（a）This Convention applies to contracts of sale of goods between parties whose places of business are in different States:
（1）when the States are Contracting States; or
（2）when the rules of private international law lead to the application of the law of a Contracting State.
The fact that the parties have their places of business in different States is to be disregarded whenever this fact does not appear either from the contract or from anydealings between, or from information disclosed by, the parties at anytime before or at the conclusion of the contract
