Slide 1: First Quarter 2026 Earnings Release
First Quarter 2026 Earnings Release 29 April, 2026 ASE Technology Holding
Slide 2: Safe Harbor Notice
Safe Harbor Notice This presentation contains "forward - looking statements" within the meaning of Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended. These statements are made under the “safe harbor”
Slide 3: Consolidated Statements of Income Quarterly Comparison
Consolidated Statements of Income Quarterly Comparison (Unaudited) 3 (NT$ million) Q1 / 2026 % Q4 / 2025 % Q1 / 2025 % QoQ YoY Net Revenues: ATM 111,623 64.3% 108,666 61.1% 85,606 57.8% 3% 30% EMS 61,361 35.3% 68,555 38.5% 61,860 41.7% -10% -1% Others 678 0.4% 694 0.4% 687 0.5% -2% -1% Total Net Rev
Slide 4: Consolidated Operations
Consolidated Operations (Unaudited) 4 85,606 91,648 99,393 108,666 111,623 61,860 58,374 68,405 68,555 61,361 16.8% 17.0% 17.1% 19.5% 20.1% 6.5% 6.8% 7.8% 9.9% 10.1% 0% 10% 20% 30% 0 30,000 60,000 90,000 120,000 150,000 180,000 Q1/25 Q2/25 Q3/25 Q4/25 Q1/26 NT$ million ATM Revenue EMS Revenue Other
Slide 5: ATM Statements of Income Quarterly Comparison
ATM Statements of Income Quarterly Comparison (Unaudited) 5 (NT$ million) Q1 / 2026 % Q4 / 2025 % Q1 / 2025 % QoQ YoY Net Revenues: Packaging 89,673 79.8% 87,397 79.7% 69,360 80.0% 3% 29% Testing 21,041 18.7% 20,863 19.0% 16,004 18.5% 1% 31% Direct Material 1,621 1.4% 1,352 1.2% 1,219 1.4% 20% 33% O
Slide 6: ATM Operations
ATM Operations (Unaudited) 6 19,611 20,248 22,697 28,824 29,198 86,668 92,565 100,289 109,707 112,434 22.6% 21.9% 22.6% 26.3% 26.0% 0% 10% 20% 30% 40% 0 20,000 40,000 60,000 80,000 100,000 120,000 Q1/25 Q2/25 Q3/25 Q4/25 Q1/26 NT$ million Gross Profit Gross Margin Revenue
Slide 7: ATM Revenues by Application
ATM Revenues by Application (Unaudited) 7 48% 46% 45% 45% 43% 22% 24% 25% 25% 27% 30% 30% 30% 30% 30% 0% 20% 40% 60% 80% 100% Q1/25 Q2/25 Q3/25 Q4/25 Q1/26 Communication Computing Automotive, Consumer & Others
Slide 8: ATM Revenues by Type
ATM Revenues by Type (Unaudited) 8 46% 47% 48% 49% 49% 28% 28% 26% 24% 24% 6% 5% 6% 7% 7% 18% 18% 18% 19% 19% 2% 2% 2% 1% 1% 0% 20% 40% 60% 80% 100% Q1/25 Q2/25 Q3/25 Q4/25 Q1/26 Material Testing Others Wirebonding Bump/FC/WLP /SiP
Slide 9: EMS Operations Quarterly Comparison
EMS Operations Quarterly Comparison (unaudited) (NT$ million) Q1 / 2026 % Q4 / 2025 % Q1 / 2025 % QoQ YoY EMS Net Revenues 61,875 100.0% 68,991 100.0% 62,295 100.0% -10% -1% Gross Profit 5,894 9.5% 6,239 9.0% 5,528 8.9% -6% 7% Operating Income (Loss) 1,906 3.1% 1,959 2.8% 1,608 2.6% -3% 19% 9 33% 33
Slide 10: Key Balance Sheet Items & Indices
Key Balance Sheet Items & Indices (Unaudited) 10 *: EBITDA stands for net income or loss before interest, taxes, depreciation, amortization, impairment and investment gain or lo ss as well as other items. (NT$ million) Mar. 31, 2026 Dec. 31, 2025 Cash and cash equivalent $87,811 $92,469 Financial as
Slide 11: Equipment Capital Expenditures vs. EBITDA
Equipment Capital Expenditures vs. EBITDA (Unaudited) 11 892 992 779 733 1,003 843 879 1,095 1,242 1,210 0 200 400 600 800 1,000 1,200 1,400 Q1/25 Q2/25 Q3/25 Q4/25 Q1/26 US$ million Capex EBITDA
Slide 12: Second Quarter 2026 Outlook (1/2)
Second Quarter 2026 Outlook (1/2) Based on our current business outlook and exchange rate assumptions of 1 US dollar to 31 .8 NT dollars (versus 31.5 in 1 st quarter 2026) , management projects overall performance for the second quarter of 2026 to be as follows: Consolidated • In NT dollar terms,
Slide 13: Second Quarter 2026 Outlook (2/2)
Second Quarter 2026 Outlook (2/2) ATM • In NT dollar terms, our ATM 2 nd quarter revenue should grow by 9 to 11 percent quarter over quarter; • Our ATM 2 nd quarter gross margin should be between 26% to 27%. EMS • In NT dollar terms, our EMS 2 nd quarter revenue should grow at least 10 percent y
Slide 14: Thank you
Thank you
Slide 15: Consolidated Statements of Comprehensive Income
Appendix 1 Consolidated Statements of Comprehensive Income (Unaudited) 15 (NT$ thousand) Q1/ 2025 1&2 Q2/ 2025 1&2 Q3/ 2025 1&2 Q4/ 2025 1&2 FY/ 2025 1&2 Q1/ 2026 1&2 Revenues 148,153,262 150,750,323 168,568,888 177,915,165 645,387,638 173,662,152 COGS 123,260,526 125,062,803 139,692,147 143,179,289