# Macronix shuts down Nintendo ROM chip business to focus on AI flash chips

Macronix is shutting down its Nintendo ROM chip manufacturing business to reallocate production to NOR and NAND flash chips for the AI industry.

- Type: Closure
- Announced: 2026-11-04
- Status: announced
- Products: ROM chips, NOR flash chips, NAND flash chips
- Sectors: [Semiconductors and Industrial Electronics](https://endata.com/sectors/semiconductors-electronics.md)

## Companies

- [Macronix](https://endata.com/companies/16022.md)
- [Nintendo](https://endata.com/companies/16023.md) (customer)

## Sources

- [thesemiconhub.com](https://www.thesemiconhub.com/news/article/nintendo-rom-chip-supplier-macronix-quits-to-focus-on-chips-for-ai-data-centers-), 2026-11-04: "Macronix, one of Nintendo's ROM chip manufacturers, is shutting down the business to reallocate manufacturing for NOR and NAND flash chips that the AI industry demands."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.