RDE Trade is a professional Silicon Metal supplier. We provide high quality and competitive price Silicon Metal on grades 553 441 3303 2202 Specification as per below: Spec. Si( % Min) Fe( % Max) Al( % Max) Ca( % Max) P( PPM) 2202 99 0.2 0.2 0.02 40 3303 99 0.3 0.3 0.03 40 441 99 0.4 0.4 0.1 40-100 553 98.5 0.5 0.5 0.3 4 0-100 Please do not hesitate to contact us if you have any inquiry : Jessica( at) rdetrade( dot) com