SHANGHAI (Reuters) - Foreign firms say they are struggling to gain access to China’s vast railway market as the country, seeking to transform its domestic industry into an export powerhouse, tightens the bidding criteria on rail tenders.

A man looks at the bullet trains serving the new high-speed railway linking Shanghai and Hangzhou in Shanghai October 26, 2010. REUTERS/Aly Song

The complaints echo similar concerns raised in other industries including technology and renewable energy, and highlight what some foreign companies see as an uneven playing field when operating in China.

Four rail suppliers with offshore funding said they were finding it harder to win contracts thanks to the proliferation of government-supported rivals, with at least one saying it was already experiencing discrimination.

“In the last 1-2 years there have been tendencies to disregard foreign-invested companies as Chinese companies, and to prefer Chinese-invested companies versus foreign-invested companies,” Ansgar Brockmeyer, board chairman of German brake maker Knorr-Bremse’s Asia Pacific arm, told Reuters.

Foreign participation in China’s rail market has for the last decade been limited to minority stakes in joint ventures or as sub-suppliers of domestic players, often with the condition that they transfer technology to local partners.

Many, like Germany's Siemens AG SIEG.DE and Canada's Bombardier BBDb.TO did and consequently helped build the world's biggest railway network by both length and revenue.

Beijing now wants to help many of these local partners such as CRRC Corp 601766.SS1766.HK become globally competitive behemoths which will export home-grown technology. Its "Made in China 2025" plan released last year described railways as a priority sector.

Some industry insiders say this is causing concern that wholly-local firms are being increasingly favored at the expense of foreign invested companies.

Knorr-Bremse, which has been supplying braking systems to metro operators for 25 years, said it had received tender documents from 11 Chinese cities in 2015 that stipulated new bidding rules which scored down foreign-invested firms versus purely local names. It lost out on three as a result, it said.

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“We are concerned that ... this might become a trend but on the other hand we can’t really imagine because this would clearly infringe any World Trade Organisation agreement,” Brockmeyer said. “We are in discussions with the local governments and the NDRC on this.”

The 11 Chinese cities including Kunming, Urumqi and Guangzhou have begun to score companies on whether they are foreign-invested or 100 percent local firms. In the past firms simply had to prove that at least 70 percent of their supply chain was in China. Metro operators award bidders on different categories such as price, which they later add up to determine a winner.

The metro operators of Kunming, Urumqi and Guangzhou as well as the National Development and Reform Commission did not respond to Reuters’ requests for comment.

“INCREASINGLY HOSTILE” ENVIRONMENT

The European Chamber of Commerce in China has also raised concerns over tougher conditions for companies with foreign investment, saying recent statements from Beijing about opening the rail market up to private capital “indicates that the government treats domestic capital preferentially.”

“For the market for urban rail, the regulatory system also restricts foreign companies from bidding directly for rolling stock and signaling business. In some instances it even prevents Sino-foreign JVs from obtaining a license or qualification to bid,” the Chamber said.

The Chamber in June warned of an “increasingly hostile” overall business environment that was tilted in favor of domestic firms.

Such concerns have been particularly prevalent in the technology sector, which lobbied U.S. President Barack Obama last year.

In February last year, China dropped some of the world’s leading technology brands from its approved state purchase lists, while approving thousands more locally made products.

Other rail suppliers spoke of growing pressure coming from a proliferation of new local rivals, many of whom are government-supported.

"The new competitors we're facing here in China are purely local companies," said Lv Yachen, who chairs a joint venture between French electronics firm Thales SA TCFP.PA and state firm Shanghai Electric Group [SHEGP.UL], which supplies signaling systems to Chinese subway project. "As the NDRC is attaching great importance to independent property rights, we used to have 4-5 signaling suppliers in the industry but now it has become nine and another three are to be approved very soon," he said. Two industry executives who declined to be named for fear that it would affect their business relationships said some firms were considering shifting their focus to other overseas markets, or choosing to downplay the foreign participation in their partnerships to cope with the "buy local" push.

“Now it’s all about buying from Chinese companies,” said a source from a large European railway supplier. “It’s harder to do business here.”