The tariff applies to some Vietnamese exports of cold-rolled steel sheets, although if the groups can prove the steel comes from a country other than China, they are exempt from the tariff, according to a declaration from the economy ministry published in Mexico’s official gazette.

Vietnam’s largest steelmaker, Hoa Phat, is subject to a nearly 12 per cent tariff while Posco Vietnam will face a 26 per cent tariff, though the country of origin exemption also applies to them.

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