Mexico’s maquiladora program has been a central feature of the U.S./Mexico border. This border stretches nearly 2,000 miles, from the Pacific Ocean in California to the Gulf of Mexico in Texas. Four U.S. states (Arizona, California, New Mexico, and Texas) and six Mexican states (Baja California, Chihuahua, Coahuila, Nuevo Leon, Sonora, and Tamaulipas) make up the border. Texas contains the longest section of the U.S. border with Mexico, with several large and numerous small border crossings across the Rio Grande. Compared with Texas, California’s border with Mexico is relatively short, but it includes San Diego–Tijuana, the single busiest U.S./Mexico border crossing. Arizona’s principal border crossing with the Mexican state of Sonora at Nogales plays a significant role in agricultural trade. The relatively small border crossings between New Mexico and Mexico reflect the sparsely populated areas in that region of the border. This map shows the U.S./Mexico border, including all U.S. and Mexican border states, some Mexican border cities with varying concentrations of maquiladora plants, and some ports of entry on the U.S. side of the border

It's asking to list 4 states which own Maquiladoras and then Secondly, list 4 Companies which own Maquiladoras.

For states I got Arizona California New Mexico and Texas

I couldn't find companies from this paragraph

No companies are listed in this paragraph. Are you supposed to find them on the map that is referred to? Are they named there?

You are wrong about the states. Marquiladoras are only in Mexico. Check this map.

http://images.slideplayer.com/16/4956003/slides/slide_25.jpg

This site has a list of companies owning marquiladoras.

http://www.corpwatch.org/article.php?id=1528

All of the following are concerns about maquiladoras, factories on the United States-Mexico border, except

a.
they severely lower the GNP of Mexico.
b.
they negatively impact people’s health.
c.
they provide tedious work for low pay.
d.
they create air and water pollution.

To find four companies that own maquiladoras, you may need to conduct additional research beyond the information provided in the paragraph. The paragraph only mentions the states along the U.S./Mexico border but does not specify any particular companies.

To find companies that own maquiladoras, you can try the following steps:

1. Research Maquiladora Companies: Start by searching for companies that are known to operate maquiladoras in Mexico. Maquiladoras are manufacturing plants mostly owned by foreign companies, so you can focus your research on international corporations.

2. Use Company Directories: Look up international company directories or databases that specialize in providing information about businesses operating in different countries. These directories often have search filters that allow you to narrow down your results by industry or location.

3. Explore Trade Associations: Check out trade associations or organizations related to manufacturing, exporting, or foreign investment in Mexico. These associations often have member directories that can give you an idea of the companies involved in the maquiladora program.

4. Consult Government Reports: Government agencies or trade departments may publish reports or documentation on companies involved in the maquiladora program. These reports can provide valuable information about the companies and their operations.

Remember, the specific list of companies that own maquiladoras can vary, as new companies enter the market and ownership changes over time. Therefore, it is essential to refer to up-to-date sources for accurate information.