July 29 tungsten concentrate commodity index was 93.07, unchanged from yesterday, the highest point over period 100.00 points (2011-09-12) fell by 6.93%, compared to October 19, 2012 the lowest point of 69.48 points, up 33.95% . (Note: The cycle refers to the date 2011-09-01) tungsten concentrate commodity index since 2012-10-19, the 284 days in succession up 33.952%.