U.K.-based risk management firm Russell Group Ltd. said the recent worker strikes at the five crucial ports of Emden, Brake, Bremen, Bremerhaven, and Hamburg in Germany could lead to a trade loss of $6 billion, Port Technology reported. The workers went on strike for 24 to 48 hours due to an impasse in negotiations between unions and employers. The disruptions have affected commodities such as pharmaceuticals, cars and people carriers, and good transport vehicles.