And now, the head of a leading Chinese glass maker making the same move has openly questioned if his country really is such a lucrative destination for offshore factories, reports Hong Kong newspaper the South China Morning Post.

Overall speaking, the tax burden for manufacturers in China is 35% higher than in the U.S., Cao Dewang told China Business Networkin an interview. He added that a combination of cheap land, reasonable energy prices and other incentives means that, despite higher manufacturing costs, he can still make more money by making glass in the U.S. than by exporting Chinese-made panes to the U.S. market.

His company, Fuyao Glass, has invested over $1 billion stateside, according to the Post, the most significant move of which is opening its U.S. factory in the Ohio town of Moraine, a suburb of Dayton, back in October. The glass maker is re-purposing the town's former General Motors assembly that had been standing empty since late 2008, as the Dayton Daily News reports.

According to Ohio TV station WDTN, the plant now employs a workforce of almost 2,000, and Cao expects that the fully operational facility will employ up to 3,000 workers.

Wage and transportation costs are getting higher in China, Cao says. Compared with four years ago, labor wages [in China] today have tripled, he told China Business Network. Meanwhile, transportation in the U.S. costs the equivalent of less than one yuan ($) per kilometer, while road tolls [in China] are higher, he added, pointing out that some mid- and small-sized Chinese enterprises have already started moving to Southeast Asian countries like Vietnam and Cambodia for cheaper wages and materials.

Fuyao is not the first Chinese business making the move across the Pacific in recent years. According to the Wall Street Journal, Chinese companies invested over $20 billion in the U.S. last year -from a practically nonexistent total investment back in 2006.

And yet, it would probably be mistaken to write off the world's second largest economy as a manufacturing powerhouse once and for all. As Fortune reported in early December, the latest data indicates that China's manufacturing sector is in its strongest position in some years, buttressing the country's economic growth along the way.

According to files obtained by Bloomberg, Google used the so-called "Double Irish" and a "Dutch Sandwich" tax avoidance method.

The scheme is complicated. First, Google’s taxes outside the US are sent to Ireland to Google Ireland Limited. Then, the profits are sent to the Netherlands, which is also acknowledged for low corporate taxes.

Then, the money is sent from the Dutch subsidiary to a Bermuda shell company known as Google Ireland Holdings Unlimited, which has no employees but has the rights to Google's intellectual property.

Bloomberg further reported that using the tax avoidance scheme Google sent 40 percent more of its profits in 2015 than in 2014. In total, Google has sheltered $58.3 billion from US taxation, according to parent company Alphabet’s filings.

While Ireland closed the loophole last year, corporations may still enjoy it until 2020.

The report may be of interest to the EU antitrust chief Margrethe Vestager, who has recently been tackling inappropriate behavior of US companies on the European market.

Just on Tuesday, the European Commission found Facebook guilty of providing misleading information before winning approval to buy the WhatsApp messenger in 2014. The company is facing a fine of up to one percent of annual sales.

In August, Apple was fined €13 billion after a European investigation concluded Ireland provided the iPhone maker with a favorable tax rate.

Vestager is also digging into major US corporations like McDonald’s, Starbucks and Chrysler.