The German government withdrew its approval for a Chinese firm to purchase Aixtron, which makes semiconductor equipment, after the US secret services raised security concerns, a German media report said Wednesday.
Germany unexpectedly announced on Monday that it had reversed its stance on the 670-million-euro takeover ($730-million) by China's Grand Chip Investment, saying it was putting the deal back under review.
The German economy ministry said the decision was made after new "security-related information" came to light, but gave no further details.
Citing German intelligence sources, the Handelsblatt daily reported that the U-turn came after the US secret services intervened to block the deal.
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