Tim Cook says he is 'really pleased' with progress on stitching together Apple's end-to-end silicon supply chain in the US
1. Apple plans $600 billion investment in U.S. manufacturing over four years. 2. CEO Tim Cook emphasizes progress in domestic chip production and supply chains. 3. Apple's $2.5 billion investment in Corning for iPhone and Apple Watch glass. 4. Positive ties with the Trump administration aid Apple's manufacturing efforts. 5. 19 billion chips are expected from the U.S. silicon supply chain this year.