February 3, Beijing area feed grade vitamin A prices remain at near 115 yuan / kg, feed grade vitamin E (tocopherol) prices in the vicinity of 50 / kg, the price low. Vitamin A commodity index February 2 to 94.86, the highest point in the cycle compared with 136.24 points (2014-06-08) dropped by 30.37%, compared with March 10, 2013 the lowest point of 88.79 points, up 6.84 percent.Sulfamic acid
