Solvay is a Belgian-French multinational chemical company established in 1863, with its headquarters located in
Neder-Over-Heembeek, Brussels,
Belgium
Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
. Since the end of 2023, following its demerger with the creation of the new Syensqo entity, Solvay has specialized in essential chemistry and employs over 9,000 people in 40 countries.
In 2023, Solvay reached €4,880 million in revenues and €1,246 million of underlying EBITDA.
Solvay is listed on Euronext Brussels.
History
The evolution of Solvay
Founded in 1863, by
Ernest Solvay and his brother Alfred Solvay to produce
sodium carbonate
Sodium carbonate (also known as washing soda, soda ash, sal soda, and soda crystals) is the inorganic compound with the formula and its various hydrates. All forms are white, odourless, water-soluble salts that yield alkaline solutions in water ...
by the
Solvay process
The Solvay process or ammonia–soda process is the major industrial process for the production of sodium carbonate (soda ash, Na2CO3). The ammonia–soda process was developed into its modern form by the Belgian chemist Ernest Solvay during the ...
, the company has diversified into two main sectors of activity:
chemicals
A chemical substance is a unique form of matter with constant chemical composition and characteristic properties. Chemical substances may take the form of a single element or chemical compounds. If two or more chemical substances can be combin ...
and
plastics
Plastics are a wide range of synthetic or semisynthetic materials composed primarily of polymers. Their defining characteristic, plasticity, allows them to be molded, extruded, or pressed into a diverse range of solid forms. This adaptab ...
. Before Solvay was the largest multinational company in the world. It was formerly also active in
pharmaceuticals
Medication (also called medicament, medicine, pharmaceutical drug, medicinal product, medicinal drug or simply drug) is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy ( pharmacotherapy) is an important part of the ...
, but agreed to sell that entire division to
Abbott Labs for €4.5 billion in September 2009, a deal was completed in February 2010.
In April 2011, the firm agreed to the €3.4 billion acquisition of French-based chemicals company
Rhodia which was completed in September 2011.
Since January 2012, the new Solvay has been listed on the
NYSE Euronext in Paris and joined the
CAC 40
The CAC 40 () () is a Benchmark (computing), benchmark French stock market index. The index represents a capitalization-weighted measure of the 40 most significant stocks among the 100 largest market capitalization, market caps on the Euronext Pa ...
index in September 2012. Solvay is historically listed on the
NYSE Euronext in Brussels and part of
BEL20 index.
The company is a supporter of the
Solvay Conference
The Solvay Conferences () have been devoted to preeminent unsolved problems in both physics and chemistry. They began with the historic invitation-only 1911 Solvay Conference on Physics, considered a turning point in the world of physics, and ar ...
s that were started by Ernest Solvay in 1911.
On December 3, 2015, Solvay launched a share issue sent to existing shareholders, completing funding for the $5.5 billion purchase of
Cytec Industries Inc.
Recent activities and markets
On December 8, 2023, shareholders approved the plan to spin off Solvay into two independent, publicly listed companies: Solvay and
Syensqo. Solvay retained its essential chemistry activities and employs 9,000 people and generates an annual turnover of €4.88 billion.
The aim of the separation was to provide each company with the independence and flexibility to pursue distinct strategies. The traditional chemical activities, such as
soda, hydrogen
peroxide
In chemistry, peroxides are a group of Chemical compound, compounds with the structure , where the R's represent a radical (a portion of a complete molecule; not necessarily a free radical) and O's are single oxygen atoms. Oxygen atoms are joined ...
and adhesives, will continue under the Solvay name and will be led by Philippe Kehren. The other activities, such as plastics for electronics and rechargeable batteries, have been transferred to a new company called Syensqo (pronounced: science-co), with Ilham Kadri as chairman, who was previously Solvay's General Manager since 2019.
Syensqo began its specialty chemicals activities with 13,200 employees and an annual turnover of €7.9 billion. On Monday, December 11, Syensqo shares were listed on the stock exchange and are included in the BEL 20 share index.
In 2024, Solvay announced its plan to supply Europe with rare earth metals for permanent magnets used in EVs and wind turbines from its refurbished plant in France.
Corporate affairs

The company's head office is located in
Brussels
Brussels, officially the Brussels-Capital Region, (All text and all but one graphic show the English name as Brussels-Capital Region.) is a Communities, regions and language areas of Belgium#Regions, region of Belgium comprising #Municipalit ...
,
Belgium
Belgium, officially the Kingdom of Belgium, is a country in Northwestern Europe. Situated in a coastal lowland region known as the Low Countries, it is bordered by the Netherlands to the north, Germany to the east, Luxembourg to the southeas ...
. It was previously in
Ixelles
(French language, French, ) or (Dutch language, Dutch, ) is one of the List of municipalities of the Brussels-Capital Region, 19 municipalities of the Brussels-Capital Region, Belgium. Located to the south-east of Pentagon (Brussels), Brusse ...
, Brussels
Solvay has several subsidiaries in the world, including its
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
's subsidiary, Solvay America, Inc., is based in
Houston
Houston ( ) is the List of cities in Texas by population, most populous city in the U.S. state of Texas and in the Southern United States. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, it is the county seat, seat of ...
,
Texas
Texas ( , ; or ) is the most populous U.S. state, state in the South Central United States, South Central region of the United States. It borders Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the we ...
.
[Harris County Improvement District #3]
" (se
map
''Upper Kirby''. Retrieved on December 10, 2008. Solvay also has its subsidiary in Canada, Ontario. The company is also present in Asian countries like Singapore and Indonesia, in Latin America (Brazil, Mexico, etc.) and in Europe (France, Italy, Portugal, etc.).
Executive committee
* Philippe Kehren : Chief Executive Officer;
* Alexandre Blum : Chief Financial Officer;
* Lanny Duvall : Chief Operations Officer;
* Dr. Mark van Bijsterveld : Chief People Officer;
* Lisa Brown : General Counsel and Corporate Secretary.
Products
Solvay is a main partner of
Solar Impulse and has contributed research and development resources to their solar powered airplane project. That aircraft conducted its first test flight on 3. December 2009, and since then has made solar-powered flights from Switzerland to Spain and Morocco in 2012.
In 2015–2016, ''Solar Impulse 2'' flew around the world, the first such journey by a solar-powered aircraft.
Fuel cell technology
SolviCore, a joint venture by
Umicore and Solvay in the field of
fuel cell
A fuel cell is an electrochemical cell that converts the chemical energy of a fuel (often hydrogen fuel, hydrogen) and an oxidizing agent (often oxygen) into electricity through a pair of redox reactions. Fuel cells are different from most bat ...
s is already pre-marketing
membrane-electrode assemblies for different types of fuel cells for portable or mobile use. New generation lithium batteries for hybrid vehicles components make use of Solvay fluorinated polymers in order to reduce carbon dioxide emissions.
Soil remediation
Novosol is a
sodium bicarbonate
Sodium bicarbonate ( IUPAC name: sodium hydrogencarbonate), commonly known as baking soda or bicarbonate of soda (or simply “bicarb” especially in the UK) is a chemical compound with the formula NaHCO3. It is a salt composed of a sodium cat ...
-based process for treating and recovering mineral residues contaminated with heavy metals.
Renewable feedstock
Solvay is working on the development and industrialization of the proprietary Epicerol process for manufacturing
epichlorohydrin
Epichlorohydrin (abbreviated ECH) is an organochlorine compound and an epoxide. Despite its name, it is not a halohydrin. It is a colorless liquid with a pungent, garlic-like odor, moderately soluble in water, but miscibility, miscible with most p ...
from natural
glycerin
Glycerol () is a simple triol compound. It is a colorless, odorless, sweet-tasting, viscous liquid. The glycerol backbone is found in lipids known as glycerides. It is also widely used as a sweetener in the food industry and as a humectant in pha ...
.
Legal affairs
In 2020, Solvay Specialty Polymers USA, now Syensqo, was the subject of litigation for its contaminating water sources and soil with per- and polyfluoroalkyl substances (PFAS). PFAS, a group of more than 4,000 compounds used in nonstick cookware, stain-resistant fabrics, firefighting foam and a range of other products, do not break down in the environment, and therefore accumulate in the body. They have been linked to cancer, fertility problems, liver damage, high cholesterol, and other health problems.
In November 2020, the
New Jersey Attorney General
The attorney general of New Jersey is a member of the executive cabinet of the state and oversees the New Jersey Department of Law and Public Safety, Department of Law and Public Safety. The office is appointed by the governor of New Jersey, confi ...
announced its filing of two lawsuits "to compel the clean-up of contamination and recover Natural Resource Damages (NRDs)", one of which is against Solvay Specialty Polymers USA, LLC and Arkema Inc., alleging they are "two companies responsible for widespread contamination from toxic per- and polyfluoroalkyl substances (PFAS) emanating from a Gloucester County facility, which has contaminated public drinking water in the region."
This is part of an ongoing and growing investigation.
Solvay impeded the availability of an analytical standard by legal maneuver.
In 2021, Delaware has reached an agreement with Solvay Specialty Polymers. Although Solvay denies any responsibility, the agreement mandates a thorough environmental investigation under the supervision of the DNREC to assess the extent of the contamination. Initial tests did not reveal any immediate health risks for local residents.
See also
*
Solvac
*
List of companies of Belgium
References
External links
*
Solvay 150 years history
{{DEFAULTSORT:Solvay Group (Company)
1863 establishments in Belgium
Belgian brands
Chemical companies of Belgium
Chemical companies established in 1863
Companies listed on Euronext Brussels
Manufacturing companies based in Brussels
Multinational companies headquartered in Belgium
Plastics companies of Belgium