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Johnson Matthey INC.

1397 King Rd, West Chester, PA 19380

ACTIVELAST SEEN IN FEDERAL DATA AUG 2026 · 3 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Johnson Matthey INC.
Their homepage, crawled JUL 2026

What they make

All Other Miscellaneous Chemical Product and Preparation Manufacturing325998

The company works with platinum group metals and provides related chemicals or science and technologies including biocatalysis and catalyst screening text company and refining/recycling. It serves industries such as data centres, gas turbines, mining, mobile technology, and life sciences, and also develops solutions for hydrogen, sustainable aviation fuels, and emissions control. The company was acquired by Honeywell Technologies or the company also works with ammonia, biorenewables, and petrochemicals.

SUMMARIZED FROM THE COMPANY’S OWN WEBSITE

CAREERS
Careers page — seen SEP 8, 2026

Where it is

40.02159, -75.58082 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS

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Every listed plant in Chester County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Cookson Matthey/west Chester
West Chester, PA
UNVERIFIED325100
WHERE THIS RECORD COMES FROM — 3 FEDERAL SOURCES, 9 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

SourceEvidenceFirst seenLast seen
COMPANY SITEOPERATINGJUL 2026AUG 2026
SAM GOVOPERATINGJUN 2026JUN 2026
OSHA ITAOPERATINGDEC 2025DEC 2025
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1SAM GOVJUN 2026
CAGE CODESAM GOVJUN 2026
CITYSAM GOVJUN 2026
EMPLOYEE BANDOSHA ITADEC 2025
GEOMCENSUS GEOCODERJUL 2026
NAMESAM GOVJUN 2026
REGISTRATION EXPIRATIONSAM GOVJUN 2026
STATESAM GOVJUN 2026
WEBSITESAM GOVJUN 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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