XSI

Silicon, silica, silicones and polysilicones in rolls, bars, billets, ingots, granules, sized particles and powder, for use by foundries and for use in the manufacture of steel and aluminum products

silicon metal, speciality silicon metal, ferrosilicon and specialty ferrosilicon in rolls, bars, billets, ingots, granules, sized particles and powder, for use by foundries and for use in the manufacture of steel and aluminum products