Chinese researchers have not been able to access Nasa's moon samples because of restrictions imposed by US lawmakers on the space agency's collaboration with China. Under the 2011 law, Nasa is banned from collaboration with China or any Chinese-owned companies unless it is specifically authorised by Congress.

Multiple carriers of petroleum-based gases traveling from the US to China have begun diverting to other countries due to the intensifying trade war between the world’s two largest economies.

China trade tensions have drawn intense attention, business leaders who focus too narrowly on tariffs risk missing a deeper, longer-term shift. China’s economic strategy—centered on reducing dependence on foreign firms,