza.
1. Inganda zikora imiti: aside sulfurike, soda ya caustic, sulfate ya amonium, aside nitric, urea, aside oxyde, potasiyumu dichromate, polyvinyl chloride, ifumbire ya nitrate, ifumbire ya calcium magnesium fosifate, ifumbire mvaruganda.
2. Inganda zibiribwa: glucose, umunyu, isukari, vitamine maltose, isukari isukuye
3. Ibicuruzwa bicukura amabuye y'agaciro: bentonite, kwibanda, amakara, ubutare bwa manganese, pyrite, hekeste, ifu
4. Abandi: ifu y'icyuma, soya, imyanda yangiza, imipira, ibiti, ibinyampeke