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Monolithic Power Systems is an analog and mixed-signal chipmaker, specializing in power management solutions. The firm's mission is to reduce total energy consumption in end systems, and it serves the computing, automotive, industrial, communications, and consumer end markets. MPS uses a fabless manufacturing model, partnering with third-party chip foundries to host its proprietary BCD process technology.
Ameren owns rate-regulated generation, transmission, and distribution networks that deliver electricity and natural gas in Missouri and Illinois. It serves more than 2.4 million electricity customers and more than 900,000 natural gas customers.