The Pentagon added tech giants Alibaba and Baidu and carmaker BYD to a blacklist of Chinese companies with military ties amid widening competition between the world’s two largest economies. Drug maker WuXi AppTec, robot company Unitree and carmaker Nio were among other businesses added to the 1260H list, according to a US Department of Defence notice. Some Chinese companies no longer operating in the United States were removed in the annual update.