Macronix International Co Ltd designs, manufactures, and supplies integrated circuits and memory chips. It specializes in nonvolatile memory devices, including NOR Flash, NAND Flash, and read-only memory products. Macronix's NOR Flash products contribute the majority of revenue and are primarily used by customers in the consumer, computer, communications, and automotive industries. The firm operates in two segments: memory products and wafer fabrication, which generates the vast majority of revenue, and IC design. Macronix primarily operates in Taiwan, which contributes the largest proportion of revenue in China.