Lansing, Michigan - A half-dozen companies from Southeast Michigan are on a weeklong trade trip to Mexico designed to increase exports from the state.

The companies and a delegation from the Michigan Economic Development Corp. left Sunday for Mexico City, Monterrey and Queretaro, where they will participate in matchmaking meetings and other networking opportunities with Mexican companies. They are scheduled to return Saturday.

Participating in the trip are:

• Duggan Manufacturing LLC in Shelby Township, which makes precision metal parts for such industries as aerospace, defense and automotive;

• Hydra-Lock Corp. in Mount Clemens, which makes hydraulic arbors, chucks and other fixtures;

• KC Jones Plating Co. in Warren, which engineers metal finishing solutions for the auto industry;

• Magnetic Products Inc. in Highland Township, which makes material handling solutions;

• Orion Test Systems and Automation Inc. in Auburn Hills, which produces electronic, mechanical, hydraulic and other test equipment; and

• RnD Engineering LLC in Livonia, which makes custom-built machines for parts finishing.

Companies from Holland, Muskegon and Burton in Genesee County round out the 10 participating businesses.

Mexico is Michigan's second-largest trade partner, behind Canada, according to the U.S. Department of Commerce's International Trade Administration. The state shipped more than $11.1 billion worth of goods to the country last year.

Michigan's main export is transportation equipment, followed by machinery, chemicals and computer and electronic equipment, according to the ITA.

The MEDC said companies participating in its international trade program had sales of more than $45 million to Mexico in the 2015 fiscal year, with another $30.3 million in the first quarter of this fiscal year.

The state said total trip costs won't be known until afterward, though the state has budgeted at least $1,800 for airfare. The MEDC's international trade budget will fund the trip along with fees from traveling companies, a spokeswoman said.