Biochemical Fulvic acid (Type A)
Character: Dark brown powder, PH: 4-7
Main ingredient: Fulvic acid≥95%，insoluble matter≤3%

Biochemical Fulvic acid (Type B)
Character: Dark brown Powder，PH:4-8
Main ingredient: Fulvic acid≥90%，insoluble matter≤3%

Biochemical Fulvic acid (Type C)
Character: Pale Yellow Powder，PH:4-7
Main ingredient: Fulvic acid≥70%, insoluble matter≤3%,

Biochemical Fulvic acid (Type F)
Character: Biochemical Fulvic acid with high potassium，Dark brown Powder，PH:5-7
Main ingredient: Fulvic acid≥60%，Biological K≥12%，Biological N≥2%，Moisture≤6%，insoluble matter≤3%