Largest Plastic Additive Companies: 57 Producers Ranked by Additive Family, Brands and Sales

The largest plastic additive company is BASF, which supplies more additive families than any other producer, followed by Clariant, Songwon, Adeka and Lanxess; this page ranks 57 producers by the additive families they supply, because no company in the industry reports its plastic additive sales separately. So how do the analyst top-player lists decide who is biggest, and why do they disagree? The 57 producers fall into 7 supply-side groups, in the order used throughout this page: stabilizer houses; PVC stabilizer, metal soap and lubricant houses; plasticizer and oxo-chemical producers; flame retardant and mineral flame retardant producers; modifier, nucleator, peroxide and engineering-additive specialists; colorant, carbon black and titanium dioxide producers; and masterbatch, filler and oleochemical producers. They sell into an additives industry that Ceresana measured at 36.7 million tonnes in 2023 and that analysts value between USD 43.5 billion (MarketsandMarkets, 2023) and USD 63.71 billion (Precedence Research, 2025).

This page ranks the 57 companies with a master table of every producer, HQ and brand line, the same 7 groups broken into individual company profiles, a table of which company leads each additive family, a table of who owns which brand today after 18 years of consolidation, the forces that move the ranking up and down, where distributors fit for buyers who cannot meet a direct minimum order, and 7 checks for choosing between these companies.

Revenue columns show group or business-unit figures as the company reports them. No producer publishes plastic additive revenue, so no column on this page claims to show it.

Who Are the Largest Plastic Additive Companies?#

A plastic additive company is a producer that synthesises an additive, such as BASF with Irganox 1010, or mines and processes one, such as Huber with alumina trihydrate, and sells it to compounders, masterbatch houses and converters. The supply chain runs in 4 layers: upstream minerals and oxo-alcohols, additive manufacturers, masterbatch and compound producers, and distributors. Within that chain, a masterbatch producer sells the additive pre-dispersed in a carrier resin by let-down ratio, a compounder sells a ready-to-mould compound, a one-pack supplier sells a pre-weighed dust-free blend of several additives, and a distributor buys, stores, repacks and resells without manufacturing. Every substance these companies sell belongs to one of the families listed under plastic additives.

Why no company publishes its plastic additive sales#

No plastic additive producer reports its additive sales as a separate figure, because additives sit inside larger reporting segments: Clariant's Adsorbents & Additives business unit reached CHF 987 million in 2025 inside group sales of CHF 3.915 billion, and that is the closest disclosure the industry offers. Analyst estimates of the market's total value differ by a factor of about 1.5 because they count fillers, pigments and masterbatch differently, which is why this page cites a range rather than a single figure. Three disclosures exist in place of a true plastic-additive revenue line:

• Business-unit sales where a company reports them, such as Clariant's Adsorbents & Additives unit
• Group revenue, which includes non-additive businesses, such as Albemarle's lithium segment and ExxonMobil's fuels
• Production volumes reported under the EPA Chemical Data Reporting rule, which record Irganox 1010 and Irgafos 168 each at 40 to 55 million pounds per year

Our source library does not support converting Clariant's Swiss franc figures to US dollars, and this page does not estimate any single segment's implied share of a producer's total business.

How this ranking is built: 5 criteria#

This ranking uses 5 criteria: count the additive families each company supplies, read the sales it actually discloses, date every third-party ranking statement, record the families in which its brands lead, and use USGS capacity data for the mineral and pigment producers.

1. Count the additive families a company supplies, evidenced only by a named brand line; an undocumented family is not counted
2. Read the disclosed business-unit or segment sales where a company reports them, such as Clariant's Adsorbents & Additives unit and Avient's group figure
3. Date every third-party ranking statement; CHEManager International placed Songwon second in polymer stabilizers behind BASF, and ahead of Albemarle and Clariant, in 2013, and this page states that as a 2013 finding, not a current one
4. Record the families in which a company's brands are the named leader, drawn from the same brand evidence as criterion 1
5. Use primary capacity and production data for the mineral and pigment producers, including the USGS figure of 9.9 million tonnes per year of world titanium dioxide pigment capacity in 2025

Company self-descriptions, such as Songwon calling itself the world's second largest polymer stabilizer producer or Ampacet describing itself as a global masterbatch leader, are recorded in this ranking as attributed claims. They are never used as ranking evidence on their own.

Is BASF the largest plastic additive company?#

Yes on portfolio breadth and unproven on revenue: BASF supplies more additive families than any other producer after completing the Ciba Specialty Chemicals acquisition on 9 April 2009, and CHEManager ranked it first in polymer stabilizers in 2013, but no company publishes the additive sales that would settle the question. BASF's offer for Ciba, made on 15 September 2008 at CHF 50 per share, valued the business at an enterprise value of CHF 6.1 billion including net debt and pensions, and it added Irganox and Irgafos antioxidants, Tinuvin, Chimassorb and Uvinul light stabilizers, Irgastab process and PVC stabilizers, and the Melapur flame retardant to a portfolio that already held the plasticizers Palatinol and Hexamoll DINCH. No sales figure in our source library confirms BASF as the largest by revenue, so this page answers the question on family count and third-party ranking evidence only, never on an invented additive sales total.

The 57 Largest Plastic Additive Companies in One Table#

The complete list of plastic additive companies below gives all 57 producers with their headquarters country, the additive families each supplies, its signature brands, the sales it discloses and its most recent ownership change. Company order follows the 7 supply-side groups defined in the next section, and inside each group by the number of additive families supplied, descending. Where our source library holds no figure for a cell, it reads "not disclosed in our sources" rather than an estimate.

Sales columns are group or business-unit figures as reported by the company, not plastic additive sales. Five companies, LG Chem, Aekyung, Nan Ya, Sumitomo Chemical and Mayzo, appear because they supply named additives, but company-level data for them is not yet verified. Each company also has a profile in the plastic additive manufacturers and suppliers directory. Quotes from the producers in this table can be requested through our supplier finder.

The 57 Companies by Supply-Side Group#

The 57 largest plastic additive companies fall into 7 supply-side groups: stabilizer houses, PVC stabilizer and lubricant houses, plasticizer and oxo-chemical producers, flame retardant and mineral producers, modifier and nucleator specialists, colorant and pigment producers, and masterbatch, filler and oleochemical producers. Every company profile below states what the producer supplies first, then one brand, transaction, disclosed figure or plant fact where our source library holds one; where it does not, the sentence states that the data is not yet verified rather than estimating it.

1. Stabilizer houses: antioxidants and light stabilizers (11)#

Stabilizer houses are the broadline companies that supply antioxidants, light stabilizers and process stabilizers across many polymers; the group has 11 members: BASF, Clariant, Songwon, Adeka, SI Group, Lanxess, Syensqo, Rianlon, Everspring, Sabo and Mayzo. Several of them also anchor the family reference for antioxidants for plastics.

BASF#

BASF, headquartered in Ludwigshafen, supplies more additive families than any other company: antioxidants (Irganox, Irgafos), light stabilizers (Tinuvin, Chimassorb, Uvinul), process and PVC stabilizers (Irgastab), the melamine flame retardant Melapur and the plasticizers Palatinol and Hexamoll DINCH. It sold its pigments business to DIC in a deal agreed in 2019 at EUR 1.15 billion and closed in 2021 as BASF Colors & Effects, and it announced a HALS and NOR HALS capacity expansion for Chinese agricultural film on 21 April 2026, alongside its VALERAS and RegXcellence service lines.

Clariant#

Clariant is the only company on this list that publishes a sales figure close to its additive business: its Adsorbents & Additives unit reached CHF 987 million in 2025 inside group sales of CHF 3.915 billion. Its product lines span Exolit flame retardants, the AddWorks and Hostavin performance and UV additives, Hostanox antioxidants and the Licocene, Licowax and Ceridust wax range, and it announced an Exolit OP capacity expansion at Daya Bay on 5 June 2026 after selling its masterbatch business to PolyOne (now Avient) in 2020 for about USD 1.6 billion.

Songwon#

Songwon, based in Ulsan, South Korea, supplies antioxidants and light stabilizers under the SONGNOX and SONGXTEND names and describes itself as the world's second largest producer of polymer stabilizers. CHEManager International ranked it second in polymer stabilizers behind BASF in 2013, and it acquired Additive Technology Greiz in 2011 and launched its first RSPO-certified product, SONGNOX 1076, on 14 July 2026.

Adeka#

Adeka of Tokyo covers antioxidants, light stabilizers, nucleating and clarifying agents, PVC stabilizers and plasticizers under one brand, ADK STAB, and announced a TRANSPAREX clarifier plant in South Korea on 25 August 2026. Its ADK TRANSPAREX clarifier reaches a haze of 2.2 percent at 1 mm, a figure the company had third-party verified.

SI Group#

SI Group, based in The Woodlands, Texas, runs 18 manufacturing sites and joint ventures and supplies phenolic antioxidants (ETHANOX, ANOX, LOWINOX, NAUGARD), phosphites (WESTON) and maleated coupling agents (POLYBOND). It acquired Albemarle's antioxidant business in 2014, formed its combined organisation in 2018, and closed a recapitalization on 23 December 2025 that cut net debt by about USD 1.7 billion.

Lanxess#

Lanxess of Cologne became a four-family additive house when it completed the Chemtura acquisition on 21 April 2017: it supplies flame retardants (DISFLAMOLL, FIREMASTER, LEVAGARD, REOFOS, EMERALD INNOVATION), plasticizers (MESAMOLL, ADIMOLL, UNIPLEX, ULTRAMOLL, UNIMOLL), hydrolysis stabilizers (STABAXOL) and colorants (MACROLEX, LEVANOX, LEVANYL). The deal, announced 25 September 2016 at an enterprise value of about EUR 2.4 billion, was priced at USD 33.50 per share.

Syensqo#

Syensqo, listed in Brussels on 11 December 2023 after its spin-off from Solvay, owns the Cyasorb light stabilizers and Cyanox antioxidants and reported group revenue of EUR 5,969 million in 2025. Both brand lines reached it from Cytec, which Solvay acquired in July 2015, and the company has been led by chief executive Mike Radossich since January 2026.

Rianlon#

Rianlon of Tianjin, founded in 2003 and listed in Shenzhen under code 300596, supplies antioxidants, UV absorbers, HALS and U-pack blends from six production bases. It held more than 300 patents as of December 2025 and broke ground on a Malaysia plant in January 2026.

Everspring#

Everspring Chemical of Taichung, founded in 1988, supplies antioxidants, light stabilizers and pre-blended antioxidant packages.

Sabo#

Sabo, based at Levate near Bergamo, acquired the hindered amine light stabilizer business that Ciba divested around the BASF deal, and it has supplied polymer additives for more than 80 years. It operates sites in Italy, Germany, China and the USA.

Mayzo#

Mayzo supplies UV absorbers, hindered amine light stabilizers and optical brighteners for plastics; its company-level data is not yet verified, so this entry lists only its product families.

2. PVC stabilizer, metal soap and lubricant houses (8)#

PVC additive houses supply the heat stabilizers, metal soaps and lubricants that every PVC compound needs; the group has 8 members: Baerlocher, Reagens, Galata Chemicals, Valtris, PMC Group, Platinum Industries, Peter Greven and Struktol. Their core product sits on the PVC heat stabilizers family page.

Baerlocher#

Baerlocher, a family business with more than 200 years of history and 1,150 employees, supplies calcium-zinc and mixed-metal PVC stabilizers, metal soaps and one-packs under the BAEROSTAB, BAEROPAN and CEASIT names. It runs sites in Germany, the USA, the UK, Malaysia, Turkey, Italy, India, China and Brazil, offers dust-free product forms and runs PFAS-free processing-aid and tin-replacement programmes.

Reagens#

Reagens is an Italian PVC stabilizer producer with operations in Germany, the United States and India, and it describes its specialty additive-system portfolio as the largest in the sector.

Galata Chemicals#

Galata Chemicals of Jersey City supplies organotin and mixed-metal PVC stabilizers, liquid phosphites, plasticizers and antistatic additives.

Valtris#

Valtris Specialty Chemicals supplies plasticizers, epoxidized natural oils, PVC heat stabilizers and lubricants, and opened an office in Midland, Michigan on 17 August 2026, adding to more than 75 years of operation.

PMC Group#

PMC Group of Mount Laurel, New Jersey supplies tin PVC stabilizers through PMC Organometallix and Kemamide fatty amide slip agents through PMC Biogenix.

Platinum Industries#

Platinum Industries of Mumbai makes lead-free calcium-zinc and calcium-organic PVC stabilizers under the Highstab name and CPVC one-packs under Unipack, from plants at Palghar in India and Ain Sokhna in Egypt. It also supplies Platilub oleochemical additives, PE waxes, metal soaps, impact modifiers and processing aids, serving a market where India's PVC consumption reached about 3,700 kilotonnes in 2021, about 75 percent of it into pipes and fittings.

Peter Greven#

Peter Greven supplies metal soaps and lubricants for plastics, including the calcium and zinc stearates used both as PVC stabilizer components and as processing lubricants.

Struktol#

Struktol supplies processing additives and lubricant packages for plastics and PVC, including the paraffin (0.6 to 1.5 phr), calcium stearate (0.6 to 1.5 phr) and oxidised polyethylene wax (0.1 to 0.2 phr) combination used in rigid PVC pipe.

3. Plasticizer and oxo-chemical producers (10)#

Plasticizer producers sit closest to the refinery, because the oxo-alcohols and acids they esterify are petrochemical intermediates; the group has 10 members: ExxonMobil, Eastman, Evonik, Perstorp, OXEA, Hallstar, Teknor Apex, LG Chem, Nan Ya and Aekyung. Full family coverage sits under plasticizers for plastics.

ExxonMobil#

ExxonMobil supplies the Jayflex range of DINP and DIDP plasticizers and gained share in the DINP market during 2025, according to the ResourceWise plasticizers review.

Eastman#

Eastman of Kingsport, Tennessee reported group revenue of USD 8.75 billion in 2025 and sells the non-ortho-phthalate plasticizer Eastman 168 (DOTP), TOTM and the Admex polymeric plasticizers through its Additives & Functional Products segment. The company acquired Solutia in 2012 for USD 4.8 billion and Taminco in 2014 for USD 2.8 billion.

Evonik#

Evonik of Essen reported group revenue of EUR 14.1 billion in 2025 and supplies the plasticizers Vestinol 9 and Elatur CH through its carved-out Evonik Oxeno business. A 15 percent US tariff applies to its DINP exports.

Perstorp#

Perstorp of Malmö, owned by PETRONAS Chemicals Group, supplies the non-phthalate plasticizers Pevalen and Pevalen Pro 100.

OXEA#

OXEA returned to its original name in April 2025, when Strategic Value Partners and Blantyre Capital acquired the business that Oman Oil had bought in 2013 and renamed OQ Chemicals in 2020. Its plants operate in Germany and the USA.

Hallstar#

Hallstar supplies ester plasticizers for plastics and elastomers, including the Paraplex and Plasthall ranges.

Teknor Apex#

Teknor Apex of Pawtucket, Rhode Island is both a compounder and a producer: it sells vinyl compounds, thermoplastic elastomers and colour masterbatch, and it makes ester plasticizers, from 15 locations.

LG Chem#

LG Chem is one of the Asian plasticizer majors named in our substance records; its company-level data is not yet verified, so this entry states only its role.

Nan Ya#

Nan Ya is recorded in our substance data as a producer of DOTP, the leading non-ortho-phthalate plasticizer; its company-level data is not yet verified.

Aekyung#

Aekyung is recorded in our substance data as an Asian plasticizer producer; its company-level data is not yet verified.

4. Flame retardant and mineral flame retardant producers (3)#

Flame retardant producers are split between halogen chemistry and mineral chemistry, and both depend on raw materials with concentrated supply; the group has 3 members: Albemarle, ICL and Huber Advanced Materials. Their family page is flame retardants for plastics.

Albemarle#

Albemarle supplies brominated flame retardants under the Saytex name and reported group revenue of USD 5.14 billion in 2025, most of it from lithium rather than additives. It sold its antioxidant business to SI Group in 2014 and its Martinswerk unit, maker of the Martinal ATH and Magnifin MDH mineral flame retardants, to J.M. Huber in a deal completed 1 February 2016.

ICL#

ICL of Israel converts Dead Sea bromine into flame retardants such as the polymeric FR-122P, FR-245, FR-1025, FR-370 and the phosphate ester Fyrol PCF. Israel produced 140,000 tonnes of the roughly 400,000 tonnes of world bromine mined outside the United States in 2024, according to USGS.

Huber Advanced Materials#

Huber Advanced Materials, part of the privately held J.M. Huber Corporation founded in Atlanta in 1883, supplies the mineral flame retardants Martinal and Micral (alumina trihydrate) and Magnifin (magnesium hydroxide). Its reference halogen-free formulations run alumina trihydrate at 160 phr in EVA/LLDPE cable compounds and coated magnesium hydroxide at 185.7 phr in polypropylene, reaching a limiting oxygen index of 30.2 percent.

5. Modifier, nucleator, peroxide and engineering-additive specialists (9)#

Modifier and nucleator specialists sell into a narrow set of families where formulation know-how matters more than scale; the group has 9 members: Dow, Milliken, Nouryon, Arkema, Kaneka, Mitsubishi Chemical, Brüggemann, ALTANA (BYK) and Sumitomo Chemical. Impact modifiers are covered in full on impact modifiers.

Dow#

Dow supplies four modifier families: PARALOID acrylic impact modifiers and processing aids, Fusabond maleated coupling agents, Engage polyolefin elastomers and Tyrin chlorinated polyethylene.

Milliken#

Milliken, a private company founded in Spartanburg, South Carolina in 1865, leads the clarifier family with Millad NX 8000 and Millad ClearX 9000 and supplies Hyperform HPN nucleating agents.

Nouryon#

Nouryon, renamed from AkzoNobel Specialty Chemicals on 9 October 2018 after the Carlyle acquisition, supplies the Trigonox, Perkadox and Laurox organic peroxides used for crosslinking, plus Expancel microspheres, Armostat antistats, Armoslip slip agents and Ketjenblack conductive carbon black. It launched a recycled-PP performance solution in May 2026, from dual headquarters in Radnor, Pennsylvania and Amsterdam.

Arkema#

Arkema reported group revenue of EUR 9.1 billion in 2025 and has narrowed its additive presence: it sold its functional polyolefins (Lotader, Orevac, Lotryl, Evatane) to SK Functional Polymer in 2020 and its PMMA business to Trinseo on 3 May 2021 for EUR 1,137 million. It retains its organic peroxide line.

Kaneka#

Kaneka supplies Kane Ace MBS impact modifiers and acrylic processing aids, the standard toughening route for rigid PVC and CPVC.

Mitsubishi Chemical#

Mitsubishi Chemical supplies acrylic impact modifiers for PVC and engineering plastics, and announced in December 2021 that it would exit commodity chemicals.

Brüggemann#

Brüggemann of Heilbronn is the specialist for polyamide additives: its BRUGGOLEN range covers copper-salt and phenolic heat stabilizers, nucleators, flow improvers, chain extenders and chain breakers, sold in one-pack form. The company acquired Auserpolimeri.

ALTANA (BYK)#

BYK, the additives division of ALTANA, which SKion (Susanne Klatten) owns and which reported group revenue above EUR 3 billion in 2025, supplies dispersing, wetting and surface additives for thermoplastics and the Recyclobyk range for recyclate.

Sumitomo Chemical#

Sumitomo Chemical appears in our substance records as a supplier of polymer additives; its company-level data is not yet verified, so this entry states only its role.

6. Colorant, carbon black and titanium dioxide producers (8)#

Colorant producers are the pigment, carbon black and titanium dioxide houses that supply the largest additive families by tonnage after fillers and plasticizers; the group has 8 members: Sun Chemical (DIC), Sudarshan, Cabot, Orion Engineered Carbons, Chemours, Tronox, Kronos and Venator. The family page is colorants for plastics.

Sun Chemical#

Sun Chemical, part of the Japanese DIC group, became the largest organic pigment supplier for plastics after DIC completed its acquisition of BASF Colors & Effects in 2021.

Sudarshan#

Sudarshan of Pune completed its acquisition of the Heubach group on 3 March 2025 and now owns the Hostaperm and Hostatint pigment names that Clariant sold in 2022.

Cabot#

Cabot of Boston supplies specialty carbon blacks under the BLACK PEARLS, ELFTEX and VULCAN names, plus PLASBLAK carbon black masterbatch and CABELEC conductive compounds.

Orion Engineered Carbons#

Orion Engineered Carbons supplies carbon black for plastics, the pigment that also carries the ultraviolet protection in black pipe and cable compounds.

Chemours#

Chemours, spun off from DuPont in July 2015, sells Ti-Pure titanium dioxide through its Titanium Technologies segment and reported group revenue of USD 5.8 billion in 2025.

Tronox#

Tronox completed its acquisition of Cristal on 10 April 2019, reported group revenue of USD 2.90 billion in 2025 and describes itself as the largest vertically integrated titanium dioxide producer.

Kronos#

Kronos Worldwide of Dallas is one of the four titanium dioxide producers that supply the white pigment used in plastics.

Venator#

Venator, the pigments and additives business spun out of Huntsman, filed for Chapter 11 on 14 May 2023, and UK titanium dioxide capacity fell from 315,000 to 165,000 tonnes a year between the 2024 and 2025 USGS surveys.

7. Masterbatch, filler and oleochemical producers (8)#

Masterbatch, filler and oleochemical producers deliver additives in the form the converter actually buys: concentrates, mineral powders and fatty-acid derivatives; the group has 8 members: Avient, Ampacet, Tosaf, Omya, Imerys, Croda, Fine Organics and Emery. The family index is masterbatch.

Avient#

Avient, formed as PolyOne on 31 August 2000 and renamed after buying Clariant Masterbatches in 2020, is the largest masterbatch house on this list, with group revenue of USD 3.26 billion in 2025 and the Cesa, OnColor, ColorMatrix, Smartbatch and Hydrocerol brands. It also acquired Magna Colours in 2021 for USD 48 million and DSM Protective Materials in 2022 for USD 1.485 billion.

Ampacet#

Ampacet, which describes itself as a global masterbatch leader, is the reference for black pipe masterbatch practice: a 35 percent carbon black concentrate let down at 5 to 6.5 percent gives the 2 percent carbon black that pressure pipe standards require, using a let-down ratio of 19:1 to 14:1.

Tosaf#

Tosaf runs 22 production sites with about 1,600 employees and supplies additive, white and black masterbatch, including the FogFree antifog range, to customers in more than 50 countries.

Omya#

Omya of Oftringen, founded in 1884 as Plüss-Staufer and renamed Omya in 2000, supplies the ground calcium carbonate that is the highest-tonnage filler in plastics, from a workforce of about 9,000 people.

Imerys#

Imerys of Paris, with group revenue of EUR 3.794 billion in 2023, supplies talc, kaolin, carbonates and wollastonite, the mineral fillers and reinforcements used in polypropylene and polyamide compounds. Its North American talc subsidiaries filed for Chapter 11 in 2019, and the assets were sold to Magris Resources in November 2020 for USD 223 million.

Croda#

Croda, with group revenue of GBP 1,699.4 million in 2025, gave its name to the two best-known surface-additive brands in plastics, Crodamide slip agents and Atmer antistats, and sold most of its industrial chemicals business to Cargill in July 2022.

Fine Organics#

Fine Organics of Mumbai has made oleochemical additives since 1971 and now supplies more than 450 slip, antistatic and lubricant products to about 5,000 end users in more than 110 countries. It opened US and European subsidiaries in 2013 and 2016 and bought land for its first US plant in July 2025.

Emery#

Emery Oleochemicals, in business for more than 185 years, supplies bio-based lubricants and PVC processing additives under its Green Polymer Additives line.

Which Company Leads Each Additive Family?#

Each additive family has 2 to 4 producers whose brands define it: Milliken and Adeka in clarifiers, BASF and Songwon in antioxidants, Baerlocher and Reagens in PVC stabilizers, and Albemarle and ICL in brominated flame retardants. No company is named leader of a family unless a named brand line in this dossier evidences it; otherwise the cell reads "several suppliers, no leader evidenced."

Who Owns Which Additive Brand Today?#

Most of the best-known plastic additive brands have changed owner since 2009: Irganox and Tinuvin moved from Ciba to BASF on 9 April 2009, Naugard and Firemaster moved from Chemtura to Lanxess on 21 April 2017, and Cyasorb moved from Cytec through Solvay to Syensqo on 11 December 2023. This table answers only who owns each brand today; the transaction prices and the reasons behind each deal belong to the plastic additive industry mergers and acquisitions page.

What Changes the Ranking: Capacity, Prices, Tariffs and Restrictions#

Four forces move producers up and down this list: concentration of the raw material, export controls and tariffs, regulatory listings that end a product line, and plant closures driven by energy costs.

• Concentration of the raw material: China produced 40,000 tonnes of the 110,000 tonnes of mined antimony in 2025 and controls the export licences that apply to the rest; Israel and Jordan together supply most of the world's bromine outside the United States
• Export controls and tariffs: China required export licences for antimony ore, metal, oxides and compounds from August 2024 and banned antimony exports to the United States from December 2024; the United States applies antidumping duties to DOTP from Turkey, Malaysia, Taiwan and Poland, and a 15 percent tariff to Evonik Oxeno's DINP exports
• Restrictions that end product lines: the Stockholm Convention listings for decaBDE, HBCD and UV-328 remove those substances from active supply rather than shrinking a producer's overall position
• Energy-driven plant closures: Venator's Chapter 11 filing on 14 May 2023 accompanied a fall in UK titanium dioxide capacity from 315,000 tonnes per year in 2024 to 165,000 tonnes in 2025, according to USGS

The Argus CIF price for 99.65 percent antimony rose from USD 5.49 per pound in 2023 to USD 10.24 per pound in 2024 and averaged USD 25 per pound in 2025, peaking at USD 27.50 per pound in June 2025; the assessed and unit-value figures behind those moves are collected under plastic additive prices. Flame retardants accounted for 39 percent of US antimony end use in the 2024 data reported by USGS, a figure the 2026 edition merges into a broader 49 percent metal-products category, so this page never mixes the two years. The duty rates and HS codes behind the tariff figures above are listed under plastic additive trade.

Where the largest plastic additive companies are based#

Asia-Pacific consumes more than half of all plastic additives by volume, according to Ceresana, and 55 percent by value, according to Precedence Research, yet most of the broadline producers on this list are still headquartered in Europe, Japan, South Korea and the United States. Asia-Pacific's weight comes largely from downstream compounding and from upstream mineral capacity: China alone holds about 61 percent of world titanium dioxide pigment capacity. Europe hosts the largest number of broadline stabilizer and plasticizer houses on this list, including BASF, Clariant, Lanxess, Syensqo and Evonik, while the United States concentrates flame retardant, colorant and masterbatch producers such as Albemarle, Chemours, Tronox and Avient, and depends on imports for 85 to 91 percent of its antimony and more than 90 percent of its bromine. The regional and segment breakdown behind the value range cited earlier is on the plastic additives market page.

Where Distributors Fit: Buying Without a Direct Contract#

Distributors sell additives in drum and bag quantities to converters whose annual volume is below a producer's minimum order, and five of them cover most of the plastics market: Brenntag, Univar Solutions, IMCD, Azelis and Biesterfeld. Each of these plastic additive distributors is profiled with its principals and regions. A REACH registration under Regulation (EC) No 1907/2006 is held by a legal entity for a substance, so buying through a distributor never transfers that registration to the buyer; the registrant of record stays the manufacturer or importer, not the distributor that repacks and resells the drum.

Send one specification to several of these producers with the plastic additive supplier finder.

How Do You Choose Between These Companies? 7 Checks#

Choose a plastic additive supplier in 7 checks: match the family, confirm the brand equivalence against the data sheet, check who holds the REACH registration, check who holds the US food-contact notification, choose the physical form, decide between a one-pack and neat additives, and check the restricted-substance exposure.

1. Match the family first, using the leadership table above to shortlist producers that actually supply the additive family you need
2. Confirm brand equivalence against each supplier's technical data sheet, never assume it: the same substance carries different names across suppliers, such as Irganox 1010, SONGNOX 1010, ANOX 20 and ADK STAB AO-60, and only the data sheet confirms they match. The plastic additive trade name lookup cross-references these names against CAS numbers and suppliers
3. Check who holds the REACH registration, because it belongs to a legal entity for a substance, so the registrant must be the entity you actually buy from
4. Check who holds the US Food Contact Notification, since an FCN is held by a named notifier, such as Milliken Europe BV or Ampacet, and does not transfer with the substance
5. Choose the physical form and dosing method that fits your process: powder, free-flow, dust-free flow, granules, pastilles, prills or liquid
6. Decide between a one-pack blend and neat additives dosed separately, weighing formulation control against handling convenience
7. Check restricted-substance exposure across your target markets, including PFAS-free processing aids, lead-free PVC stabilizers and phthalate-free plasticizers

A downloadable shortlist that sorts these 57 producers by family is in development; until then, the checks above and the supplier finder above cover the same ground.

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Do the Largest Plastic Additive Companies Still Make Restricted Additives?#

Several producers on this list still make additives that are restricted somewhere: lead stabilizers remain legal outside the European Union, where REACH Annex XVII entry 63 has limited lead in PVC articles to below 0.1 percent since 29 November 2024. Recovered rigid PVC is allowed up to 1.5 percent lead until 28 May 2033 under the same entry. DEHP, DBP, BBP and DIBP have been limited to 0.1 percent in all EU articles since 7 July 2020 under Annex XVII entry 51, and UV-328 was listed in Annex A of the Stockholm Convention in 2023. Each of these listings ends a product line in the markets where it applies rather than removing a producer from this ranking; the substances themselves are listed under toxic plastic additives.

Which restricted additives are still in these portfolios?#

The restricted additives still found in these portfolios are low-molecular-weight ortho-phthalates, lead and organotin PVC stabilizers, brominated flame retardants and fluoropolymer processing aids, each legal in some markets and limited or listed in others. Four groups recur across the 57 producer profiles above:

• Ortho-phthalates such as DEHP, still permitted outside the entry-51 limit and inside the 8 FDA-authorised food-contact uses in the United States
• Lead and organotin PVC stabilizers, legal outside the EU and phased down inside it, with EU-15 lead stabilizer consumption falling from 127,156 tonnes in 2000 to 30,708 tonnes in 2010
• Brominated flame retardants, legal except for the specific congeners the Stockholm Convention has listed, such as decaBDE, HBCD and UV-328
• Fluoropolymer processing aids, where the EU's universal PFAS restriction is pending, not in force, so PFAS-free alternatives are marketed alongside existing grades rather than replacing them outright

A supplier page that shows a discontinued product states its listing date, so it never reads as a current offering; medium-chain chlorinated paraffins are described as adopted by the European Commission but not yet in force, and PFAS restrictions are described as pending, never as banned worldwide. The pending restriction and the PFAS-free alternatives are covered under PFAS in plastics.

Are plastic additive companies the same as plastic manufacturers?#

No: a plastic additive company makes the substances added to a polymer, while a plastic manufacturer makes the polymer itself, and the two industries differ by a factor of more than ten in tonnage, at about 36.7 million tonnes of additives against 431 to 475 million tonnes of plastics. A handful of companies, including ExxonMobil and Dow, appear on both lists because they make resin and also make additives. This page does not answer which company makes the most plastic overall, the big six commodity polymers, or which company is responsible for the most plastic pollution; those questions belong to general polymer science and consumer environmental reporting, both outside this page's scope.

Who are the largest plastic additive manufacturers in India?#

The largest Indian plastic additive manufacturers are Fine Organics in Mumbai for oleochemical slip and antistatic additives, Platinum Industries in Mumbai for PVC stabilizers, and Sudarshan in Pune for pigments. Fine Organics has supplied oleochemical additives since 1971, and Platinum Industries serves a market where PVC consumption reached about 3,700 kilotonnes in 2021, about 75 percent of it into pipes and fittings. The full list of plastic additive manufacturers and suppliers in India includes the regional stabilizer houses that supply this market.

Who are the largest plastic additive manufacturers in China?#

The largest Chinese plastic additive manufacturer with verified company data is Rianlon of Tianjin, which runs six production bases and is listed in Shenzhen under code 300596, while China's weight in the industry comes mainly from upstream capacity: about 61 percent of world titanium dioxide pigment capacity. China also produced 40,000 tonnes of the 110,000 tonnes of mined antimony in 2025 and controls the export licences that govern the rest of world supply. More plastic additive manufacturers and suppliers in China are listed on the country page, though several Chinese producers named in competitor lists are not yet verified against our sources and are omitted here for that reason.

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