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Plastic Additive Manufacturers and Suppliers Directory: 57 Companies by Additive Category and Region

This directory profiles 57 plastic additive manufacturers, sorted into 7 supply groups and mapped to 27 additive categories, so a buyer can go from an additive function to a named producer without a login. The hard part is rarely finding a company name: it is knowing whether that company still makes the grade, under which brand, and after which acquisition. The European Chemicals Agency's Plastic Additives Initiative mapping counts about 418 additive substances registered above 100 t/yr in the EU, and the 57 companies below manufacture the largest and most searched share of them.

A plastic additive reaches a converter through one of four businesses, and sourcing queries call all four "suppliers": the manufacturer that synthesises or mines and processes the substance, the masterbatch producer that concentrates it into a let-down pellet, the compounder that builds it into a ready-to-mould compound, and the distributor that stores, repacks and resells it without making it. Which of the four a buyer actually needs changes the shortlist, the paperwork and the order size, and the next section defines each role before the directory begins.

The directory that follows lists the 57 companies by additive category and by region, shows which brand now belongs to which owner after two decades of acquisitions, sets out 7 checks for verifying a supplier, and carries no paid inclusion or paid position, unlike every other cross-supplier list that currently ranks for these queries. A supplier finder for sending one request to several verified companies sits further down the page. This directory covers additives used in plastics only: suppliers of concrete admixtures, coating additives, fuel additives and food additives are out of scope even where the underlying chemistry overlaps.

Table T1. What this directory covers

Layer Pages What it gives you Start here
Manufacturer profiles 57 Headquarters, additive categories, brand lines, ownership history Table T2
Additive-category directories 27 The producers of one additive family, with grades Table T3
Regional hubs 4 India, China, USA, Europe The regional section below
Distributors and one-pack suppliers 1 Who resells, repacks and blends The distributor section below
Price guides 8 Published price data and drivers by substance plastic additive prices
Quote requests 1 One request to several suppliers The RFQ section below

Counts are pages in this section, not a claim about how many companies exist. Ceresana's 2023 report profiles 68 manufacturers.

What Is a Plastic Additive Supplier?#

A plastic additive supplier is any company that sells an additive to a converter, which in sourcing practice covers four different businesses: the manufacturer that makes the substance, the masterbatch producer that concentrates it, the compounder that builds it into a ready-to-mould compound, and the distributor that stores and resells it. Manufacturer, masterbatch producer, compounder and distributor differ in what they actually sell, not just in company size, and the distinction decides which question a buyer asks first.

Plastic additives move through a different supply role depending on batch size and country: the same phosphite antioxidant reaches a large compounder direct from the manufacturer and a small one through a distributor. The 43 families of plastic additives are defined on the reference page; this page starts from the company that sells them, not from the chemistry itself. Buyers who search "plastic additive suppliers" usually want all four roles covered; buyers who search "plastic additive manufacturers" usually want only the first.

Manufacturer, masterbatch producer, compounder or distributor?#

The four supply roles differ in what they actually sell you: a substance, a concentrate, a compound or a delivery service. Each role appears in this directory under a different set of companies:

  • Manufacturer: synthesises or mines and processes the additive itself, such as BASF making Irganox 1010 antioxidants or J.M. Huber making ATH flame-retardant filler.
  • Masterbatch producer: concentrates the additive into a carrier resin sold by let-down ratio, such as Ampacet, Avient, Tosaf and Cabot's PLASBLAK carbon black masterbatch.
  • Compounder: blends the additive package into a ready-to-mould compound, such as Teknor Apex's vinyl compounds.
  • Distributor: buys, stores, repacks and resells the additive without making it, such as Brenntag, Univar Solutions, IMCD, Azelis, Biesterfeld and DKSH.

A fifth pattern blurs into the first two: one-pack and dust-free blend suppliers premix several additives into a single delivery form, such as Baerlocher's and Reagens' PVC one-packs, Songwon's and Rianlon's antioxidant blends (Rianlon's line is sold as U-pack), and Clariant's AddWorks and Brüggemann's One-Pack systems.

What a quote actually prices changes with the role. A masterbatch price is quoted per kilogram of the concentrate, not per kilogram of active additive, so it becomes comparable with a neat additive price only once it is divided by the let-down ratio: a 2 % let-down delivers 2 kg of active additive per 100 kg of resin, and confusing that figure with a neat-material price is a common sourcing error. The mechanics of that conversion, and how masterbatch is built and let down, are covered on the masterbatch family page.

Trade name, generic name and equivalent grade#

Every additive grade carries two names: the trade name the manufacturer owns and the generic chemical name with its CAS number, and only the second one lets you compare two offers. Irganox 1010, for example, is the trade name for pentaerythritol tetrakis[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate], and the same substance also appears in catalogues as "AO 1010" or "antioxidant 1010". Two decades of acquisitions mean a buyer often searches under a name the current owner no longer uses: "Ciba Irganox", "Cytec Cyasorb", "Chemtura Naugard", "Great Lakes Firemaster", "Rohm and Haas Paraloid" and "Addivant Weston" all still return search volume for grades that trade today as BASF Irganox, Syensqo Cyasorb, SI Group NAUGARD, Lanxess Firemaster, Dow PARALOID and SI Group WESTON.

Brand names appear in the capitalisation the company itself uses, such as ETHANOX, SONGNOX and BRUGGOLEN, and never with a registered-trademark symbol on this site. No cross-supplier equivalence table exists in this reference: whether Irganox 1010 and a competing grade from another supplier are interchangeable depends on purity, volatiles and yellowness specifications that have to be compared datasheet against datasheet, not assumed from a shared CAS number alone. Every generic name and CAS number in this directory is in the plastic additives database, and trade names resolve to their generic identity in the plastic additive trade name lookup.

Plastic Additive Manufacturers: The Full Directory#

The 57 manufacturers below fall into 7 supply groups: broadline stabilizer houses, PVC stabilizer and oleochemical producers, plasticizer and oxo producers, flame retardant and mineral producers, impact modifier and processing-additive producers, colorant and pigment producers, and masterbatch and compound producers. Company order inside each group starts with the businesses that carry the most verified attributes in this reference, then continues alphabetically, and the same order repeats in the group headings below, in Table T2 and in the page's structured data.

A blank cell in Table T2 means the attribute is not yet confirmed against a primary source, not that it does not exist: this reference would rather leave a cell empty than estimate a headquarters, a brand line or a category.

1. Broadline stabilizer and light-stabilizer houses (11)#

Broadline stabilizer and light-stabilizer houses supply antioxidants, phosphites, UV absorbers and HALS as a single package rather than a single chemistry; the group has 11 companies: BASF, Songwon, Clariant, SI Group, Adeka, Syensqo, Rianlon, Everspring, Sabo, Mayzo and Sumitomo Chemical. BASF's stabilizer lines came from Ciba Specialty Chemicals, an acquisition completed on 9 April 2009. Songwon describes itself as the world's second-largest maker of polymer stabilizers, a claim that CHEManager ranked behind BASF in a 2013 industry ranking. Buyers who need antioxidants, UV stabilizers and HALS from one supplier typically shortlist from this group first, because a broadline house can bundle a full stabilizer package into a single purchase order.

2. PVC stabilizer, metal soap, lubricant and oleochemical producers (11)#

PVC stabilizer, metal soap, lubricant and oleochemical producers supply calcium-zinc and organotin stabilizers, metal stearates, waxes, slip agents and antistats to both rigid and flexible PVC; the group has 11 companies: Baerlocher, Reagens, Galata Chemicals, Valtris, PMC Group, Platinum Industries, Peter Greven, Struktol, Emery Oleochemicals, Croda and Fine Organics. The EU's lead restriction in PVC, which set the limit below 0.1 % from 29 November 2024 under REACH Annex XVII entry 63, moved volume in this group toward calcium-zinc chemistry and away from the legacy lead stabilizers the same companies once also supplied.

3. Plasticizer and oxo producers (10)#

Plasticizer and oxo producers supply the largest additive family by weight, at 34 % of global additive consumption; the group has 10 companies: ExxonMobil, Eastman, Evonik, Perstorp, OXEA, LG Chem, Aekyung, Nan Ya, Hallstar and Teknor Apex. Global plasticizer volume runs to 8.4 Mt/yr according to European Plasticisers, and this group also controls the oxo-alcohol feedstock behind that volume, which is why plasticizer supply moves with oxo economics rather than with additive demand alone. A single disruption in oxo-alcohol feedstock therefore reaches plasticizer buyers faster than a disruption in almost any other additive family.

4. Flame retardant and mineral producers (6)#

Flame retardant and mineral producers split into two chemistries: halogen and phosphorus flame retardants from Albemarle, ICL and Lanxess, and mineral flame retardants and fillers from J.M. Huber, Omya and Imerys; the group has 6 companies. Huber's ATH and MDH grades, Omya's calcium carbonate and Imerys' talc and kaolin all function as both a filler and a flame-retardant synergist depending on loading. Bromine supply behind the halogenated chemistry is concentrated: Israel alone produced 140,000 t of the roughly 400,000 t of world bromine production outside the United States in 2024, according to the US Geological Survey.

5. Impact modifier, nucleator, peroxide and processing-additive producers (8)#

Impact modifier, nucleator, peroxide and processing-additive producers supply the additives that make a polymer tougher, clearer or easier to process; the group has 8 companies: Milliken, Dow, Kaneka, Arkema, Nouryon, Brüggemann, BYK and Mitsubishi Chemical. Nucleators and clarifiers are effectively a two-company field in this reference: Milliken's Millad and Hyperform lines against Adeka's ADK STAB NA and TRANSPAREX grades, which sit in the stabilizer group above. Organic peroxides come from Nouryon and Arkema, and Brüggemann supplies copper-salt heat stabilizers used specifically in polyamides rather than in PVC.

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

Colorant, carbon black and titanium dioxide producers supply the largest single block in the ECHA additive mapping, 127 pigments among about 418 substances; the group has 8 companies: Sun Chemical, Sudarshan, Cabot, Orion Engineered Carbons, Chemours, Tronox, Kronos Worldwide and Venator. Titanium dioxide capacity is concentrated in China, which holds 6.0 Mt/yr of the 9.9 Mt/yr world total, according to the US Geological Survey's 2026 Mineral Commodity Summaries. Sudarshan's position in this group dates to 3 March 2025, when it completed the acquisition of Heubach, the pigment business Clariant had sold three years earlier.

7. Masterbatch and compound producers (3)#

Masterbatch and compound producers do not synthesise additives; they concentrate additives already made by the other six groups into a carrier resin sold by let-down ratio; the group has 3 companies: Avient, Ampacet and Tosaf. Avient traces to PolyOne, formed on 31 August 2000, and took its current name after buying Clariant's masterbatch business in 2020 for about USD 1.6 bn. This is the smallest group by company count in the directory, and the one where each member competes primarily on masterbatch service rather than on a specific chemistry.

Table T2. The manufacturer directory (57 companies, group order)

# Company Headquarters Additive categories supplied Brand lines in plastics Profile
1 BASF Ludwigshafen, Germany Antioxidants, UV stabilizers and HALS, Plasticizers, Flame retardants Irganox, Irgafos, Tinuvin, Chimassorb BASF manufacturer profile
2 Songwon Ulsan, South Korea Antioxidants SONGNOX, SONGXTEND Songwon manufacturer profile
3 Clariant Muttenz, Switzerland Flame retardants, Antioxidants, UV stabilizers and HALS, PE and polymer waxes Exolit, Hostavin, Hostanox, Licowax Clariant manufacturer profile
4 SI Group The Woodlands, Texas Antioxidants, Compatibilizers and coupling agents ETHANOX, WESTON, ANOX, LOWINOX, NAUGARD SI Group manufacturer profile
5 Adeka Tokyo, Japan PVC heat stabilizers, UV stabilizers and HALS, Nucleating and clarifying agents ADK STAB Adeka manufacturer profile
6 Syensqo Brussels, Belgium Antioxidants, UV stabilizers and HALS Cyasorb, Cyanox Syensqo manufacturer profile
7 Rianlon Tianjin, China Antioxidants, UV stabilizers and HALS U-pack one-pack blends Rianlon manufacturer profile
8 Everspring Taichung, Taiwan Antioxidants, UV stabilizers and HALS Everspring manufacturer profile
9 Sabo Levate (Bergamo), Italy UV stabilizers and HALS Sabo manufacturer profile
10 Mayzo UV stabilizers and HALS, Optical brighteners Mayzo manufacturer profile
11 Sumitomo Chemical Sumitomo Chemical manufacturer profile
12 Baerlocher Unterschleissheim, Germany PVC heat stabilizers, Metal stearates, PE and polymer waxes, Polymer processing aids BAEROPAN, CEASIT, ZINCUM Baerlocher manufacturer profile
13 Reagens Italy PVC heat stabilizers Reagens manufacturer profile
14 Galata Chemicals Jersey City, New Jersey PVC heat stabilizers, Plasticizers Galata Chemicals manufacturer profile
15 Valtris Plasticizers, PVC heat stabilizers Valtris manufacturer profile
16 PMC Group Mount Laurel, New Jersey PVC heat stabilizers, Metal stearates PMC Organometallix, PMC Biogenix PMC Group manufacturer profile
17 Platinum Industries Mumbai, India PVC heat stabilizers, Metal stearates, PE and polymer waxes Highstab, Unipack, Platilub Platinum Industries manufacturer profile
18 Peter Greven PE and polymer waxes, Metal stearates Peter Greven manufacturer profile
19 Struktol Struktol manufacturer profile
20 Emery Oleochemicals Slip agents Emery Oleochemicals manufacturer profile
21 Croda East Cowick, United Kingdom Slip agents, Antistatic agents slip and antistatic additives (product types; current brand ownership not verified, see Table T4) Croda manufacturer profile
22 Fine Organics Mumbai, India Slip agents Fine Organics manufacturer profile
23 ExxonMobil Plasticizers Jayflex ExxonMobil manufacturer profile
24 Eastman Kingsport, Tennessee Plasticizers Eastman 168, TOTM, Admex Eastman manufacturer profile
25 Evonik Essen, Germany Plasticizers Vestinol, Elatur Evonik manufacturer profile
26 Perstorp Malmö, Sweden Plasticizers Pevalen Perstorp manufacturer profile
27 OXEA Plasticizers OXEA manufacturer profile
28 LG Chem Plasticizers LG Chem manufacturer profile
29 Aekyung Plasticizers Aekyung manufacturer profile
30 Nan Ya Plasticizers Nan Ya manufacturer profile
31 Hallstar Plasticizers Hallstar manufacturer profile
32 Teknor Apex Pawtucket, Rhode Island Plasticizers Teknor Apex manufacturer profile
33 Albemarle Charlotte, North Carolina Flame retardants Saytex Albemarle manufacturer profile
34 ICL Israel Flame retardants FR-122P, Fyrol PCF ICL manufacturer profile
35 Lanxess Cologne, Germany Flame retardants, Plasticizers, Pigments Disflamoll, Firemaster, Reofos Lanxess manufacturer profile
36 J.M. Huber Atlanta, Georgia Flame retardants, Mineral fillers Martinal, Magnifin J.M. Huber manufacturer profile
37 Omya Oftringen, Switzerland Mineral fillers Omya manufacturer profile
38 Imerys Paris, France Mineral fillers Imerys manufacturer profile
39 Milliken Spartanburg, South Carolina Nucleating and clarifying agents Millad, Hyperform Milliken manufacturer profile
40 Dow Impact modifiers, Polymer processing aids acrylic impact modifiers and processing aids Dow manufacturer profile
41 Kaneka Impact modifiers, Polymer processing aids Kane Ace Kaneka manufacturer profile
42 Arkema Organic peroxides Arkema manufacturer profile
43 Nouryon Radnor, Pennsylvania, and Amsterdam, Netherlands Organic peroxides, Antistatic agents, Blowing agents Trigonox, Perkadox, Expancel Nouryon manufacturer profile
44 Brüggemann Heilbronn, Germany Nucleating and clarifying agents BRUGGOLEN Brüggemann manufacturer profile
45 BYK BYK manufacturer profile
46 Mitsubishi Chemical Impact modifiers acrylic impact modifiers Mitsubishi Chemical manufacturer profile
47 Sun Chemical Parsippany, New Jersey Pigments Sun Chemical manufacturer profile
48 Sudarshan Pune, India Pigments Heubach, Hostaperm, Hostatint Sudarshan manufacturer profile
49 Cabot Boston, Massachusetts Carbon black, Black masterbatch BLACK PEARLS, PLASBLAK Cabot manufacturer profile
50 Orion Engineered Carbons Carbon black Orion Engineered Carbons manufacturer profile
51 Chemours Wilmington, Delaware Titanium dioxide Ti-Pure Chemours manufacturer profile
52 Tronox Stamford, Connecticut Titanium dioxide Tronox manufacturer profile
53 Kronos Worldwide Dallas, Texas Titanium dioxide Kronos Worldwide manufacturer profile
54 Venator Titanium dioxide Venator manufacturer profile
55 Avient Avon Lake, Ohio Masterbatch (all types), Color masterbatch, Blowing agents OnColor, ColorMatrix, Smartbatch Avient manufacturer profile
56 Ampacet Masterbatch (all types), Color masterbatch, Black masterbatch Ampacet manufacturer profile
57 Tosaf Israel Masterbatch (all types), Color masterbatch, Black masterbatch, White masterbatch FogFree Tosaf manufacturer profile

An empty cell means the value is not yet confirmed against a primary source. Unconfirmed values stay blank and are never filled with an estimate.

How this directory is built. Every company, headquarters, category and brand line above is checked against a primary source before publication; the editorial policy confirms that no company pays for inclusion or for a higher position on this page, and no featured listing is implemented at launch.

Who Supplies Which Additive? The Directory by Additive Category#

Most sourcing starts from the additive, not the company, so the 27 category directories below list the producers of one additive family each, in the order of their share of global additive consumption. Plasticizers lead the list because they lead consumption by weight, and antimicrobial additives close it because this reference has not yet verified a named producer for that category.

Two of the 27 rows, filler masterbatch and antimicrobial additives, carry no company name for the same reason: producers are named on the category page once verified, rather than filled from memory here. Every other row lists between one and twelve companies with the brand line our source library attributes to them, and the Directory column links to the category page that carries the full producer list, dosage guidance and grade comparison for that one additive family.

Table T3. The directory by additive category (27 categories)

# Additive category What buyers search for Producers named in our source library Directory
1 Plasticizers "plasticizer manufacturers" ExxonMobil (Jayflex), BASF (Palatinol, Hexamoll DINCH), Eastman (Eastman 168), Evonik (Vestinol, Elatur), Perstorp (Pevalen), Lanxess (Mesamoll, Adimoll, Uniplex), Hallstar, Valtris, LG Chem, Aekyung, Nan Ya, Teknor Apex plasticizer manufacturers and suppliers
2 Mineral fillers "mineral filler suppliers" Omya, Imerys, J.M. Huber (Hydral, Micral) mineral filler manufacturers and suppliers
3 Flame retardants "flame retardant manufacturers" Albemarle (Saytex), ICL (FR-122P, FR-245, FR-1025, FR-370, Fyrol PCF), Lanxess (Disflamoll, Firemaster, Levagard, Reofos, Emerald Innovation), Clariant (Exolit), J.M. Huber (Martinal, Magnifin), BASF (Melapur) flame retardant manufacturers and suppliers for plastics
4 Antioxidants "antioxidant suppliers" BASF (Irganox, Irgafos), Songwon (SONGNOX), SI Group (ETHANOX, WESTON, ANOX, LOWINOX, NAUGARD), Adeka (ADK STAB), Clariant (Hostanox), Syensqo (Cyanox), Rianlon, Everspring antioxidant manufacturers and suppliers
5 PVC heat stabilizers "PVC stabilizer manufacturers" Baerlocher (BAEROPAN, BAEROSTAB, CEASIT, ZINCUM), Reagens, Galata Chemicals, Valtris, PMC Organometallix, Platinum Industries (Highstab, Unipack), Adeka PVC stabilizer manufacturers and suppliers
6 UV stabilizers and HALS "UV stabilizer and HALS suppliers" BASF (Tinuvin, Chimassorb, Uvinul), Syensqo (Cyasorb), Clariant (Hostavin), Sabo, Rianlon, Mayzo, Adeka, Everspring UV stabilizer and HALS manufacturers and suppliers
7 Pigments "pigment manufacturers" Sun Chemical (DIC), Sudarshan (Heubach, Hostaperm, Hostatint, Sudaperm), Lanxess (Macrolex, Levanox, Levanyl) pigment manufacturers and suppliers
8 Titanium dioxide "titanium dioxide suppliers" Chemours (Ti-Pure), Tronox, Kronos Worldwide, Venator titanium dioxide manufacturers and suppliers for plastics
9 Carbon black "carbon black manufacturers" Cabot (BLACK PEARLS, ELFTEX, VULCAN), Orion Engineered Carbons carbon black manufacturers and suppliers
10 Masterbatch (all types) "masterbatch producers" Avient (OnColor, ColorMatrix, Smartbatch), Ampacet, Tosaf, Cabot (PLASBLAK) masterbatch manufacturers and suppliers
11 Color masterbatch "color masterbatch producers" Avient, Ampacet, Tosaf color masterbatch manufacturers and suppliers
12 Black masterbatch "black masterbatch suppliers" Cabot (PLASBLAK), Ampacet, Tosaf black masterbatch manufacturers and suppliers
13 White masterbatch "white masterbatch suppliers" Avient, Ampacet, Tosaf white masterbatch manufacturers and suppliers
14 Filler masterbatch "filler masterbatch producers" (no producer verified in our source library; category page only) filler masterbatch manufacturers and suppliers
15 Additive masterbatch "additive masterbatch suppliers" Avient, Ampacet, Tosaf, Clariant (AddWorks) additive masterbatch manufacturers and suppliers
16 Impact modifiers "impact modifier suppliers" Dow (acrylic impact modifiers), Kaneka (Kane Ace), Arkema, Mitsubishi Chemical impact modifier manufacturers and suppliers
17 Polymer processing aids "processing aid manufacturers" Dow (acrylic processing aids), Kaneka, Clariant, Baerlocher (PFAS-free programme) polymer processing aid manufacturers and suppliers
18 Nucleating and clarifying agents "nucleating agent suppliers" Milliken (Millad NX 8000, Millad ClearX 9000, Hyperform HPN), Adeka (ADK STAB NA, TRANSPAREX), Brüggemann nucleating and clarifying agent manufacturers and suppliers
19 Organic peroxides "organic peroxide manufacturers" Nouryon (Trigonox, Perkadox, Laurox), Arkema organic peroxide manufacturers and suppliers
20 PE and polymer waxes "polymer wax suppliers" Clariant (Licowax, Licocene, Ceridust), Peter Greven, Platinum Industries (Platilub) polymer wax manufacturers and suppliers
21 Metal stearates "metal stearate manufacturers" Baerlocher (CEASIT, ZINCUM), Peter Greven, PMC Biogenix, Platinum Industries metal stearate manufacturers and suppliers
22 Slip agents "slip agent suppliers" Croda (Crodamide), Fine Organics, PMC Biogenix (Kemamide), Emery Oleochemicals slip agent manufacturers and suppliers
23 Antistatic agents "antistatic agent manufacturers" Croda (Atmer), Nouryon (Armostat, Ketjenblack), Fine Organics, Cabot (CABELEC) antistatic agent manufacturers and suppliers
24 Blowing agents "blowing agent suppliers" Nouryon (Expancel), Avient blowing agent manufacturers and suppliers
25 Compatibilizers and coupling agents "compatibilizer manufacturers" SI Group (POLYBOND), Dow (Fusabond), SK Functional Polymer (Lotader, Orevac) compatibilizer manufacturers and suppliers
26 Optical brighteners "optical brightener suppliers" Mayzo optical brightener manufacturers and suppliers
27 Antimicrobial additives "antimicrobial additive suppliers" (no producer verified in our source library; category page only) antimicrobial additive manufacturers and suppliers

Who Owns Which Plastic Additive Brand?#

A third of the best-known additive brands in this directory are no longer sold by the company that created them, and the reason is almost always an acquisition rather than a rebrand. BASF acquired Ciba Specialty Chemicals at an offer of CHF 50 per share and an enterprise value of CHF 6.1 bn including net debt and pensions, a deal announced on 15 September 2008 and completed on 9 April 2009; it brought Irganox, Irgafos, Tinuvin and Chimassorb into BASF's own portfolio, while Ciba's separate HALS business went to Sabo in the same transaction.

SI Group bought Albemarle's antioxidant portfolio, including the ETHANOX name, in 2014 and combined it with Weston, Anox, Lowinox and Naugard into one organisation in 2018, before closing a recapitalization on 23 December 2025 that cut net debt by about USD 1.7 bn. Syensqo carries Cyasorb and Cyanox forward from Cytec, which Solvay bought in 2015 and then spun off as Syensqo, listed on 11 December 2023. The pace has not slowed since: Lanxess completed its acquisition of Chemtura on 21 April 2017 at an enterprise value of about EUR 2.4 bn, carrying Firemaster, Reofos and Levagard into its portfolio, and Sudarshan completed the Heubach pigment acquisition on 3 March 2025. The full transaction record, with every deal this reference tracks, is on who owns which brand.

Table T4. Brand line to current owner (17 brand lines, newest first)

Brand line Sold today by Came from Since
Heubach, Hostaperm, Hostatint Sudarshan Clariant (via Heubach and SK Capital) Completed 3 Mar 2025
Oxo esters OXEA OQ Chemicals April 2025 (Strategic Value Partners and Blantyre Capital)
ETHANOX, WESTON, ANOX, LOWINOX, NAUGARD SI Group Albemarle (2014) and the 2018 combination Recapitalization closed 23 Dec 2025
Cyasorb, Cyanox Syensqo Cytec (via Solvay, 2015) Listed 11 Dec 2023
Lotader, Orevac, Lotryl, Evatane SK Functional Polymer Arkema 2020
Cesa and the Clariant masterbatch lines Avient Clariant 2020, about USD 1.6 bn
BASF Colors & Effects pigments DIC and Sun Chemical BASF Agreed 2019 at EUR 1.15 bn, closed 2021
Ti-Pure Chemours DuPont July 2015 spin-off
Cristal TiO2 assets Tronox Cristal Completed 10 Apr 2019
Trigonox, Perkadox, Expancel, Armostat, Ketjenblack Nouryon AkzoNobel Specialty Chemicals Renamed 9 Oct 2018
Firemaster, Reofos, Emerald Innovation Lanxess Chemtura Completed 21 Apr 2017, EV about EUR 2.4 bn
Martinal, Magnifin J.M. Huber Albemarle Martinswerk Completed 1 Feb 2016
North American talc assets Magris Resources Imerys Court approval Nov 2020, USD 223 m
Irganox, Irgafos, Tinuvin, Chimassorb BASF Ciba Specialty Chemicals Completed 9 Apr 2009
The Ciba HALS business Sabo Divested at the BASF-Ciba deal 2009
PMMA (border row: a polymer, not an additive) Trinseo Arkema 3 May 2021, EUR 1,137 m
Crodamide and Atmer Not verified Croda (majority of PTIC sold to Cargill) July 2022, about GBP 667 m

How Do You Choose a Plastic Additive Supplier? 7 Checks#

Choosing a plastic additive supplier takes 7 checks, and only the first one is about the company: the other six are about the grade, its paperwork and the raw material behind it. The additive itself is chosen before the supplier, and the criteria for that earlier decision are set out separately on how to select plastic additives; the 7 checks below assume the additive family and dosage are already fixed and the task is narrowing a shortlist of companies that can supply it.

  1. Confirm the company manufactures rather than repacks the additive, since a manufacturer, masterbatch producer, compounder and distributor carry different lead times and minimum volumes.
  2. Verify the REACH registration under the exact legal entity named on the offer, since a "REACH registered" claim under Regulation (EC) No 1907/2006 applies to a named registrant and substance, not to the additive in general.
  3. Check the food-contact route for the destination market: the EU allows only additives on the Union list of Regulation (EU) No 10/2011, within the overall migration limit of 10 mg/dm2 and the substance's own specific migration limit, while the US route runs through a 21 CFR listing or a company-specific FDA Food Contact Notification held by a named notifier.
  4. Screen the substance against the SVHC Candidate List, the relevant REACH Annex XVII entries (51, 52 and 63), any Stockholm Convention POPs listing and California Proposition 65, since a restriction can apply to one use and not another.
  5. Ask for the product form and the dosage basis, whether powder, granules, pastilles, liquid, dust-free blend, one-pack or masterbatch, so offers are compared per kilogram of active substance rather than per kilogram of delivered product.
  6. Compare grades on generic name and CAS number, never on trade name alone, since the same active substance can be sold under several brand names by several suppliers.
  7. Weigh the supply risk behind the raw material, since antimony, bromine and titanium feedstock economics and trade measures move additive prices more than chemical regulation does.

Download the Supplier Qualification Checklist (PDF) to work through all 7 checks on one form, in exchange for an email address, role and company name.

How to verify a supplier's regulatory status#

A supplier's regulatory status is checked per legal entity and per grade, not per substance: REACH registration belongs to the registrant that placed the substance on the EU market, and a US Food Contact Notification belongs to the company that filed it. A grade can be REACH registered by one company and sold under a distributor's own name without that distributor holding any registration of its own, so the registrant on the safety data sheet, not the supplier on the invoice, is the entity that carries the legal duty. The registration duties that fall on that registrant under Regulation (EC) No 1907/2006 are explained in full on REACH and plastic additives.

Food-contact status follows the same per-entity logic on both sides of the Atlantic. In the EU, only additives on the Union list of Regulation (EU) No 10/2011 may be used in food-contact plastics, subject to the substance's specific migration limit or the generic 60 mg/kg limit and the overall migration limit of 10 mg/dm2. In the US, the route is either a listing under 21 CFR or a company-specific FDA Food Contact Notification, and an FCN covers only the notifier named in it, which is why "FDA approved" is never an accurate claim for a plastic additive; the notification route is mapped in full on FDA food contact rules.

Restriction screening covers lists that change independently of each other: the SVHC Candidate List, REACH Annex XVII entries 51 (ortho-phthalates), 52 (mouthable-toy phthalates) and 63 (lead in PVC), any Stockholm Convention listing such as UV-328 (2023) or MCCP (2025), and California's Proposition 65. A Stockholm listing ends a product line even where a supplier's own catalogue has not caught up: decaBDE, HBCD, UV-328 and Dechlorane Plus can all still appear in an old datasheet for a grade that may no longer be placed on the market. Every listed additive that applies to plastics is tracked on the SVHC Candidate List page. The EU's universal PFAS restriction remains pending rather than in force, and it has already pushed fluoropolymer processing-aid supply toward the PFAS-free alternatives that Baerlocher, Tosaf, Ampacet and Clariant now offer, a shift covered on PFAS restrictions.

Branded grade or generic equivalent?#

The same antioxidant is sold under a branded trade name and under several generic names, so the choice is not between quality levels but between two datasheets that have to be compared line by line. This reference holds no verified comparison of purity, volatiles or yellowness between a branded grade and a generic equivalent, and no cross-supplier equivalence table exists here, or reliably anywhere else: two grades that share a CAS number can still differ in impurity profile, particle size or the registrant behind the regulatory filing. The comparison that actually matters runs through five points: the CAS identity, the specification limits on the datasheet, the REACH registrant, the food-contact route the grade is cleared under, and any third-party certification.

Certification is the thinnest of the five points in practice: this reference confirms exactly one third-party certification for a named additive grade, Songwon's SONGNOX 1076, which became the company's first RSPO-certified product on 14 July 2026. Company-level facts still separate otherwise similar suppliers even without a grade certification: Rianlon is a Shenzhen-listed producer (300596) founded in 2003 with six production bases and more than 300 patents as of December 2025, and Everspring has produced antioxidants and light stabilizers from Taichung since 1988. Neither fact substitutes for comparing the two datasheets in front of you, but both narrow which datasheets are worth requesting.

Where Are Plastic Additive Manufacturers Located?#

Plastic additive supply is regionally concentrated in a different way for every additive: stabilizer chemistry sits in Europe, Korea and Japan, pigment and titanium dioxide capacity sits in China, and bromine for flame retardants comes mostly from Israel and Jordan. Asia-Pacific accounts for more than 50 % of additive demand by volume, according to Ceresana's 2023 study, and 55 % of value, according to Precedence Research's 2025 estimate; the two figures differ because they measure different things, volume against value, not because the analysts disagree on where demand sits.

Table T5 below maps each region to what it concentrates and to the companies in this directory headquartered there, and three regional hubs go deeper into country-level detail than this page does.

Table T5. Where plastic additive manufacturers are located (5 regions)

Region What it concentrates Named producers in this directory Regional hub
Asia-Pacific More than 50 % of world additive volume (Ceresana, 2023) or 55 % of value (Precedence Research, 2025); China holds 6.0 of 9.9 Mt/yr world titanium dioxide pigment capacity Songwon, Adeka, Rianlon, Everspring, LG Chem, Aekyung, Nan Ya, Sudarshan, Platinum Industries, Fine Organics, ICL, Tosaf Regional summary; no single hub page
India PVC stabilizers, oleochemical additives and pigments Platinum Industries, Fine Organics, Sudarshan plastic additive manufacturers and suppliers in India
China Titanium dioxide and antimony/bromine feedstock; polymer stabilizer production Rianlon plastic additive manufacturers and suppliers in China
USA Titanium dioxide, carbon black and antioxidant capacity 19 companies (see below) plastic additive manufacturers and suppliers in the USA
Europe Stabilizer and flame-retardant chemistry 16 companies (see below) plastic additive manufacturers and suppliers in Europe

Plastic additive manufacturers in India#

India supplies PVC stabilizers, oleochemical additives and pigments to the world market, and three of the companies in this directory are headquartered there: Platinum Industries and Fine Organics in Mumbai and Sudarshan in Pune. Platinum Industries runs plants in Palghar, India, and Ain Sokhna, Egypt, and supplies PVC stabilizers under the Highstab name, CPVC one-packs under Unipack and oleochemical additives under Platilub. Fine Organics has produced oleochemicals from Mumbai since 1971, now lists more than 450 products, and acquired land for its first US plant in July 2025. Sudarshan, headquartered in Pune, completed the acquisition of the Heubach pigment business on 3 March 2025, adding Heubach, Hostaperm and Hostatint to its portfolio.

A fourth company in this directory, Reagens, also operates an Indian entity alongside its bases in Italy, Germany and the United States, though its headquarters stays in Italy for the purposes of Table T2. The full country profile, with every additive category these companies supply and the plants behind them, is on plastic additive manufacturers and suppliers in India.

Plastic additive manufacturers in China#

China is the largest single source of pigment and flame-retardant raw material in this directory: it holds 6.0 of the 9.9 million tonnes of world titanium dioxide pigment capacity and mined 40,000 of the 110,000 tonnes of world antimony in 2025, according to the US Geological Survey. Rianlon, founded in 2003 and headquartered in Tianjin, is the only Chinese manufacturer this reference verifies beyond that raw-material base: the company is listed in Shenzhen (300596), runs six production bases for polymer anti-aging products, held more than 300 patents as of December 2025 and broke ground on a Malaysian site in January 2026.

Everspring, sometimes assumed to be Chinese because of its regional market, is headquartered in Taichung, Taiwan, not China. The country profile for plastic additive manufacturers and suppliers in China is pending; China also produced 100,000 t of the world's bromine supply in 2024.

Plastic additive manufacturers in the USA and Europe#

Nineteen companies in this directory are headquartered in the United States and sixteen in Europe, and the two regions specialise differently: US capacity is concentrated in titanium dioxide, carbon black and antioxidants, European capacity in stabilizer and flame-retardant chemistry. The US group runs from SI Group in The Woodlands and Milliken in Spartanburg to Chemours in Wilmington, Kronos Worldwide in Dallas and Cabot in Boston, alongside Eastman, Albemarle, Tronox, Sun Chemical, Galata, PMC Group, Teknor Apex, Avient, Nouryon, Hallstar, Struktol, Mayzo, Emery Oleochemicals and J.M. Huber. The country profile for plastic additive manufacturers and suppliers in the USA is pending.

The European group centres on BASF in Ludwigshafen, Clariant in Muttenz, Lanxess in Cologne and Evonik in Essen, joined by Syensqo, Baerlocher, Brüggemann, Omya, Imerys, Perstorp, Sabo, Reagens, BYK (through ALTANA), Croda, OXEA and Peter Greven. European capacity is under cost pressure in at least one category this reference tracks: UK titanium dioxide capacity fell from 315,000 t/yr in 2024 to 165,000 t/yr in 2025, according to the US Geological Survey. The country profile for plastic additive manufacturers and suppliers in Europe is pending.

Distributors, One-Pack Suppliers and Minimum Order Quantities#

A distributor buys, stores, repacks and resells an additive without making it, which is why the same grade reaches a small compounder through Brenntag or IMCD and a large one directly from the manufacturer. Brenntag, headquartered in Essen, reported EUR 16.8 bn in revenue in 2023 and operates more than 600 locations across 72 countries. Univar Solutions, headquartered in Downers Grove, Illinois, acquired Nexeo Solutions in March 2019 and was taken private by Apollo in August 2023 at an enterprise value of USD 8.1 bn. IMCD, based in Rotterdam, and Azelis, based in Antwerp, are named here as specialty distributors, though this reference has not verified further detail on either beyond their Euronext listings; Biesterfeld and DKSH are named as distributors without additional facts confirmed. The named houses in this group are profiled in full on plastic additive distributors.

One-pack and dust-free blend suppliers sit between the manufacturer and the compounder rather than beside the distributor: Baerlocher and Reagens supply PVC one-packs, Songwon and Rianlon supply antioxidant blends, with Rianlon's line sold as U-pack, and Clariant's AddWorks and Brüggemann's One-Pack systems premix several additive functions into a single delivery form. A one-pack buyer is really buying a formulation decision, not just a chemical, since the supplier has already fixed the ratio between the stabilizer, lubricant and processing-aid components.

Minimum order quantity, lead time, packaging size and margin all differ by role in ways this reference does not carry as published figures, because none of the three is published anywhere with a verifiable source. The right question to a distributor is what the smallest packaged quantity is and how quickly it ships from local stock; the right question to a manufacturer is what the smallest production run is and how far ahead it needs to be booked. Asking the question in that role-specific form gets a usable answer faster than asking for "MOQ" without specifying which of the four supply roles is being asked.

What Do Plastic Additives Cost?#

Only a handful of plastic additive prices are published anywhere: the minerals and pigments have official US Geological Survey unit values, while every organic additive grade is quoted, not listed. The US landed, duty-paid import price for titanium dioxide pigment was an estimated USD 3,200/t in 2025, up from USD 3,170/t in 2024, USD 3,240/t in 2023 and USD 3,450/t in 2022. Antimony averaged USD 25/lb in 2025, with a peak of USD 27.50/lb in June 2025 and USD 20.30/lb in November 2025, based on an Argus assessment of 99.65 % antimony metal, CIF, that USGS quotes directly. Bromine's US import unit value was USD 2.70/kg of bromine content in 2024, and US milled talc, kaolin and barite carried unit values of roughly USD 330/t, USD 160/t and USD 220/t respectively.

No price exists in this reference for a single organic additive grade, and none is reproduced here from a paywalled price-reporting agency such as ICIS, S&P Global Commodity Insights, ChemAnalyst or SunSirs. Direction is still visible where trade data exists: Chinese DOP prices fell by RMB 1,700 to 1,750 per tonne between January and November 2025, Chinese DOP imports fell 42 % year on year while exports rose 35 % over the same nine months, and the 2026 plasticizer outlook from ResourceWise points to ample supply against flat demand. The published series by substance, where a free primary source exists, are on plastic additive prices.

How Do You Request a Quote from Plastic Additive Suppliers?#

A quote is only comparable if every supplier prices the same thing, which takes 8 items in the request: the CAS number, the product form, the polymer and process, the target dosage, the annual volume, the compliance route, the destination country and whether you want a sample. Leaving any one item out lets two suppliers quote two different things and still look like they are competing on price.

  • CAS number and generic name, not the trade name alone.
  • Product form and dosage basis: powder, granules, pastilles, liquid, dust-free blend, one-pack or masterbatch.
  • Polymer and process the additive will run in.
  • Target dosage in phr, wt% or ppm.
  • Annual volume required.
  • Compliance route needed: EU 10/2011 Union list entry, 21 CFR section or FDA Food Contact Notification.
  • Destination country for the shipment.
  • Sample request, if one is needed before committing to volume.

Send one request to several verified suppliers with the plastic additive supplier finder, which forwards one filled request to multiple companies matched to the additive category and region specified above.

How Big Is the Plastic Additive Supply Market?#

Analysts put the plastic additives market between USD 43.5 bn in 2023, according to MarketsandMarkets, and USD 63.71 bn in 2025, according to Precedence Research, and the spread has a reason. IMARC's estimate of USD 58.1 bn for 2025 sits between the two. Volume comes from a different analyst again: Ceresana put global additive volume at 36.7 Mt in 2023, of which fillers accounted for more than 19.5 Mt and plasticizers for more than 8 Mt, and Asia-Pacific took more than 50 % of that volume. No single "the market is" figure appears anywhere on this page, because none of the three analysts define the additive market the same way. Segment and regional data beyond this summary are on plastic additives market.

Why analyst market sizes disagree#

The published market sizes differ by a factor of about 1.5 because the analysts define the market differently: the higher numbers count fillers, pigments and masterbatch as additives and the lower ones do not. Ceresana's single volume figure, 36.7 Mt, is itself more than half filler by weight, which shows how much of the spread sits in scope rather than in disagreement about growth. The three published forecasts diverge for the same reason: MarketsandMarkets projects USD 57.0 bn by 2028 at a 5.6 % compound annual growth rate, IMARC projects USD 86.2 bn by 2034 at 4.26 %, and Precedence Research projects USD 100.53 bn by 2035 at 4.67 %. Each figure is a secondary source built on the analyst's own model, and this reference always names the analyst and the year rather than presenting any one number as the market.

Table T6. How the analysts differ

Source Base-year value or volume Forecast CAGR What it counts
MarketsandMarkets USD 43.5 bn (2023) USD 57.0 bn by 2028 5.6 % Value; narrower additive scope
IMARC USD 58.1 bn (2025) USD 86.2 bn by 2034 4.26 % Value; plasticizers largest type
Precedence Research USD 63.71 bn (2025) USD 100.53 bn by 2035 4.67 % Value; includes fillers, pigments and masterbatch; Asia-Pacific 55 %
Ceresana 36.7 Mt (2023) Growth about 3.3 %/yr to 2033 n/a Volume; fillers more than 19.5 Mt, plasticizers more than 8 Mt

Who is the largest plastic additive manufacturer in the world?#

No neutral ranking of plastic additive manufacturers by additive sales is published: BASF holds the broadest stabilizer portfolio in this directory after acquiring Ciba in 2009, and Songwon describes itself as the world's second-largest maker of polymer stabilizers, a position CHEManager also gave it in 2013. Neither claim is a site ranking; the method behind any ordinal claim about company size is set out separately on largest plastic additive companies.

Which raw materials set additive supply risk#

Three raw materials set most of the supply risk in this directory: antimony for halogenated flame retardant synergists, bromine for brominated flame retardants and titanium feedstock for white pigment. Antimony moved the most: its average price rose from USD 5.49/lb in 2023 to USD 10.24/lb in 2024 and USD 25/lb in 2025, peaking at USD 27.50/lb in June 2025, after China introduced export licensing in August 2024 and banned exports to the United States from December 2024; China, Russia and Tajikistan together supplied about 94,000 t of the 110,000 t of world mine production in 2025. Bromine moved less: Israel and Jordan together supplied 260,000 t of the roughly 400,000 t produced outside the United States in 2024. World titanium dioxide pigment capacity reached 9.9 Mt/yr in 2025, with China alone holding 6.0 Mt/yr. USGS names substitutes for both risks: selected organic compounds and hydrated aluminium oxide for antimony trioxide, and ground or precipitated calcium carbonate, kaolin and talc for titanium dioxide as a white pigment. Duty rates by origin, including the US antidumping orders on plasticizer imports, are on plastic additive trade, HS codes and tariffs.

How consolidation reshaped the supplier list#

Every well-known additive brand in this directory has outlived at least one owner, which is why a buyer searching for Ciba Irganox, Chemtura Naugard or Clariant masterbatch still lands on a product that exists under a different company today. The 17 transactions in Table T4 span 2009 to 2025, and the three most recent, Sudarshan's completion of the Heubach acquisition on 3 March 2025, the April 2025 sale that readopted the OXEA name, and the SI Group recapitalization that closed on 23 December 2025, show that the pace has not slowed. The practical effect for a buyer is simple: a datasheet found under an old owner's name may still describe a grade that is current today, so the brand is worth checking against Table T4 before it is dismissed as discontinued.