Nickel-containing scrap, including nickel content of stainless-steel scrap: Canada, 37%; Mexico, 26%; United Kingdom, 9%; and other, 28%. Tariff: Item Number Normal Trade Relations 12–31–21 Nickel ores and concentrates, nickel content 2604.00.0040 Free. Ferronickel 7202.60.0000 Free. Unwrought nickel, not alloyed 7502.10.0000 Free.