Ternium Expands Pesquería Steel Complex

Ternium’s new steel mill at the Pesquería Industrial Center is scheduled to begin operations in the first quarter of 2027, with an annual production capacity of 2.6 million metric tons of steel slabs. The project represents the third phase of the complex’s expansion and involves an investment of US$4 billion.

The start of operations at the facility will allow Ternium to integrate a larger portion of its production process by manufacturing its own slabs from iron ore and scrap metal. This will reduce the company’s reliance on external inputs and strengthen the supply chain for its hot-rolling mill.

The hot-rolling mill currently has a processing capacity of 4.1 million metric tons and receives steel slabs transported by rail, primarily from the port of Altamira. With the new steel mill, approximately two-thirds of its raw material requirements are expected to be supplied by the complex’s own production, while the remaining third will continue to arrive by rail.

“Pesquería is our first opportunity to undertake a project from the ground up—where we purchased the land, designed the plant, selected the technology, installed it, built it, and brought it online. We had the opportunity to implement the best technology, choosing the safest and most profitable options, and the truth is that it has been a huge success,” said César Jiménez, president of Ternium México, during a tour of the facilities.

The third expansion phase, which runs from 2023 to 2026, represents the largest investment of the complex’s three phases, totaling approximately US$4 billion across five subprojects. One of the main projects is the new steel mill, which is designed to meet growing market demand.

Producing slabs within the same complex will allow Ternium to control the steel’s chemical composition from the smelting process through to the final product, ensuring the traceability required by certain automakers.

Once the third phase becomes operational, the Pesquería Industrial Center is expected to employ approximately 3,000 people directly and indirectly. With an annual production capacity of 2.6 million metric tons, the new steel mill will be a key component of Ternium’s expansion and production integration strategy in Nuevo León.