MACRONIX INTERNATIONAL Business Summary

Macronix International Co., Ltd. (2337.TW) operates as a leading Integrated Device Manufacturer (IDM) in the non-volatile memory (NVM) sector, generating revenue through the design, fabrication, and sale of specialized memory solutions and wafer foundry services. The company’s primary business segments include Flash memory (NOR and NAND), which accounts for the majority of its top-line growth, and Mask Read-Only Memory (ROM), where it maintains a dominant global market share. As of early 2026, Macronix is aggressively expanding its high-density NOR Flash capacity to capitalize on surging demand for AI-driven edge computing and automotive electronics. Within the competitive landscape, Macronix competes directly with Winbond Electronics, GigaDevice Semiconductor, and Infineon Technologies; it distinguishes itself as the world’s largest supplier of ROM and a top-tier provider of high-reliability serial NOR Flash for the industrial and automotive sectors. Founded in 1989 by Chairman and CEO Miin Wu, the company was established by a team of semiconductor veterans returning to Taiwan from Silicon Valley. Miin Wu, an alumnus of Stanford University with a pedigree at Intel and VLSI Technology, is credited with pioneering the use of statistical process control in semiconductor manufacturing. The leadership team is further bolstered by President Dr. Chih-Yuan Lu, a Columbia University Ph.D. and IEEE Fellow who previously held senior roles at AT&T Bell Labs and Vanguard International Semiconductor. Notable institutional influence is maintained through the board of directors, which includes representatives from major shareholders such as Shun Yin Investment Ltd. (a subsidiary of MegaChips Corporation) and significant positions held by domestic institutional investors like Fuh Hwa and Yuanta Securities Investment Trust.