Canadian Solar Inc is a Canadian solar power company. It is an integrated provider of solar power products, services, and system solutions. The company engages in designing, developing and manufacturing solar ingots, wafers, cells, modules and other solar power products. It operates through two business segments MSS segment and Energy segment. The MSS segment involves the design, development, manufacturing, and sale of solar power products, including standard solar modules and specialty solar products. Its Energy segment consists of solar power project development and sale and EPC and development services. Most of the revenue is earned from the MSS segment. Geographically, it derives the majority of revenue from the United States.