Castech in Ramos Arizpe, Coahuila, Mexico, has been (a) leader in the production of aluminum cylinder heads and blocks, with a global order book from GM, with products for North America, Australia, and Europe.

Set up as a joint venture, now between Grupo Industrial Saltillo and Hydro Aluminum GmbH, the company has grown since its beginning in 1998 to a capacity of more than 2 million head and block units per year.

General Motors de Mexico leads automotive companies in Mexico in sales. It began operations in this country in 1935 and today has efficient and modern manufacturing plants as in Ramos Arizpe, Coahuila. GM's investment is substantial as Mexico's single largest private employer.

The Ramos Arizpe plant has been internationally recognized since its beginnings in 1981.

Daimler-Chrysler developed a project to construct a plant to produce engines of 4 cylinders and in this project it was including a study of practicality to determine which was the most favorable place to set the plant and it was decided for installing it in Saltillo.

During these almost 25 years Daimler-Chrysler has supported a constant growth, at present they already have plants of stamping and assembly. Also Daimler-Chrysler set in the south of Saltillo a new assembling truck plant in April, 1995.

Johnson Controls is a company that was born on February 3, 1999 in Ramos Arizpe, Coahuila.

Having a high expectation of what its products would facilitate the life of the automotive entrepreneurs. Since its activity is the automotive parts manufacture.

They assure its permanence until the year 2010.
Technotrim one of the local facilities of Johnson Controls recently won the Chairman’s Award.
The Corporation has 8 plants in the State with more than 8000 eployees.

Delphi Systems is an Energy and Chassis plant located in Ramos Arizpe Coahuila.

Delphi Systems is a subsidiary of Delphi Corporation based in Troy, Michigan in the United States. This manufacturing plant is part of Delphi Energy and Chassis Mexican Operations and started in October of 1998 and registered as a maquiladora producing automotive components. 

Delphi Systems Saltillo Operations is a 201,337 square foot facility (built area) and purchases over 4.5 million of components and produces more than 206,500 finished goods monthly.

Deere and Co opened a new diesel engine manufacturing plant in Torreon,Coahuila Mexico, called Motores John Deere. The facility covers 490,000 sq ft and started operating in Jan 1998 with a 310-employee staff. It is capable of producing 50,000 engines annually and is equipped with the latest manufacturing equipment.

Representing the first significant investment in a new North American diesel engine manufacturing plant in an arguable number of years, the Deere Power Systems Group (DPSG) has begun production at Motores John Deere. A 490,000 sq.ft. engine manufacturing facility in Torreon, Mexico, Motores John Deere is 100 percent owned by Deere & Co. reporting through DPSG. The plant currently employs about 310 people with employment expected to be about 500 at full production.

Teksid Aluminio de México plant is located in a very strategic position, at only 125 miles from the U.S.border.

Since the beginning of its operations in January 1997, Teksid Aluminio de México has been supplying three types of cylinder blocks with co-cast liners to Chrysler plants in U.S.A., and low pressure bed plates to General Motors plants, also in U.S.A.

By the end of 2001 the facility doubleed its original size and also supply automotive components in aluminium alloys to Ford (engine heads) and Nissan (cylinder engine blocks) for their U.S.A. plants.