Ash content of fermenting soymilk ranged from 0.23 – 0.74%. The ash content increased as fermentation period increased. The higher ash content of fermenting soymilk compared with the unfermented soymilk could be due to reduction of certain chemical components such as carbohydrate, moisture and fat as reported earlier in this study. Soymilk is rich in minerals such as calcium, iron, magnesium and zinc. The value of calcium, iron, magnesium and zinc contents in the fermenting soymilk ranged from 52.86 to 65.00, 28.00 to 28.00, 7.66 to 7.83 and 4.42 to 6.75 mg/l respectively. The calcium, iron and magnesium contents in soymilk increased with increase in natural fermentation period up to 54 h and then decreased to 72 h (Table 2). The zinc contents in soymilk increased sharply from the beginning until they reached a constant value at 42 h (6.28 mg/l) and then increased till