China will host a summit that includes its key Latin American trade partners this week in an effort to advance influence and partnerships in the region, as Beijing and Washington try to defuse their trade war.

Top US officials involved in high-level trade negotiations with China emerged from two days of talks touting “substantial progress” and appearing to confirm that a deal between the two countries had been reached,

The U.S. and China had “productive” trade negotiations over the weekend, U.S. officials said Sunday, without announcing any further details.