A week on from the harshest US sanctions yet on China’s access to semiconductor technology, Post tech-desk editor Zhou Xin unpacks the effect on China’s economy, the implications for American manufacturers and the dilemma faced by South Korean tech firms with big investments in China. Europe correspondent Finbarr Bermingham analyses the European Commission’s leaders meeting, where the focus is on Germany’s decision to allow Chinese shipping giant Cosco to invest in its biggest port and…