SUNGSTONE GROUP CORP. IS A PROFESSIONAL LEADING TRADING GROUP IN CHINA WITH MORE THAN 20 YEARS TRADING EXPERIENCE.OUR MAJOR PRODUCTS ARE SILICA FUME/MICROSILICA/GGBFS/FLYASH AND ALTIB AND MAINLY EXPORT TO MIDDLE EAST, AUSTRALIA , JAPAN AND SOUTH KOREA. THE SIO2 OF SILICA ARE 85%, 90% AND 94%,96% AND EACH ORDER WILL BE TESTED BY SGS TEST BEFORE SHIPMENT. OUR CHINA HEAD OFFICE IS LOCATED IN SHANGHAI. AND WE ALSO HAVE A BRANCH OFFICE IN AUSTRALIA. SHOULD YOU NEED FURTHER DETAILS, PLS DONT HESITATE TO REACH ME AT 0086-13917819125 OR OUR AUSTRALIA NUMBER:0061-425332985.