Identifying the source of your supplied metals is the main purpose of Conflict Minerals Compliance. A Smelter is the first stop for raw materials once they have been mined or recycled by the provider.
The first airplane to take flight was built by the Wright brothers  in Ohio USA and was transported first to North Carolina and flown  for its first time there.
The airplane was invented by the Wright Brothers in 1903, just 11 years before the start of World War I. When the war first began, aircraft played a small role in warfare, but, by the end of the war, the air force had become an important branch of the armed forces.