Mitsui Chemicals, Inc. vs Taiwan Mask Corporation

Both are primarily Photomasks & Mask Blanks companies. Mitsui Chemicals, Inc. is larger by market cap ($4.8B vs $520M). Mitsui Chemicals, Inc. reports higher tracked revenue ($10.6B vs $192M).

Shared segment: Materials.

Track the chain

What moved in the semiconductor supply chain — This Week in the Chain, the free weekly wafergraph briefing.

Subscribe to the free weekly briefing →

Free · no login · 615 companies, updated weekly

Side-by-side

Mitsui Chemicals, Inc.Taiwan Mask Corporation
Market cap$4.8B$520M
Revenue$10.6B (FY2026)$192M (FY2021)
Primary segmentPhotomasks & Mask BlanksPhotomasks & Mask Blanks
Market positionleaderniche
CountryJapanTaiwan
Tracked suppliers10
Tracked customers07
Chokepoint / criticality0/10050/100

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 Mitsui Chemicals, Inc. and Taiwan Mask Corporation compare

  • Size: Mitsui Chemicals, Inc. is the larger company by market cap.
  • Revenue: Mitsui Chemicals, Inc. reports higher tracked revenue.
  • Supply-chain criticality: Taiwan Mask Corporation has the higher chokepoint score (50/100 vs 0/100).
  • Footprint: Mitsui Chemicals, Inc. (Japan) vs Taiwan Mask Corporation (Taiwan).

Company hubs

Mitsui Chemicals, Inc. · Taiwan Mask Corporation · Materials segment

Open the interactive comparison tool →

Cite as: wafergraph, “Mitsui Chemicals, Inc. vs Taiwan Mask Corporation”, https://wafergraph.com/compare/mitsui_chemicals-vs-taiwan_mask (data as of 2026-10-04).

Frequently asked questions3
Is Mitsui Chemicals, Inc. bigger than Taiwan Mask Corporation?
Mitsui Chemicals, Inc. is larger by market cap ($4.8B vs $520M).
What's the difference between Mitsui Chemicals, Inc. and Taiwan Mask Corporation?
Mitsui Chemicals, Inc. is a leader in Photomasks & Mask Blanks based in Japan; Taiwan Mask Corporation is a niche in Photomasks & Mask Blanks based in Taiwan. Both operate in the Materials segment.
Who are Mitsui Chemicals, Inc.'s and Taiwan Mask Corporation's suppliers?
wafergraph tracks 1 suppliers for Mitsui Chemicals, Inc. and 0 for Taiwan Mask Corporation.