Apple products are assembled in multiple countries, with Foxconn handling most iPhone production in China. TSMC, based in Taiwan, produces cutting-edge chips like the A19 Pro, though older models use Samsung-made components. U.S. tariff policies in 2025 forced Apple to diversify suppliers, shifting some chip manufacturing to Texas and exploring partnerships with Intel for lower-tier processors. Samsung Display supplies OLED panels for iPhones, while LG Display provides screens for Studio Display models. Corning's Ceramic Shield glass and Sony-made camera sensors remain key components, though Apple is testing Samsung-based cameras in the U.S. to reduce reliance on Japan. Qualcomm modems power iPhone 17 series devices, and Texas Instruments provides power management chips. Apple’s complex supply chain spans Asia, Europe, and North America, balancing cost, logistics, and geopolitical risks.