* Czech August PMI rises to 57.3, from 56.8 in July
* Polish PMI <PLPMI=ECI> at 37-month high of 53.8
* Hungarian PMI, different methodology, slips to 51.9
By Michael Winfrey
PRAGUE, Sept 1 (Reuters) - A surge in new orders boosted manufacturing in the European Union's biggest emerging economies in August, adding jobs and fuelling growth on the back of a better-than-expected recovery in economic powerhouse Germany.
Industry in Poland and the Czech Republic, whose car, electronics, and other industrial producers are crucial suppliers for German exporters, has expanded around 10 percent or more for most of this year due to strong demand from Asia.
Analysts say a sputtering U.S. recovery and a change in tack by EU countries from economic stimulus to budget cutbacks will probably weigh down that expansion at the end of this year, but manufacturers showed few signs of slowing last month.
The Czech Purchasing Managers' Index (PMI) rose to 57.3 in August from 56.8 in July, holding above the breakeven point for the tenth month running, research firm Markit said on Wednesday.
Polish PMI <PLPMI=ECI> rose to a 37-month high of 53.8 points, and the output reading grew to its highest level since June 2006.
A number above 50 indicates expansion and below 50 contraction. Economists said the strong data was clearly tied to growth in Europe's largest economy Germany, which grew at 2.2 percent in the second quarter, its fastest level since the reunification that followed the fall of communism.
"With the very strong numbers out of Germany, the regional growth is well supported. There's no double dip. There's no slowdown present in the third quarter," said Barclay's Capital economist Daniel Hewitt. "It doesn't rule out something later down the line... but they're holding in there fine."
Hungarian PMI <HUPMI=ECI>, compiled under different methodology, fell to 51.9 in August, from 53.5 in July.
Other data showed Hungary's imports rose by 20.9 percent in June versus a year earlier, while exports were up by 24.5 percent. Domestic demand remains depressed in one of the countries forced to seek IMF aid after 2008's financial turmoil.
The region's currencies gained slightly. The Polish zloty <EURPLN=> was 0.15 percent stronger while the forint <EURHUF=>, which led losses on Tuesday, gained 0.2 percent after easing briefly following the PMI decline. [
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FOLLOWING GERMANY
Manufacturing activity in the euro zone, however, expanded in August at its slowest pace since February as the pace of recovery among member countries diverged. [
]German manufacturing PMI slowed to 58.2, from 61.2 in July, but remained well above the 50-point break-even level.
Although the Polish zloty <EURPLN=> and Czech crown <EURCZK=> have appreciated 2.5 and 6.0 percent against the euro this year, they are still well below pre-crisis levels, a fact that has made exports cheaper and helped fuel growth.
Poland is also surfing a strong wave of demand from 38-million domestic consumers, the main reason it was the only EU state to avoid contraction last year and showed 3.5 percent growth in the second quarter.
Analysts said although PMI remained well above the border marking expansion, all countries but Poland were still showing limited signs that the manufacturing surge was filtering into domestic economies.
That was illustrated by data from Romania. Like Hungary, which has enacted cost-cutting reforms as part of a 20 billion euro EU and International Monetary Fund deal, it is suffering from weak domestic demand, which shrank 0.7 percent year-on-year in the second quarter.
That is not expected to spill over into stronger industry-heavy states like the Czech Republic, whose exports equal around 75 percent of economic output.
But with governments in the euro zone -- eastern Europe's main export market -- embarking on cost cutting reforms to rein in big debt piles and slash wide budget deficits next year, economists said a slowdown could be around the corner.
"I am slightly worried about development in the coming months," said David Marek, chief economist at Prague-based Patria Finance. "Europe may also experience a slowdown similar to the United States. Europe cannot hold growth alone, because demand in EU countries... remains relatively weak." (Reporting by Michael Winfrey; editing by Patrick Graham)