{
  "id": "E03",
  "lang": "en",
  "question": "Which Taiwanese memory companies make DRAM, NAND flash, or memory controllers?",
  "answer": "Nanya Technology makes DRAM, Winbond discloses both DRAM and flash-memory products, and Phison provides NAND controllers and storage solutions. [Source1](https://www.nanya.com/Content/InvestorCalendar/4669_20251013_Press%20Release_NTC%203Q25%20Financial%20Report.pdf) [Source2](https://www.winbond.com/export/sites/winbond/about-winbond/investor/financial-information/annual-report/report/2025-Winbond-Annual-Report_ZH.pdf) [Source3](https://www.phison.com/phison-receives-micron-outstanding-supplier-performance-award/) Winbond specifically reports NOR Flash, SLC NAND Flash and DRAM technologies, while Nanya describes DRAM research, design, manufacturing and sales. [Source2](https://www.winbond.com/export/sites/winbond/about-winbond/investor/financial-information/annual-report/report/2025-Winbond-Annual-Report_ZH.pdf) [Source1](https://www.nanya.com/Content/InvestorCalendar/4669_20251013_Press%20Release_NTC%203Q25%20Financial%20Report.pdf) These documents establish examples of the three roles; they do not provide an exhaustive list of Taiwanese memory suppliers or show that Phison fabricates NAND wafers. [Source1](https://www.nanya.com/Content/InvestorCalendar/4669_20251013_Press%20Release_NTC%203Q25%20Financial%20Report.pdf) [Source2](https://www.winbond.com/export/sites/winbond/about-winbond/investor/financial-information/annual-report/report/2025-Winbond-Annual-Report_ZH.pdf) [Source3](https://www.phison.com/phison-receives-micron-outstanding-supplier-performance-award/)",
  "facts": [
    {
      "claim": "Nanya role",
      "value": "Research, design, manufacturing and sales of consumer and low-power DRAM",
      "as_of": "2025-10-13",
      "source": "https://www.nanya.com/Content/InvestorCalendar/4669_20251013_Press%20Release_NTC%203Q25%20Financial%20Report.pdf",
      "quote": "DRAM products"
    },
    {
      "claim": "Winbond memory categories",
      "value": "DRAM, NOR Flash and SLC NAND Flash",
      "as_of": "2026-03-15",
      "source": "https://www.winbond.com/export/sites/winbond/about-winbond/investor/financial-information/annual-report/report/2025-Winbond-Annual-Report_ZH.pdf",
      "quote": "DRAM"
    },
    {
      "claim": "Phison role",
      "value": "Provider of NAND controllers and NAND storage solutions",
      "as_of": "2025-11-18",
      "source": "https://www.phison.com/phison-receives-micron-outstanding-supplier-performance-award/",
      "quote": "NAND controllers"
    }
  ],
  "not_disclosed": [
    "The cited documents are examples, not an exhaustive Taiwan supplier directory.",
    "The cited Phison announcement does not establish NAND-wafer fabrication by Phison."
  ],
  "related_companies": [
    {
      "name": "Nanya Technology",
      "ticker": "TWSE:2408"
    },
    {
      "name": "Winbond",
      "ticker": "TWSE:2344"
    },
    {
      "name": "Phison",
      "ticker": "TPEX:8299"
    }
  ],
  "verified_at": "2026-10-22T16:41:27.244961+08:00"
}