Yoko, Ltd$.,$ and Zeno, S$.$A$.,$ transact an international sale of goods. For these parties, and other international buyers and sellers, the United Nations Convention on Contracts for the International Sale of Goods spells out the duties that apply

if Article $2$ of the Uniform Commercial Code does not apply.

if a dispute is submitted to the International Court of Justice.

if the parties have not agreed otherwise in their contracts.

under all circumstances.