Stephen Engle

Add to that our lingering worries importers and exporters here feel about the fragile trade truce with the United States.

U.S.

wine exports to China this year were down 77 percent in the seven months through July from a year ago, with Chinese tariffs and taxes combined amounting to about 75 percent on American wine.

And yet Barros is cautiously optimistic for a recovery as the truce has kept tariffs from escalating further.

It's an endurance game shared in some respect by the many influencers in nearby booths.

To keep talking and to keep the parties on the other end engaged.

Stephen Engel, Bloomberg News, Shanghai.