We produce high-purity chemical and metallurgical grade silicon metal and have below advantage to other silicon metal manufacturers. 1.Low P, B content without any additional treatment owe to high quality raw material. Suitable to produce poly-silicon. P ≦ 20ppm, B ≦ 8ppm. ***** quality with SGS ISO 9001 certification as early as 2001. We have 4 sets of 12, 500KVA furnaces whose capacity ensure you a steady composition Silicon metal in one batch. Furthermore, one Xseries ICP-MS was equipped to analyze trace elements to fulfill the special requirement from customers. ***** supply As a key enterprise in Shanghang, we get full support from local government and will never suspend production due to restricted power supply during dry season, which ensure the continuous supply on our products. Grade Si(%) Impurity (%) less than Fe Al Ca P 1515# 99.6% 0.15 0.015 0.004% 2202# 99.5% 0.2 0.2 0.02 0.004% 2203# 99.5% 0.2 0.2 0.03 0.004% 2503# 99.5% 0.2 0.03 0.004% 3103# 99.4% 0.3 0.1 0.03 0.005% 3303# 99.3% 0.3 0.3 0.03 0.005% SIZING: 10~100mm PACKAGING: 1, 000kg (2, 204lb). super sack