Yes, Mike Meyer, it shouldn't matter where the products and components come from. But then America (and the world) is in a nationalist and protectionist direction championed by Joe Biden with his "Buy American."
Practically, the tax credit for EVs is redundant because the demand currently outstrips supply.
When cities come to replace their bus fleets with EVs, there will be a cry that they MUST be America n made (and certainly NOT China) to receive federal grants. This is guaranteed not to deliver the best value and wastes money that could be paying for other climate control measures.
Many thanks.