* Wanxiang offers about $260 mln for A123
* Wanxiang beats Johnson Controls/NEC Corp joint bid
* Chinese companies have launched $51.3bln worth of outbound deals in 2012
* Sale must be approved by Delaware Bankruptcy Court, hearing on Tuesday
By Tom Hals
WILMINGTON, Del., Dec 8 (Reuters) - China's largest maker of auto parts won a politically sensitive auction for A123 Systems Inc, a bankrupt maker of batteries for electric cars that was funded partly with U.S. government money, A123's investment banker said on Saturday.
Timothy Pohl of Lazard Freres said Wanxiang Group Corp's bid of about $260 million topped a joint bid from Johnson Controls Inc of Milwaukee and Japan's NEC Corp for the maker of lithium-ion batteries.
Siemens AG of Germany had also qualified to bid, according to two people familiar with the auction, who asked not to be identified. The auction began on Thursday.
Chinese companies have launched $51.3 billion worth of outbound deals this year, making it Asia's second-biggest spender on overseas acquisitions behind Japan, according to Thomson Reuters data.
While state-owned oil giants continue to dominate outbound deals, recently Chinese companies have targeted deals aimed at securing technology know-how. That shift is supported by China's five-year development plan that puts emphasis on industries such as high-end manufacturing equipment.
Earlier this year, Shandong Heavy Industry Group agreed to buy a quarter stake in Germany's Kion Group, giving China access to industrial technology from the world's number two fork lift truck maker.
Before that, Xuzhou Construction Machinery Group agreed to buy a majority stake in privately held German machinery manufacturer Schwing, while Sany Heavy Industry bought rival Putzmeister in a 360 million euro ($472 million) deal.
Wanxiang, one of the largest non-government-owned companies in China, has annual revenue of more than $13 billion and supplies auto parts to many of China's largest automakers.
News of Wanxiang's winning bid comes only a day after the Canadian government approved a controversial deal allowing China's state-owned oil company CNOOC to buy energy company Nexen Inc for $15.1 billion..
Wanxiang's approach for A123 had stirred a political storm and one U.S. politician was quick to warn about A123 and its sensitive, U.S. taxpayer-financed technology falling into the hands of a Chinese company.
"Given the thin line between Wanxiang and the Chinese government, I am concerned about the government of China having access to sensitive technologies being used by our military forces," said a statement from Congressman Bill Huizenga, a Republican from Michigan where A123 has plants.
The sale did not include parts of A123's business that works with the U.S. Defense Department, a source close to the deal said. That portion of the company went to another bidder, which the source did not identify.
The sale must be approved by Delaware Bankruptcy Court judge Kevin Carey at a hearing scheduled for Tuesday.
Opposition to the deal will likely focus on the Committee on Foreign Investment in the United States, which would need to approve the sale to Wanxiang.
U.S. politicians and retired military leaders have already pressed the government panel to reject Wanxiang.
Separately, the U.S. government has also said it must give its consent before its $249 million grant to A123 can be transferred to a new owner. The battery maker can still draw $120 million under various government grants, according to court records.
It was unclear if the grant would be transferred to Wanxiang.
A123, whose customers include Fisker Automotive, General Motors Co, BMW and the U.S. military, received the U.S. government grant as part of a program to promote clean energy.
Wanxiang has had its eyes on A123 for a while. The Chinese company struck a $465 million investment deal meant to save A123 from bankruptcy earlier this year. That agreement fell apart after A123 failed to meet certain criteria, according to court documents.
The Chinese company is no stranger to investing in the United States.
Wanxiang generates about $1 billion in revenue in the United States by supplying parts to GM and Ford Motor Co and has bought or invested in more than 20 U.S. companies, many of them in bankruptcy, said a congressional report.
Those past investments could help Wanxiang get approval to buy A123, but the deal will be closely scrutinized because it involves advanced technology, said Andrew Szamosszegi, who wrote the report for the U.S.-China Economic and Security Review Commission.
A123 filed for Chapter 11 bankruptcy protection in October.
The money from the auction will go toward paying off A123's creditors. The company listed liabilities of $376 million when it filed for bankruptcy.
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