The German government said Wednesday that it would allow a Chinese firm to buy a stake in a Hamburg port, after the terminal was classed as critical infrastructure. The government controversially gave the go-ahead in October for state-owned Chinese shipping giant Cosco to buy up to a 24.9-percent stake in the Tollerort container terminal in Hamburg. The green light came despite security concerns over the sale of the infrastructure to Chinese investors, with Chancellor Olaf Scholz resisting calls to ban the sale outright. In April, Berlin said it was reassessing whether to allow the sale to go ahead. But on...