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.

The lead U.S. negotiator in trade talks with China cheered “a great deal of productivity” in resolving differences between the world’s two leading economic powers, after officials wrapped two days of bargaining in Switzerland following President Donald Trump imposing steep tariffs and Beijing retaliating.