When the Trans Pacific Partnership accord was declared on Monday, Brenda Barnes prepared herself for phone calls from clients. The manager with international trade services company Geo. S. Shrub & Co. Inc., said her agriculture exporter customers already are getting the opportunity to chip away at dealing with buyers in 11 nations that hit the deal with the US. “This will open up exchanges very quickly for new contracts,” Ms. Barnes said. From little cargo merchants like Portland, Ore.- based Geo. S. Shrubbery & Co. Inc. to global logistics titans like United Parcel Service Inc., production network suppliers are preparing…