Slide 1: 1Q26 Investor Conference
1Q26 Investor Conference May 5th, 2026 1
Slide 2: Safe Harbor Notice
Safe Harbor Notice • We have made forward-looking statements in this presentation. Our forward-looking statements contain information regarding, among other things, our financial condition, future expansion plans and business strategies. We have based these forward-looking statements on our current
Slide 3: Agenda
Agenda 01 Financial Results Hsiang-Yun Fan - EVP 02 Business Recap & Outlook James Chen - President 03 Excellence & Forward Jason Lin - VP 04 Q & A 3
Slide 4: Financial Results
te vy mes wy i >, a 4 Ye} ~, ay j Financial Results
Slide 5: Statement of Comprehensive Income - Consolidated
Statement of Comprehensive Income - Consolidated (In NT$ millions unless otherwise noted) 1Q26 4Q25 QoQ 1Q25 YoY Net Sales 38,253 26,625 +43.7% 19,993 +91.3% Gross Profit 20,415 11,146 +83.2% 5,122 +298.6% Gross Margin 53.4% 41.9% +11 ppts 25.6% +27 ppts Operating Expenses 7,865 7,054 +11.5% 6,087 +
Slide 6: Revenue by Products - Consolidated
Revenue by Products - Consolidated NT$M 1Q26 vs. 4Q25 (QoQ) 53% 47% 42% 8,587 28% 33% 29% 27% 26% 23% 38,253 2,164 21% 904 26,625 32% CMS Flash Logic IC 21,484 21,312 21,018 21,771 26% 20,121 19,993 18,692 38% 37% 37% 33% 42% 38% 42% 37% 1Q26 vs. 1Q25 (YoY) 35% 34% 35% 30% 37% 32% 47% 13,065 38% 35%
Slide 7: Revenue and Gross Margin by Products
Revenue and Gross Margin by Products NT$M Memory NT$M Logic IC 57% 51% 43% 42% 41% 39% 30% 29,923 37% 38% 35% 36% 34% 34% 21% 15% 18% 12% 10% 40% 19,172 14,132 12,948 12,941 12,824 52% 11,283 11,018 11,190 53% 8,417 8,171 7,905 8,305 7,884 58% 62% 56% 60% 7,193 7,747 7,217 6,981 54% 65% 57% 48% 46%
Slide 8: Memory Business Quarterly Highlights
Memory Business Quarterly Highlights (In NT$ millions unless otherwise noted) 1Q26 4Q25 QoQ 1Q25 YoY Net Sales 29,923 19,172 +56.1% 11,190 +167.4% Gross Profit 16,938 8,298 +104.1% 1,172 +1,345.8% Gross Margin 56.6% 43.3% +13 ppts 10.5% +46 ppts Operating Expenses 4,231 3,554 +19.1% 2,507 +68.8% Ope
Slide 9: Balance Sheet - Consolidated
Balance Sheet - Consolidated (In NT$ millions unless otherwise noted) 03.31.2026 12.31.2025 03.31.2025 Cash & Cash Equivalents 25,521 11% 15,734 8% 18,378 10% Hedging Financial Assets 23,137 10% - - - - Accounts Receivable 22,015 10% 16,071 8% 11,855 7% Inventories 25,232 11% 25,758 13% 23,540 13% I
Slide 10: Statement of Cash Flow - Consolidated
Statement of Cash Flow - Consolidated (In NT$ millions unless otherwise noted) 1Q26 4Q25 1Q25 Cash Flow from Operating Activities 12,366 5,516 393 Depreciation & Amortization 3,089 3,092 3,255 Cash Flow from Investing Activities (25,657) (2,167) (2,045) Hedging Financial Assets (23,166) - - CAPEX (2
Slide 11: Operating Expenses - Consolidated
Operating Expenses - Consolidated 31% 30% 29% 29% 30% 28% 28% 26% 21% NT$M 7,865 7,054 837 6,463 5,949 5,974 6,087 6,058 809 5,748 5,822 788 2,312 791 799 836 803 782 783 2,217 2,253 2,129 2,151 2,066 2,261 2,138 2,176 1,801 1,381 998 1,040 985 994 974 885 912 2,646 2,915 1,990 2,038 1,978 2,017 2,2
Slide 12: Logic Business Performance - Nuvoton Income Statement
Logic Business Performance - Nuvoton Income Statement (In NT$ millions unless otherwise noted) 1Q26 4Q25 QoQ 1Q25 YoY Net Sales 7,988 7,040 +13.5% 8,364 -4.5% Gross Profit 3,142 2,413 +30.2% 3,451 -8.9% Gross Margin 39.3% 34.3% +5 ppts 41.3% -2 ppts Operating Expenses 3,254 3,097 +5.1% 3,177 +2.4% O
Slide 13: Logic Business Performance - Nuvoton Balance Sheets
Logic Business Performance - Nuvoton Balance Sheets (In NT$ millions unless otherwise noted) 03.31.2026 12.31.2025 03.31.2025 Cash & Cash Equivalents 7,069 23% 7,203 24% 10,436 34% Accounts Receivable 4,678 15% 3,964 13% 4,983 16% Inventories 6,334 21% 6,217 21% 7,281 24% Long-term Investments 2,757
Slide 14: Corporate Value
Corporate Value EPS EBITDA NT Dollar NT$M 42% 3.41 3.23 2.25 30% 29% 21% 0.88 0.14 18% (0.29) 16% 30,085 27,690 2021 2022 2023 2024 2025 1Q26 YTD BVPS 18,680 15,005 16,127 NT Dollar 12,151 25.92 23.66 23.99 20.71 22.08 20.37 2021 2022 2023 2024 2025 1Q26 YTD 2021 2022 2023 2024 2025 1Q26 YTD EBITDA
Slide 15: Memory CAPEX
Memory CAPEX 40.8 40.5 (NT$ B) 15.5 12.7 5.5 2022 2023 2024 2025 2026(E) Paid Estimated Cash Basis, as of May 5th, 2026 • 1Q26 CAPEX was NT$2.7B • 2026 CAPEX is estimated approx. NT$40.5B, in which WFE CAPEX accounts for ~95% 15
Slide 16: Business Recap & Outlook
Business Recap & Outlook Wy © , By’ " a” a Ai » . HN ‘ip, /, fe | ane ii fh "
Slide 17: Memory Revenue Results
Memory Revenue Results QoQ YoY 1Q26 vs. 4Q25 1Q26 vs. 1Q25 CMS CMS Revenue +93% +276% Bit Shipment Increased mid-twenties% Increased low-seventies% Blended ASP(US$) Increased low-fifties% Increased more than doubled Flash Flash Revenue +23% +89% Bit Shipment Decreased low-teens% Increased high-teens
Slide 18: Memory Business Revenue Breakdown by Application
Memory Business Revenue Breakdown by Application Car & Industrial Communication NT$M QoQ +66% NT$M QoQ +74% 10,000 10,000 Car & Ind. Comm. 30% 27% 8,000 8,000 1Q26 6,000 6,000 Computer 4,000 4,000 Consumer 13% 30% 2,000 2,000 0 0 4Q25 1Q26 4Q25 1Q26 Consumer Computer QoQ +58% QoQ +13% NT$M NT$M Comm
Slide 19: Flash Business
Flash Business ❑ High-density products continued to gain share in total shipments, reflecting robust demand for both NOR and SLC NAND ❑ From 2Q26 onward, 24nm SLC NAND to contribute meaningful revenue sequentially ❑ World’s No.1 NOR Flash supplier, aiming dual leadership in both NOR and SLC NAND 1%
Slide 20: CMS Business
CMS Business ❑ Revenue in 1Q26 increased by ~93% QoQ, supported by strong demand and enhanced product mix ❑ Bit shipments in 1Q26 increased by ~25% QoQ, driven by continued growth in DDR4 / LPDDR4 shipments ❑ 20nm revenue continued to rise, reflecting stronger traction in higher-value applications 6
Slide 21: Market and Business Outlook (1)
Market and Business Outlook (1) ❑ Code Storage Flash ❖ Tight supply persists, with particularly strong end demand for high-density NOR supporting a continued favorable pricing trend into 1H26 and beyond ❖ SLC NAND shortage has been severe, reinforcing a sustained upward pricing trend beyond 2026 ❖ S
Slide 22: Market and Business Outlook (2)
Market and Business Outlook (2) ❑ Overall Market ❖ Geopolitical conflicts have a manageable impact on raw materials supply and production continuity so far, but energy and manufacturing costs increase may be inevitable ❖ Strong AI-driven demand is crowding out supply for non-AI applications, leading
Slide 23: Excellence & Forward
Mae os) » “yg ma) ’ tf PRY | Cals f j Excellence & Forward
Slide 24: Winbond Focus: Code Storage Flash Trend
Code Storage Flash Trend UFS OS with multiple applications, execute in DRAM 64GB ~ 512GB • Not fast boot, Boot from eMMC, UFS. • Fast Boot by NOR, then boot Image from eMMC/UFS. eMMC eMMC < 32GB 32GB ~ 256GB Leading NAND vendors EoL 2D NAND • Driving low-density eMMC demand toward QspiNAND • Seeking
Slide 25: 2025 NAND Flash Market Share
2025 NAND Flash Market Share Micron 13% SanDisk 12% Kioxia Winbond 36% Macronix 15% YMTC 23% 9% 2025 Revenue Other 2D NAND 2025 Revenue USD 72.9B Vendors USD 0.6B 1% GigaDevice 9% SK hynix Others ISSI 20% 29% 3% Samsung 30% Source: Omdia Mobile and Embedded Memory Market Tracker – 1Q26 25
Slide 26: 2025 Flash Market Share
2025 Flash Market Share NOR Flash SLC NAND Flash #1 #3 GigaDevice Kioxia 17% 20% Winbond Micron 23% 21% 2025 Revenue Macronix 2025 Revenue Winbond USD 3.4B 17% Others USD 1.5B 15% 4% Dosilicon Others 6% 16% Infineon GigaDevice SkyHigh 11% 14% Puya Micron 9% Macronix 7% 9% 11% Source: Omdia Mobile an
Slide 27: Winbond NAND Flash Shipment
Winbond NAND Flash Shipment (T Bits) Shipping Bits 1,000,000 60% 42% > 40% 35% 40% 800,000 > 20% 15% 20% 600,000 3% 0% 400,000 -20% 200,000 -40% 0 -60% 2022 2023 2024 2025 2026(E) 2027(E) < 2Gb ≥ 2Gb Bit Growth 27
Slide 28: mi) pst Y
mi) pst 1 Y a Vind 4’ y mf
Slide 29: Thank you
Thank you mam Winbond