We can supply the first class humic acid produced in several big factories, please contact us if any needs. Composition: 1) Humic acid na Humic acid:55%min Phindex:8.5-9-11 Moisture:17%min Size:60-80mesh 2)Humic acid Humic acid:60min Exchanging capactty meq/g:2.0%min Moisture:17%max Other content(fe. Mnetc):2.0%min Size:60-80mesh or 1-3mm 3)Humic acid Humic acid:70min Exchanging capactty meq/g:2.0%min Moisture:17%max Other content(fe. Mnetc):2.0%min Size:60-80mesh or 2-4mm 4)Nitro-humic acid Humic acid:70min Exchanging capactty meq/g:3.5%min Moisture:17%max Other content(fe. Mnetc):2.0%min Size:60-80mesh or 2-4mm