Why a German minister wants to block the sale of a chip factory

German Economy Minister Robert Habeck wants to stop the sale of a chip production plant to a Chinese investor. The Green Party politician has expressed concern about giving China control over key infrastructure. Sweden-based Silex, a unit of Chinese company Sai MicroElectronics, is seeking to take over the chip firm Elmos. Silex is seeking to buy the Elmos site for some €85 million (just under $85 million). The move could see the German firm end production and simply sell Silex-made chips to its clients.