Slide 1: 2Q25 Investor Conference
2Q25 Investor Conference Aug. 6th, 2025 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 James Chen - President 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) 2Q25 1Q25 QoQ 2Q24 YoY Net Sales 21,018 19,993 +5.1% 21,484 -2.2% Gross Profit 4,763 5,122 -7.0% 7,112 -33.0% Gross Margin 22.7% 25.6% -3 ppts 33.1% -10 ppts Operating Expenses 6,058 6,087 -0.5% 5,949 +1.8% Ope
Slide 6: Revenue by Products - Consolidated
Revenue by Products - Consolidated 31% 32% 33% 2Q25 vs. 1Q25 (QoQ) 28% 28% 29% 27% 26% 23% 829 806 21,484 21,312 21,018 NT$M 20,121 19,506 19,993 18,811 19,174 18,692 38% 37% 37% -558 42% 42% 45% 43% 38% CMS Flash Logic IC 47% 35% 37% 34% 2Q25 vs. 2Q24 (YoY) 30% 32% 34% 32% 38% 33% 27% 194 22% 26% 2
Slide 7: Revenue and Gross Margin by Products
Revenue and Gross Margin by Products NT$M Memory NT$M Logic IC 30% 40% 42% 40% 42% 38% 41% 34% 37% 35% 20% 21% 21% 16% 15% 18% 10% 12% 12,948 12,941 12,824 11,283 11,018 11,190 10,132 10,349 9,453 58% 62% 56% 8,859 8,871 54% 57% 8,318 8,417 8,171 8,305 7,905 7,747 59% 65% 7,193 65% 66% 46% 42% 38% 4
Slide 8: Memory Business Quarterly Highlights
Memory Business Quarterly Highlights (In NT$ millions unless otherwise noted) 2Q25 1Q25 QoQ 2Q24 YoY Net Sales 12,824 11,190 +14.6% 12,948 -1.0% Gross Profit 1,547 1,172 +32.1% 3,924 -60.6% Gross Margin 12.1% 10.5% +2 ppts 30.3% -18 ppts Operating Expenses 2,644 2,507 +5.5% 2,590 +2.1% Operating Inc
Slide 9: Balance Sheet - Consolidated
Balance Sheet - Consolidated (In NT$ millions unless otherwise noted) 06.30.2025 03.31.2025 06.30.2024 Cash & Cash Equivalents 20,317 11% 18,378 10% 13,409 7% Accounts Receivable 11,855 7% 11,855 7% 11,160 6% Inventories 21,629 12% 23,540 13% 22,434 12% Long-term Investments 18,400 10% 18,860 10% 25
Slide 10: Statement of Cash Flow - Consolidated
Statement of Cash Flow - Consolidated (In NT$ millions unless otherwise noted) 2Q25 1Q25 2Q24 Cash Flow from Operating Activities 2,437 393 4,853 Depreciation & Amortization 3,210 3,255 3,196 Cash Flow from Investing Activities (1,824) (2,045) (2,135) CAPEX (1,412) (1,582) (2,347) Cash Flow from Fin
Slide 11: Operating Expenses - Consolidated
Operating Expenses - Consolidated 33% 31% 31% 31% 30% 29% 28% 28% 29% NT$M 6,204 6,087 6,058 5,978 5,884 5,949 5,974 5,822 5,748 853 799 836 803 839 802 791 783 782 SG&A 938 974 885 917 971 912 1,040 985 994 2,219 2,138 2,170 2,202 2,176 2,129 2,151 2,066 2,261 R&D 2,194 2,051 1,909 1,879 1,990 2,03
Slide 12: Logic Business Performance - Nuvoton Income Statement
Logic Business Performance - Nuvoton Income Statement (In NT$ millions unless otherwise noted) 2Q25 1Q25 QoQ 2Q24 YoY Net Sales 7,816 8,364 -6.6% 8,228 -5.0% Gross Profit 2,728 3,451 -21.0% 2,821 -3.3% Gross Margin 34.9% 41.3% -6 ppts 34.3% +1 ppts Operating Expenses 3,030 3,177 -4.7% 3,013 +0.6% Op
Slide 13: Logic Business Performance - Nuvoton Balance Sheets
Logic Business Performance - Nuvoton Balance Sheets (In NT$ millions unless otherwise noted) 06.30.2025 03.31.2025 06.30.2024 Cash & Cash Equivalents 9,685 29% 10,436 28% 7,144 23% Accounts Receivable 4,353 13% 4,983 14% 4,015 13% Inventories 6,537 19% 7,281 20% 6,160 20% Long-term Investments 2,636
Slide 14: Corporate Value
Corporate Value EPS EBITDA NT Dollar NT$M 3.41 3.23 30% 29% 19% 18% 16% 0.33 10% (0.29) 0.14 (0.53) 30,085 2020 2021 2022 2023 2024 1H25 27,690 BVPS NT Dollar 15,005 11,571 12,151 23.66 22.08 20.71 20.37 4,176 19.48 16.44 2020 2021 2022 2023 2024 1H25 2020 2021 2022 2023 2024 1H25 EBITDA EBITDA to R
Slide 15: Memory CAPEX
Memory CAPEX 40.8 (NT$ B) 15.5 12.7 9.3 4.8 2021 2022 2023 2024 2025(E) Paid Estimated Cash Basis, as of August 6th, 2025 • 1H25 CAPEX was NT$2.5B • 2025 CAPEX is estimated approx. NT$4.8B, in which WFE CAPEX accounts for ~70% 15
Slide 16: Business Recap & Outlook
Business Recap & Outlook Wy © , By’ " a” a Ai » . HN ‘ip, /, fe | ane ii fh "
Slide 17: Memory Revenue Results
Memory Revenue Results QoQ YoY 2Q25 vs. 1Q25 2Q25 vs. 2Q24 CMS CMS Revenue +17.4% +3.6% Bit Shipment Increased mid-twenties% Increased approx. forties% Blended ASP(US$) Flat Decreased low-twenties% Flash Flash Revenue +12.6% -4.2% Bit Shipment Increased approx. twenties% Increased high-single digit%
Slide 18: Memory Business Revenue Breakdown by Application
Memory Business Revenue Breakdown by Application Car & Industrial Communication QoQ +23% QoQ +8% Car & Ind. Comm. NT$M NT$M 27% 25% 4,000 4,000 2Q25 3,000 3,000 Computer Consumer 20% 2,000 2,000 28% 1,000 1,000 0 0 1Q25 2Q25 1Q25 2Q25 Consumer Computer QoQ +18% QoQ +10% Car & Ind. Comm. NT$M NT$M 25
Slide 19: Flash Business
Flash Business ❑ Rev in 2Q25 increased by 13% QoQ but decreased by 4% YoY ❑ Rev contribution from 45nm NOR Flash will continue to grow, supported by strong design-ins in wearable applications ❑ Stably leading as WW No.1 NOR Flash supplier 6% 8% 10% 7% 8% 4% 12% 3% 3% 11% 8% 12% 15% 13% 6% 8% 4% 11%
Slide 20: CMS Business
CMS Business ❑ Rev in 2Q25 increased by 17% QoQ and 4% YoY; record high in past 2 years ❑ Bit shipment in 2Q25 increased by approx. forties% YoY ❑ Rev contribution from 20nm continued to rise in 2Q25, driven by DDR4 growth 2% 3% 5% 21% 20% 26% 18% 15% 15% 16% 6% 19% 7% 17% 4% 49% 54% 47% 50% 51% 56%
Slide 21: Market and Business Outlook (1)
Market and Business Outlook (1) ❑ Code Storage Flash ❖ An expected supply-demand balance for NOR in 2H25, with a mild price recovery ❖ Supply for SLC NAND is anticipated to further tighten in 2H25, leading to a sustained price increase ❖ Growing demand: Automotive, Wearable, Server; Healthy demand:
Slide 22: Market and Business Outlook (2)
Market and Business Outlook (2) ❑ Overall Market ❖ The ongoing uncertainty in global tariffs and exchange rates is still challenging ❖ The memory industry is experiencing an upward cycle ❖ Edge AI and Device AI markets are expecting sustainable growth, with more commercial applications rolling out ❑
Slide 23: Excellence and Forward - Digital Transformation
Excellence and Forward - Digital Transformation 23
Slide 24: Digital Transformation
Digital Transformation Accelerating Growth Through Digital Excellence Vision & Mission Organization & Execution • Leverage digital technology • Advanced technology integration to boost productivity to enhance productivity and performance • Strengthen core competencies • Data and AI adoption to meet
Slide 25: 3 Pillars of Digital Transformation Strategy
3 Pillars of Digital Transformation Strategy People Platform Project Digital Literacy Development Enterprise Data Warehouse Manufacturing & Backend Operation 。 Data Management & Analysis Business Intelligence FAB & Yield Engineering 。 Machine Learning Microservice Platform Product Engi
Slide 26: Performance and Achievements
Performance and Achievements Winbond Digital Transformation Committees Launched in 2020 to Drive Change Manpower Project Improvement • 700+ transformation projects completed • 160+ per year • 150+ best practice cases shared Equipment Productivity • 10% improved ESG • 15,600 CO2e tons Material Cost S
Slide 27: Carbon Accounting, CRM and SCM Transformation
Carbon Accounting, CRM and SCM Transformation Carbon Accounting: Sustainability-Driven Digital Innovation • Pioneer in modular carbon accounting for governance and competitiveness • Transparent carbon footprint data builds trust and market edge • Recognized as a preferred partner by low-carbon-focus
Slide 28: Wastewater Treatment and Chemical Dosing Optimization
Wastewater Treatment and Chemical Dosing Optimization Continuous Improvement Through Machine Learning Wastewater Treatment System Chemical Carbon with new chemical and data science As Was to optimize chemical dosing CaCl2 PAC 2,665 4,257 efficiency tons/y tonCO2e/y 4,677 tons/y 1,488 tons/y HF waste
Slide 29: Renewable Energy-Manufactured Products
Renewable Energy-Manufactured Products 17,655 29
Slide 30: 2024 Customer Satisfaction Survey
2024 Customer Satisfaction Survey Third-party Qualitative and Quantitative Research, Followed by Action Planning Workshops Winbond Outperforms Competitors Order Handling Performance 106 in Key Criteria 54 Strong sales service 45 performance is the main 39 reason why Winbond 96 Experience Strength Sc
Slide 31: mi) pst Y
mi) pst 1 Y a Vind 4’ y mf
Slide 32: Thank you
Thank you mam Winbond