SAN LUIS POTOSI, Mexico (Reuters) - Ford Motor Co's F.N abrupt move to scrap a planned $1.6 billion car plant in central Mexico has spooked a network of suppliers who bet on a growing customer base and dramatized the risk that Donald Trump's agenda poses to the country's broader economy.

A billboard welcoming Ford Motor Co is seen at an industrial park in San Luis Potosi, Mexico, January 4, 2017. REUTERS/Christine Murray

Many auto parts makers had started to expand in anticipation of Ford’s plant in the state of San Luis Potosi, where industry is “easily 70 percent” dependent on the auto sector, said Julian Eaves, managing director of Preferred Compounding de Mexico, a U.S.-owned maker of rubber compounds operating here.

“It’s going to have a huge impact on the local community,” said Eaves.

The loss to the economy, Eaves calculates, could run into the hundreds of millions of dollars, and maybe even into the billions, over the next five years, as manufacturing, contracting and indirect jobs all fall short of plans. Officials say they are still analyzing the economic impact of the Ford decision.

The hemorrhaging may be just the beginning of Mexico’s pain from Trump’s vows to shake up trade and bring manufacturing jobs back north when he takes office on Jan. 20.

Ford ascribed its move to a decline in North American demand for small cars like the ones it planned to make in San Luis Potosi. But Trump had been lambasting Ford for its Mexico operations, months before he was elected president in November.

Trump upped the ante on Thursday, threatening to slap a "border tax" on Japanese automaker Toyota Motor Corp 7203.T for cars it sells to the United States from a new plant in Mexico, fueling fears of an all-out offensive by his government on Mexican industry.

Mexico’s government on Friday “categorically” rejected any attempt to use threats to influence investment decisions in Mexico, saying it wanted to boost the competitiveness of North America. It did not mention Trump or Toyota in its brief statement.

In a matter of days, Ford’s retreat has turned the factory site into a barren plain bereft of its economic promise.

“It now looks like a cemetery,” said Fernando Rosales, 28, a hydraulic hoses contractor preparing to abandon the site. “(There is) only death here, we are all leaving.”

Ford’s decision also puts the brakes on Detroit automakers’ push to build small cars in Mexico to reduce labor costs, while using higher-paid U.S. workers for larger, more expensive vehicles.

Not far from the doomed Ford site, other major players from the global automotive industry are in the midst of multi-million dollar investments, including General Motors Co GM.N, which Trump has also repeatedly berated for investing in Mexico.

German carmaker BMW BMWG.DE is assembling a $1 billion plant, and a few miles from the Ford site, Goodyear Tire & Rubber Co GT.O is busy building a $550 million tire facility.

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The U.S. president-elect’s broadsides against Mexico have shown how exposed companies in the supply chain are to the whims of U.S. automakers under pressure not to offshore production.

Shares in Kansas City Southern KSU.N, one of the main railroad operators in Mexico, fell following news of the Ford cancellation and have lost 3.3 percent since Tuesday morning.

Between 40 and 50, mostly foreign-owned, suppliers were ready to come and supply the San Luis Potosi plant, said Sergio Resendez of real estate broker Colliers International.

“This was going to catapult us,” Gustavo Puente, the state economy minister of San Luis Potosi, said of the plant Ford originally announced in April of last year. Ford told him the plan was off about an hour before it went public with the news, he said.

Around 12 to 14 of the suppliers had already invested money buying land or signed a contract with developers, said Resendez of Colliers, though Puente suggested the number was fewer.

“It’s a very, very complicated hole,” Resendez said. “The suppliers, depending on their level of advancement, will lose money. They had already made big investments.”

‘KICK IN THE TEETH’

At the Ford premises, shocked and dejected workers packed up construction materials and prepared to leave.

“This is a massive kick in the teeth,” Rosalio Rocha, 52, a construction worker on the site from a nearby town said.

“It looks like he is going to keep going on about it,” he added, referring to Trump.

Some of the ground at the 280-hectare site had already been leveled and the skeletons of two large, white buildings stood out against a rusty brown and green backdrop.

Workers said they had heard plans for an industrial park opposite the site for suppliers had also been suspended. The park’s developers were not immediately available to comment.

The auto sector is at the heart of a Mexican industrial boom since the 1994 North American Free Trade Agreement (NAFTA) between it, the United States and Canada, a deal Trump has threatened to renegotiate in favor of the United States or scrap entirely.

“It hurts because we’re partners in trade, culture, sports, we’re partners in everything,” said Puente, the San Luis Potosi economy minister. “It hurts because they - he - is pushing a policy that wants to break those ties.”

About half of the foreign direct investment (FDI) to Mexico since the start of the century has come from the United States, where it sends around 80 percent of its goods exports.

Carmaking is no exception.

Mexico produced 3.22 million autos in the first 11 months of last year, and exported 2.55 million, local industry group AMIA said. Fully 77 percent of the exports went to the United States.

Some Mexican states have come to depend on autos almost entirely for growth. In San Luis Potosi, 15,000-17,000 new direct jobs are expected to be created in 2017, all in the auto sector, according to federal labor delegate Edgar Duron. The total does not include the Ford plant, which had been expected to create thousands of additional jobs in coming years.

The San Luis Potosi state government had already paid part of the 1 billion pesos ($47 million) it owed under a contract to support the Ford plant, Puente said, without specifying how much. The federal government said Ford would reimburse the sum.

Projects, both private and public, are underway to spend hundreds of millions of pesos to expand the city’s airport and build a new bus line in expectation of a busier future.

But the real fear in Mexico is that, as Trump himself tweeted after the Ford decision, “This is just the beginning.”

Outside the Goodyear plant in San Luis Potosi, 46-year-old Marcos Rodriguez, an engineer working on the facility, said that Mexico should assume that other sites are at risk.

“Here there’s a lot of equipment inside, so I think it would be a little more difficult,” he said. “(But) can they cancel it? I think they can.”