STMicroelectronics (ST) is a global semiconductor company that designs, manufactures, and sells chips across four end markets: Automotive, Personal Electronics, Industrial, and Communications Equipment, Computers & Peripherals. ST's two core product lines are microcontrollers (MCUs) and power/analog semiconductors. ST's STM32 MCU family is the leading 32-bit general-purpose MCU globally, with over 1.5M active developers, and is used in industrial machines, IoT devices, consumer electronics, and cars. ST's power and analog products include silicon carbide (SiC) chips for EV powertrains, MEMS sensors, and analog ICs for power management. ST sells to over 200,000 customers — including Apple, Tesla, Bosch, and SpaceX — through a direct sales force for large OEMs and distributors for smaller customers. ST is an integrated device manufacturer (IDM), meaning it both designs chips and owns its fabs, which it argues enables product performance that fabless competitors cannot replicate. Profitability is highly sensitive to factory utilization: ST's cost structure is largely fixed, so margin expands when factories run full and compresses sharply when volumes drop. ST is currently restructuring its manufacturing footprint, closing older fabs and migrating to more efficient 300mm silicon and 200mm SiC platforms, with major facilities in France and Italy supported by significant government grants. Key growth drivers include SiC power devices for EVs, data center optical interconnect and AI server power management, LEO satellite chips, and continued MCU ecosystem expansion.