Polyplastics Co., Ltd. (Daicel)
HQ JP25% share
Major POM/acetal maker (Duracon); opened a China POM plant in Nov 2024.
manufactured · input
Liquid Crystal Polymer (LCP)
High-performance thermoplastic with exceptional high-frequency dielectric and dimensional stability; the resin of choice for 5G/mmWave antenna modules, fine-pitch electronic connectors, and flexible printed-circuit films in smartphones and tablets. Supplied by a handful of producers (Polyplastics/Laperos, Celanese/Vectra-Zenite, Sumitomo).
3
Source countries
6
Companies
1
Goods affected
0
Claims on record
What depends on it
Goods that need this input
1 essential American goods rely on liquid crystal polymer (lcp) somewhere upstream in their supply chain.
Where it comes from
Source countries
Share of global supply, by country.
| Country | Share of supply |
|---|---|
| JPJapan | 50% |
| USUnited States | 29% |
| CNChina | 20% |
Who makes it
Supplier companies
6 companies produce liquid crystal polymer (lcp).
Celanese Corporation(CE)
HQ US20% share
US specialty chemical company; world's largest vinyl acetate monomer (VAM) producer (~18% global share, >1,565 kt/yr capacity across 7 plants); also major VAE emulsion supplier for architectural paint binders.
Sumitomo Chemical Co., Ltd.
HQ JP15% share
Sumitomo Chemical Co. Ltd. (Tokyo Japan; TYO: 4005; Sumitomo Group); #3 global DL-methionine producer at ~13% market share via Niihama Ehime Works (Ehime Prefecture Shikoku Japan). After a major expansion completed October 2018 (+100,000 MT/year new line), the Niihama facility reached ~250,000 MT/year — one of the world's largest single methionine plants. Also produces crop protection chemicals (agrichemicals), petrochemicals, and pharmaceuticals. The MetiPEARL / liquid methionine brand competes directly with Evonik MetAMINO and Adisseo Rhodimet in Asian poultry markets. Japan is the only significant Japanese methionine production base globally.
Toray Industries
HQ JP10% share
World's largest carbon-fiber maker (PAN-based); aerospace, sporting goods, wind, automotive.
Syensqo (formerly Solvay Specialty Chemicals)(SYENS.BR)
HQ BE8% share
Specialty chemicals company spun off from Solvay SA on December 9, 2023; inherited Solvay's specialty chemicals portfolio including the Aroma Performance business unit (vanillin + hydroquinone). Self-described 'world's largest integrated producer of synthetic and natural vanillin.' Holds ~18% global vanillin market share. Filed 2024 US antidumping/countervailing duty petitions against Chinese vanillin imports. Announced intent to divest the Aroma Performance unit (no buyer named as of early 2026). Saint-Fons, France plant mothballed May 2024 due to Chinese competition; restarting late 2025 after EU imposed 131% anti-dumping duties on Chinese vanillin.
Kingfa Sci. & Tech. Co., Ltd.
HQ CN5% share
China’s largest modified-plastics maker; LCP and engineering-plastics compounds, localizing high-performance polymers.