ASE Technology vs King Yuan Electronics (KYEC)

Both are primarily Outsourced Assembly & Test companies. ASE Technology is larger by market cap ($123.5B vs $11.9B). ASE Technology reports higher tracked revenue ($20.6B vs $1.1B).

Shared segment: OSAT.

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Side-by-side

ASE TechnologyKing Yuan Electronics (KYEC)
Market cap$123.5B$11.9B
Revenue$20.6B (FY2025)$1.1B (FY2025)
Primary segmentOutsourced Assembly & TestOutsourced Assembly & Test
Market positionleadermajor
CountryTaiwanTaiwan
Tracked suppliers200
Tracked customers727
Chokepoint / criticality81/10068/100

Market caps/revenue from the wafergraph dataset · data as of 2026-10-04. Criticality is a graph-derived chokepoint score (0–100). Coverage is partial; "Unpriced" means no reliable market cap.

How ASE Technology and King Yuan Electronics (KYEC) compare

  • Size: ASE Technology is the larger company by market cap.
  • Revenue: ASE Technology reports higher tracked revenue.
  • Supply-chain criticality: ASE Technology has the higher chokepoint score (81/100 vs 68/100).
  • Footprint: ASE Technology (Taiwan) vs King Yuan Electronics (KYEC) (Taiwan).

Company hubs

ASE Technology · King Yuan Electronics (KYEC) · OSAT segment

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Cite as: wafergraph, “ASE Technology vs King Yuan Electronics (KYEC)”, https://wafergraph.com/compare/ase-vs-kyec (data as of 2026-10-04).

Frequently asked questions3
Is ASE Technology bigger than King Yuan Electronics (KYEC)?
ASE Technology is larger by market cap ($123.5B vs $11.9B).
What's the difference between ASE Technology and King Yuan Electronics (KYEC)?
ASE Technology is a leader in Outsourced Assembly & Test based in Taiwan; King Yuan Electronics (KYEC) is a major in Outsourced Assembly & Test based in Taiwan. Both operate in the OSAT segment.
Who are ASE Technology's and King Yuan Electronics (KYEC)'s suppliers?
wafergraph tracks 20 suppliers for ASE Technology and 0 for King Yuan Electronics (KYEC) — ASE Technology's include Tokyo Electron, Advantest, Teradyne.