fOUNDRY PIG IRON WITH SILICON 1.6% MINIMUM AND LUMP WEIGHT 2-9 kg. FERRO SILICON 72 % WITH AL 1.5% MAXIMUM, HARD COKE WITH 12% ASH MAXIMUM, FERRO MANGANESE 65% MINIMUMWE ARE TRADING COMPANY AND OUR ANNUAL IMPORT FOR PIG IRON IS 30000MT, SILICON 600MT COKE 6000MT, MANGANESE 600MT.