China has postponed an online meeting between Premier Li Keqiang and Japanese business leaders that was set for earlier this week, sources close to the matter said Tuesday, with a lockdown of Shanghai weighing on the world’s second-biggest economy. Beijing may have been worried that at the meeting supposed to be held on Monday, Japan would voice concern over the negative economic impact of the prolonged lockdown of Shanghai, China’s commercial and financial hub with a population of around 25 million, they said. If the meeting took place, executives such as Masakazu Tokura, chairman of Japan’s …