Apple announced on Tuesday that it has added U.S. titanium supplier Perryman Company for the new iPhone Duo and pledged to invest $100 million in it over the next three years. Concurrently, Apple has expanded its collaboration with Qnity Electronics to boost domestic production of iPhone 18 Pro camera components. This move aims to expand local manufacturing in response to severe supply constraints facing the iPhone Duo, with pre-order delivery times for the device now extended to approximately 14 weeks, leading analysts to downgrade their shipment forecasts.