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Western Digital is a leading, vertically integrated supplier of hard disk drives. The HDD market is a practical duopoly with, Western Digital and Seagate being the two largest players. Western Digital designs and manufacturers its HDDs, with much of the manufacturing and workforce located in Asia. The primary consumers of HDDs are data centers.
First Solar designs and manufactures solar photovoltaic panels, modules, and systems for use in utility-scale development projects. The company's solar modules use cadmium telluride to convert sunlight into electricity. This is commonly called thin-film technology. First Solar is the world's largest thin-film solar module manufacturer. It has production lines in Vietnam, Malaysia, the United States, and India.