Dear Sir Madam,we want to buy tapioca starch, food gradespecification: - starch: 85% min.- mosture: 13% max. - ash: 0.2% max - ph: 5-7 - so2 : max 30ppmin 50kgs bagPlease write to us on email.for details. thanks.industrial service & trade div.Tianjin International Machinery Co., Ltd. (Group)Add: 180 Hanghai Road, Tianjin Airport Economic Area, 300300, China