However, the company, the world's largest steel producer, reportedly confirms that negotiations are progressing.
Despite the dip in purchases, the country's steel imports jumped more than 140% year-on-year in February.
Pig iron exports also increased in the first two months on the year, according to steel industry association IABr.
Despite the drop, the region's output showed a marginal increase in the first two months of the year.
Positive signs are emerging in Mexico's steel sector, with financial results improving across the board and new investment planned, despite uncertainty over future US trade relations.