ASE Technology vs ChipMOS Technologies

Both are primarily Outsourced Assembly & Test companies. ChipMOS Technologies has a tracked market cap of $2.8B; ASE Technology is currently unpriced in the dataset. ASE Technology reports higher tracked revenue ($20.6B vs $753M).

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Side-by-side

ASE TechnologyChipMOS Technologies
Market capUnpriced$2.8B
Revenue$20.6B (FY2025)$753M (FY2025)
Primary segmentOutsourced Assembly & TestOutsourced Assembly & Test
Market positionleaderniche
CountryTaiwanTaiwan
Tracked suppliers202
Tracked customers728
Chokepoint / criticality81/10050/100

Market caps/revenue from the wafergraph dataset · data as of 2026-10-09. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.

How ASE Technology and ChipMOS Technologies compare

  • Revenue: ASE Technology reports higher tracked revenue.
  • Supply-chain criticality: ASE Technology has the higher chokepoint score (81/100 vs 50/100).
  • Footprint: ASE Technology (Taiwan) vs ChipMOS Technologies (Taiwan).

Company hubs

ASE Technology · ChipMOS Technologies · OSAT segment

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Cite as: wafergraph, “ASE Technology vs ChipMOS Technologies”, https://wafergraph.com/compare/ase-vs-chipmos (data as of 2026-10-09).

Frequently asked questions3
Is ASE Technology bigger than ChipMOS Technologies?
By tracked revenue, ASE Technology is larger ($20.6B vs $753M).
What's the difference between ASE Technology and ChipMOS Technologies?
ASE Technology is a leader in Outsourced Assembly & Test based in Taiwan; ChipMOS Technologies is a niche in Outsourced Assembly & Test based in Taiwan. Both operate in the OSAT segment.
Who are ASE Technology's and ChipMOS Technologies's suppliers?
wafergraph tracks 20 suppliers for ASE Technology and 2 for ChipMOS Technologies — ASE Technology's include Tokyo Electron, Advantest, Teradyne; ChipMOS Technologies's include Advantest, Kulicke & Soffa.