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Johnson Matthey plc is a British multinational speciality chemicals and
sustainable Sustainability is a social goal for people to co-exist on Earth over a long period of time. Definitions of this term are disputed and have varied with literature, context, and time. Sustainability usually has three dimensions (or pillars): env ...
technologies company headquartered in
London London is the Capital city, capital and List of urban areas in the United Kingdom, largest city of both England and the United Kingdom, with a population of in . London metropolitan area, Its wider metropolitan area is the largest in Wester ...
, England. It is listed on the
London Stock Exchange The London Stock Exchange (LSE) is a stock exchange based in London, England. the total market value of all companies trading on the LSE stood at US$3.42 trillion. Its current premises are situated in Paternoster Square close to St Paul's Cath ...
and is a constituent of the
FTSE 250 Index The Financial Times Stock Exchange 250 Index, also called the FTSE 250 Index, FTSE 250, or, informally, the "Footsie 250" , is a stock market index that consists of the 101st to the 350th mid-cap blue chip companies listed on the London Stock ...
.


History


Early years

Johnson Matthey traces its origins to 1817, when Percival Norton Johnson set up business as a gold assayer in London. In 1851 George Matthey joined the business and its name was changed to Johnson & Matthey. The following year the firm was appointed official assayer and refiner to the
Bank of England The Bank of England is the central bank of the United Kingdom and the model on which most modern central banks have been based. Established in 1694 to act as the Kingdom of England, English Government's banker and debt manager, and still one ...
. The company had branches in the cities of
Birmingham Birmingham ( ) is a City status in the United Kingdom, city and metropolitan borough in the metropolitan county of West Midlands (county), West Midlands, within the wider West Midlands (region), West Midlands region, in England. It is the Lis ...
and
Sheffield Sheffield is a city in South Yorkshire, England, situated south of Leeds and east of Manchester. The city is the administrative centre of the City of Sheffield. It is historically part of the West Riding of Yorkshire and some of its so ...
to supply the
jewellery Jewellery (or jewelry in American English) consists of decorative items worn for personal adornment such as brooches, ring (jewellery), rings, necklaces, earrings, pendants, bracelets, and cufflinks. Jewellery may be attached to the body or the ...
and silverware and
cutlery Cutlery (also referred to as silverware, flatware, or tableware) includes any hand implement used in preparing, serving, and especially eating food in Western culture. A person who makes or sells cutlery is called a cutler. While most cutlers ...
trade with raw materials and ancillary supplies, such as silver solder and
flux Flux describes any effect that appears to pass or travel (whether it actually moves or not) through a surface or substance. Flux is a concept in applied mathematics and vector calculus which has many applications in physics. For transport phe ...
, which it manufactured. In 1874, the company was commissioned to manufacture the kilogram reference standard, made from 90% platinum and 10% iridium, and held in the ''Bureau International des Poids et Mesures'' (
International Bureau of Weights and Measures The International Bureau of Weights and Measures (, BIPM) is an List of intergovernmental organizations, intergovernmental organisation, through which its 64 member-states act on measurement standards in areas including chemistry, ionising radi ...
), and copies of it for international distribution. Johnson Matthey similarly also produced the
International Prototype Metre During the French Revolution, the traditional units of measure were to be replaced by consistent measures based on natural phenomena. As a base unit of length, scientists had favoured the seconds pendulum (a pendulum with a half-period of o ...
and its copies.


20th century

Beginning in 1957, the company published the journal ''Platinum Metals Review'' with the support of the Rustenburg Platinum Mines."Review: A Noble Rival to Gold". in In the 1960s Johnson Matthey formed a subsidiary, Johnson Matthey Bankers (JMB), which took its seat in the
London Gold Fixing The London Gold Fixing (or Gold Fix) is the setting of the price of gold that takes place via a dedicated conference line. It was formerly held on the London premises of Nathan Mayer Rothschild & Sons by the members of The London Gold Market Fixi ...
. In the early 1980s the bank expanded its activities outside the bullion business and started making high-risk loans. Bank assets more than doubled between 1980 and 1984, and loans became concentrated to a few borrowers, including Mahmoud Sipra and his El Saeed group, Rajendra Sethia and ESAL Commodities, and Abdul Shamji. The quality of some of these loans turned out to be worse than expected, such as the £21 million lent to Abdul Shamji of Gomba Holdings (the then owner of Puddle Dock and the
Mermaid Theatre The Mermaid Theatre was a theatre encompassing the site of Puddle Dock and Curriers' Alley at Blackfriars in the City of London, and the first built in the City since the time of Shakespeare. It was, importantly, also one of the first new th ...
in London). The size of the loans grew to exceed the level of the bank's capital. (Shamji was sentenced to 15 months in prison for lying about his assets during a High Court inquiry into the bank's collapse.) Because JMB was one of five members of the London Gold Fixing,
Bank of England The Bank of England is the central bank of the United Kingdom and the model on which most modern central banks have been based. Established in 1694 to act as the Kingdom of England, English Government's banker and debt manager, and still one ...
officials were worried that if it became insolvent confidence in the other bullion banks would be undermined, and panic could spread to the rest of the British banking system. To prevent a wider banking crisis the Bank of England organised a rescue package on the evening of 30 September 1984, purchasing JMB for £1. Most of JMB's business was subsequently sold to Mase Westpac.


21st century

In 2008 Johnson Matthey acquired ''Argillon'', a business specialising in
catalyst Catalysis () is the increase in rate of a chemical reaction due to an added substance known as a catalyst (). Catalysts are not consumed by the reaction and remain unchanged after it. If the reaction is rapid and the catalyst recycles quick ...
s, for €214 million. In October 2010 Johnson Matthey acquired ''InterCAT'', a supplier of fluid catalytic cracking additives for the
petroleum refining An oil refinery or petroleum refinery is an industrial process plant where petroleum (crude oil) is transformed and refined into products such as gasoline (petrol), diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefied petr ...
industry, for $56.2 million. Also in 2010 Johnson Matthey opened a new £34 million European emission control catalyst plant in
Skopje Skopje ( , ; ; , sq-definite, Shkupi) is the capital and largest city of North Macedonia. It lies in the northern part of the country, in the Skopje Basin, Skopje Valley along the Vardar River, and is the political, economic, and cultura ...
, (
North Macedonia North Macedonia, officially the Republic of North Macedonia, is a landlocked country in Southeast Europe. It shares land borders with Greece to the south, Albania to the west, Bulgaria to the east, Kosovo to the northwest and Serbia to the n ...
), which produced catalysts for both light- and heavy-duty vehicles. The company was one of the first
FTSE 100 The Financial Times Stock Exchange 100 Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" , is the United Kingdom's best-known stock market index of the 100 most market capitalisation, highly capitalised ...
companies to produce an integrated annual report and won the Best Annual Report in the FTSE 100 in the ICSA Hermes Transparency in Governance Awards in 2012, which recognised how sustainability issues were 'described in a way that clearly links them to business strategy and performance, rather than leaving them in a silo or on the sidelines.' In 2014, the company was shortlisted for
Business in the Community Business in the Community (BITC) is a British business-community outreach charity promoting responsible business, Corporate social responsibility, CSR, corporate responsibility, and is one of the The Prince's Charities, Prince's Charities of Cha ...
's Responsible Business of the Year Award for its Sustainability 2017 programme. In 2015, Johnson Matthey sold its gold and silver refining operations to Asahi Holdings, Inc., a Japanese firm. In May 2025, the company sold its Catalyst Technologies arm to
Honeywell Honeywell International Inc. is an American publicly traded, multinational conglomerate corporation headquartered in Charlotte, North Carolina. It primarily operates in four areas of business: aerospace, building automation, industrial automa ...
for £1.8 billion. The value of the sale represents 80 per cent of the company's market value.


Operations

Johnson Matthey is organised into four main businesses: Clean Air, Catalyst Technologies, Hydrogen Technologies, and Platinum Group Metals Services.


Factories


Europe

In 2009, Johnson Matthey opened a catalyst manufacturing plant in
North Macedonia North Macedonia, officially the Republic of North Macedonia, is a landlocked country in Southeast Europe. It shares land borders with Greece to the south, Albania to the west, Bulgaria to the east, Kosovo to the northwest and Serbia to the n ...
. It was expanded in 2012 and went on to become the largest exporter in North Macedonia. In August 2018, Johnson Matthey started the construction of a new factory in
Gliwice Gliwice (; , ) is a city in Upper Silesia, in southern Poland. The city is located in the Silesian Highlands, on the Kłodnica river (a tributary of the Oder River, Oder). It lies approximately 25 km west from Katowice, the regional capital ...
in Poland. The plant covers an area of approximately 23,000 m and is costing about PLN 450 million. The project will create about 400 new jobs. The plant consists of two production lines which will manufacture a range of catalysts.


Environmental performance

In December 2008 US subsidiary Johnson Matthey Inc was fined $2.25 million for a
felony A felony is traditionally considered a crime of high seriousness, whereas a misdemeanor is regarded as less serious. The term "felony" originated from English common law (from the French medieval word "''félonie''") to describe an offense that r ...
violation of the United States
Clean Water Act The Clean Water Act (CWA) is the primary federal law in the United States governing water pollution. Its objective is to restore and maintain the chemical, physical, and biological integrity of the nation's waters; recognizing the primary respo ...
, after admitting to violating the act at its
Salt Lake City Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the county seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake Ci ...
precious metals Precious metals are rare, naturally occurring metallic chemical elements of high economic value. Precious metals, particularly the noble metals, are more corrosion resistant and less chemically reactive than most elements. They are usual ...
refining facility. The violation related to the selective screening of wastewater samples for compliance analysis. Following the charge Johnson Matthey Inc contributed $750,000 to the
National Fish and Wildlife Foundation The National Fish and Wildlife Foundation (NFWF) is an American foundation that was chartered by the United States Congress in 1984 to increase the resources available for the conservation of the nation's fish, wildlife, plants, and habitats. A ...
and entered a three-year compliance agreement with the
US Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on De ...
.


See also

*
Gold Gold is a chemical element; it has chemical symbol Au (from Latin ) and atomic number 79. In its pure form, it is a brightness, bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal ...
*
Platinum Platinum is a chemical element; it has Symbol (chemistry), symbol Pt and atomic number 78. It is a density, dense, malleable, ductility, ductile, highly unreactive, precious metal, precious, silverish-white transition metal. Its name origina ...
*
Silver Silver is a chemical element; it has Symbol (chemistry), symbol Ag () and atomic number 47. A soft, whitish-gray, lustrous transition metal, it exhibits the highest electrical conductivity, thermal conductivity, and reflectivity of any metal. ...
* Johnson Matthey Technology Review


References


External links


Official site
{{Authority control Chemical companies established in 1817 Manufacturing companies of the United Kingdom Chemical companies of the United Kingdom Companies listed on the London Stock Exchange Companies in the FTSE 250 Index Companies based in the City of London British companies established in 1817 1817 establishments in England