Amkor Technology vs King Yuan Electronics (KYEC)

Both are primarily Outsourced Assembly & Test companies. Amkor Technology is larger by market cap ($13.9B vs $11.9B). Amkor Technology reports higher tracked revenue ($6.7B vs $1.1B).

Shared segment: OSAT.

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Side-by-side

Amkor TechnologyKing Yuan Electronics (KYEC)
Market cap$13.9B$11.9B
Revenue$6.7B (FY2025)$1.1B (FY2025)
Primary segmentOutsourced Assembly & TestOutsourced Assembly & Test
Market positionmajormajor
CountryUnited StatesTaiwan
Tracked suppliers160
Tracked customers67
Chokepoint / criticality68/10068/100

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 Amkor Technology and King Yuan Electronics (KYEC) compare

  • Size: Amkor Technology is the larger company by market cap.
  • Revenue: Amkor Technology reports higher tracked revenue.
  • Supply-chain criticality: Both companies have the same chokepoint score (68/100).
  • Footprint: Amkor Technology (United States) vs King Yuan Electronics (KYEC) (Taiwan).

Company hubs

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

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

Frequently asked questions3
Is Amkor Technology bigger than King Yuan Electronics (KYEC)?
Amkor Technology is larger by market cap ($13.9B vs $11.9B).
What's the difference between Amkor Technology and King Yuan Electronics (KYEC)?
Amkor Technology is a major in Outsourced Assembly & Test based in United States; King Yuan Electronics (KYEC) is a major in Outsourced Assembly & Test based in Taiwan. Both operate in the OSAT segment.
Who are Amkor Technology's and King Yuan Electronics (KYEC)'s suppliers?
wafergraph tracks 16 suppliers for Amkor Technology and 0 for King Yuan Electronics (KYEC) — Amkor Technology's include Teradyne, DISCO, BE Semiconductor Industries.