Ternium Guerrero San Nicolás de los Garza steel plant

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Ternium Guerrero San Nicolás de los Garza steel plant (Planta Ternium Guerrero (Spanish), Planta Ternium Nuevo León (Spanish)), also known as Ternium Monterrey steel plant, Hylsa, Hylsamex (predecessor), is a direct reduced iron-electric arc furnace (DRI-EAF) steel plant operating in San Nicolás de los Garza, Nuevo León, Mexico.

Location

The map below shows the exact location of the plant in San Nicolás de los Garza, Nuevo León, Mexico:

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• Location: Avenida Guerrero Norte 151, Colonia Cuauhtémoc, San Nicolás de los Garza 66452, Nuevo León, Mexico
• Coordinates (WGS 84): 25.720327, -100.301175 (exact)

Background

Originally known as Hylsa (an acronym for Hojalata y Lámina S.A.), the San Nicolás de los Garza steel plant was founded in June 1942 to make bottle caps for local beer company Cervecería Cuauhtémoc, which was unable to import sufficient steel during WWII. Production rapidly increased and diversifed throughout the 1940s, and by 1950 the plant was already supplying steel to 900 industrial clients in Mexico.

By the late 1950s, shortages of scrap metal prompted the company to develop a new gas-based method for producing direct reduced iron (DRI). Known as the Hyl process, Hylsa's pioneering DRI technology was patented in 1957, and San Nicolás de los Garza became the world's first steel plant to adopt it for large-scale commercial use.

In 1974, the Hylsa plant became the hub of the newly founded Alfa industrial group. In 2005 Hylsa was sold to the Italian-Argentine conglomerate Techint, and in 2006 it was incorporated into the company's new Ternium division.

By the mid-2010s, the plant was producing 2.4 million tons of raw steel and 10.9 million tons of finished steel products annually and employing nearly 17,000 workers.

Plant Details

Table 1: General Plant Details

Plant status	Start date	Iron ore source
Operating	1943	Ternium Mexico mining operations

Table 2: Ownership and Parent Company Information

Parent company	Parent company PermID	Parent company GEM ID	Owner	Owner company PermID	Owner company GEM ID
Ternium SA [100.0%]	4295856130 [100%]	E100001000384 [100%]	Ternium Mexico SA de CV	4295884332	E100000004192

Table 3: Process and Products

Steel product category	Steel products	Steel sector end users	ISO 14001	ISO 50001	Main production equipment	Detailed production equipment
semi-finished; finished rolled	hot- and cold-rolled coils, profiles, tubes, slitted and cut-to-length products	building and infrastructure; tools and machinery	yes	2022	DRI, EAF	2 DRI plants (NYL-ZR began in 1983, HYL-ZR began in 1998); 2 EAF (began in 1995 and 1998)

Table 4: Crude Steel Production Capacities (thousand tonnes per annum)

*Please see our Frequently Asked Questions page for an explanation of the different capacity operating statuses.

Capacity operating status*	Electric arc furnace steelmaking capacity	Nominal crude steel capacity (total)
operating	2400 TTPA	2400 TTPA

Table 5: Crude Iron Production Capacities (thousand tonnes per annum)

*Please see our Frequently Asked Questions page for an explanation of the different capacity operating statuses.

Capacity operating status*	Sponge iron/DRI capacity	Nominal iron capacity (total)
operating	1730 TTPA	1730 TTPA

Table 6: Actual Crude Steel Production by Year (thousand tonnes per annum)

Year	EAF Production	Total (all routes)
2020	>0 TTPA	>0 TTPA
2021	>0 TTPA	>0 TTPA
2022	2112 TTPA	2112 TTPA

Table 7: Actual Crude Iron Production by Year (thousand tonnes per annum)

Year	DRI Production	Total (all routes)
2020	–	–
2021	>0 TTPA	>0 TTPA
2022	1724 TTPA	1724 TTPA

Articles and Resources

Additional data

To access additional data, including an interactive map of steel power plants, a downloadable dataset, and summary data, please visit the Global Steel Plant Tracker on the Global Energy Monitor website.

Resources

• Company website