SHANGHAI—German auto parts supplier Bosch on Tuesday said it has suspended production at two sites in the Chinese cities of Shanghai and Changchun as it follows government policies to contain a surge of COVID-19 cases. Bosch said it had paused production at a Thermotechnology factory in Shanghai and an automotive components site in Changchun in northeastern Jilin province. Two other auto parts plants in Shanghai and neighbouring Taicang city are maintaining “closed-loop” operations, in which workers sleep, live and work in isolation from the rest of society to prevent virus transmission, the manufacturer said. “We are currently seeing temporarily effects on logistics and supply chain sourcing,” Bosch said in a statement. “In this situation, we are doing everything we can to maintain the supply chains as much as possible and to serve the demands.” China has imposed strict lockdowns to contain the spread of the highly contagious Omicron variant, including …