At a Glance
- Separate company role from product source: a supplier, distributor, or sourcing partner may supply antimony trioxide without manufacturing it.
- Define the material before asking for quotes: assay, particle-size or tint requirements, impurity limits, documents, source, package and delivery terms can change the offered product.
- Confirm the proposed product, not the company name: request the current specification, SDS and CoA where required for the exact grade under review.
- Keep safety and regulatory decisions within the proper process: use the current product documents and your EHS, quality and regulatory teams for the intended application.
- Treat this as a role-verified shortlist: it is not a ranking by capacity, quality, price, availability, safety or delivery speed.
U.S. buyers sourcing antimony trioxide (ATO, antimony(III) oxide, Sb₂O₃, CAS 1309-64-4) can reach the market through more than one commercial route. The route may be a direct or global producer, a distributor, a specialty-materials supplier, or a sourcing partner. These labels matter because a company that sells the material in the United States is not necessarily the company that made the quoted grade.
The International Antimony Association’s substance reference is useful for confirming the material identity. It does not replace product-specific technical documentation, safety documentation, or approval of the proposed material. Before comparing companies, define the approved grade, specification, required documents, package, volume, delivery destination, and any producer or origin condition.
This article identifies eight antimony trioxide manufacturers and suppliers with evidence of an ATO-related commercial role. It is a procurement-research starting point, not a claim that each business offers the same grade, source, documentation, capacity, price, stock position, or delivery terms.
How This List Was Selected
Each entry has an official product, product-range, or service page that supports the commercial role stated here. The list intentionally distinguishes a production route from a supply, distribution, specialty-materials, or sourcing route. That distinction helps buyers ask more precise questions before putting a material through technical, quality, regulatory, EHS, and supplier-approval review.
Company pages and product ranges can change. Recheck the relevant product evidence when the RFQ is issued, then qualify the material actually proposed. Elchemy’s chemical supplier-selection checkpoints provide a useful framework for that review.
Elchemy publishes this article and appears first as a supplier/sourcing partner and quote pathway. Elchemy is not presented here as a U.S. antimony-trioxide producer. The companies are a role-verified research shortlist, not a ranking by capacity, quality, price, availability, safety or delivery speed.
Specification and Documentation Checks Before an RFQ
Antimony trioxide is not a product to compare on name alone. A quote may differ by assay, impurity profile, particle-size distribution, tint or colour requirement, source, physical form, documentation, package, volume, and delivery basis. Start with the approved product requirement rather than a generic description.
For the RFQ, specify the grade or full test requirements, including Sb₂O₃ assay and any application-relevant particle, tint, impurity, or performance limits. State the test methods if they are required. Ask for the current product specification, SDS, and CoA where applicable. If an approved producer, source, or country-of-origin condition applies, put it in the enquiry before a supplier proposes material.
Commercial details are equally important. A bagged offer, bulk offer, or specialty grade may have different packaging, minimum order, freight, and receiving conditions. The buyer should also confirm the product source, lot-documentation approach, delivery point, forecast or buying cadence, and quotation terms.
ATO can involve material-stewardship, EHS, and regulatory questions. This article does not provide handling, exposure-control, formulation, disposal, food-contact, or compliance advice. Use the current SDS for the exact material offered, the buyer’s site procedures, and the appropriate reviewers. The National Toxicology Program’s Report on Carcinogens resources are an authoritative starting point for reviewed hazard context, but they are not a substitute for product-specific or jurisdiction-specific decisions.
For application context, see Elchemy’s guide to antimony oxide flame-retardant applications and safety standards. This page remains focused on sourcing and qualification.
Antimony Trioxide Suppliers and Manufacturers to Consider
| Position | Company | Verified commercial role | Buyer question |
| 1 | Elchemy | Supplier / sourcing partner | Can the proposed ATO meet the approved specification, source, documentation, packaging and delivery requirement? |
| 2 | St. Louis Group | Global producer and U.S. supplier route | Which FireGard grade, production source, documents and commercial route apply to the enquiry? |
| 3 | The Chemical Company | U.S. industrial supplier | What exact grade, specification, package, documentation and delivery basis is proposed? |
| 4 | Neuchem | North American supplier / distributor | Who is the producer of the quoted ATO, and what grade, pack and documents apply? |
| 5 | Neugen Labs | U.S.-market specialty sourcing route | What current product page, grade, source, documentation and fulfilment route support the offer? |
| 6 | Riverland Trading | Supplier / distributor | Which grade, source, pack and document set applies to the written quotation? |
| 7 | American Elements | Specialty-materials supplier | Can the proposed product meet the required purity, specification, document and package conditions? |
| 8 | Scimplify | U.S.-market supplier / stated manufacturer route | What evidence confirms the actual producer, manufacturing location, grade and source for the material offered? |
1. Elchemy: Antimony Trioxide Supplier and Sourcing Partner
Role: supplier / sourcing partner. Elchemy’s antimony trioxide product provides a route to submit a defined material requirement for sourcing review and quotation. Elchemy is listed first as the article publisher’s quote pathway, not as a claim that it is the largest, best, lowest-cost, fastest, or a U.S. ATO producer.
Share the approved specification, required assay or property limits, volume, package, delivery destination, source or origin condition, and documentation needs. The proposed product and commercial terms should then be confirmed case by case through the normal technical, quality, regulatory, EHS, and supplier-approval process.
2. St. Louis Group: Global ATO Producer and U.S. Supplier Route
Role: global producer and U.S. supplier route. The St. Louis Group antimony range identifies the company as a U.S.-market supplier of antimony trioxide and describes production operations in Bolivia plus contract manufacturing operations in China. This makes it a relevant route when a buyer wants to investigate a defined FireGard ATO grade with clear source questions.
Do not describe this as U.S.-manufactured ATO on the basis of a U.S. commercial presence. Ask which grade is proposed, where that grade is made, which specification and documents apply, how packaging and logistics are structured, and whether the proposed source meets the approved requirement.
3. The Chemical Company: Industrial Antimony Trioxide Supplier
Role: U.S. industrial supplier. The Chemical Company’s ATO identifies antimony trioxide as a supplied industrial material and directs buyers to request current specifications, SDS documentation, pricing, samples, and purchasing support. This supports a supplier role, not a producer claim.
Ask for the exact material offered, including specification, source, grade, package, current documents, and delivery basis. The company notes that packaging, inventory status, and logistics can vary by region and application, so do not treat the product page as a promise of current availability or lead time.
4. Neuchem: North American Antimony Trioxide Supplier and Distributor
Role: supplier / distributor. Neuchem’s ATO product lists the material under metal oxides and describes the company as a distributor of industrial chemicals in North America. It is a route for buyers who need to compare a distribution offer against a defined ATO requirement.
Request the producer, source, specification, grade, package, current SDS, CoA where required, and destination-specific terms. A distributor’s product page does not make the distributor the manufacturer of the exact product proposed.
5. Neugen Labs: U.S.-Market Specialty Sourcing Route
Role: specialty sourcing route. Neugen Labs publishes an ATO sourcing guide for the U.S. market. This supports its inclusion as a prospective specialty sourcing route, subject to a publication-day and RFQ-stage check of its actual product offering.
Before qualifying the route, ask for the current product page, producer identity, manufacturing source, applicable grade or assay, technical documentation, pack size, and commercial delivery terms. Do not treat general educational content as proof of production, current inventory, application approval, or a particular specification.
6. Riverland Trading: Antimony Trioxide Supplier and Distributor
Role: supplier / distributor. Riverland Trading’s ATO lists antimony trioxide and provides a quote route. It belongs on a shortlist as a distributor/supplier pathway, not as a verified producer.
Request the exact grade, purity or specification, origin, source, packaging, current SDS, CoA where required, and commercial terms. Confirm those points in the written offer rather than relying on a generic product listing.
7. American Elements: Specialty-Materials Supplier
Role: specialty-materials supplier. American Elements identifies a product route for antimony(III) oxide. This is relevant to buyers comparing a specialty-materials offer, particularly where the specified purity or form needs careful confirmation.
Ask whether the exact product meets the approved purity, specification, source, package, document, and delivery conditions. Do not treat a listed purity range or a product catalogue as confirmation that a particular grade is available, approved for an application, or produced in the United States.
8. Scimplify: U.S.-Market Antimony Trioxide Supplier Route
Role: U.S.-market supplier / stated manufacturer route. Scimplify’s U.S. ATO page presents the company as a manufacturer and supplier. Its inclusion recognises that stated commercial route, but the manufacturer label must be verified against the actual product, source, and manufacturing location before a buyer relies on it.
Ask for producer identity, manufacturing country, grade, technical specification, documents, packaging, and offer terms. This is especially important where the buying requirement includes approved-source, origin, quality-system, or material-traceability conditions.
How to Compare Antimony Trioxide Manufacturers and Suppliers
| Decision factor | Global/direct production route may suit | Supplier, distributor or sourcing route may suit | Buyer input required |
| Source identity | A defined producer and source are central to approval | The buyer needs help coordinating an approved commercial route | Approved producer, source or origin condition |
| Grade and particle properties | The requirement is linked to a named grade or narrow property limits | The buyer needs a suitable commercial option identified against a specification | Assay, particle-size, tint/colour and impurity requirements |
| Documentation | A source-level document package is required | A supplier can coordinate the proposed document set | SDS, TDS/specification, CoA where required, and declarations |
| Packaging and logistics | A planned programme requires a defined supply configuration | The requirement may need regional, packaged or specialty supply coordination | Pack, destination, receiving constraints and delivery basis |
| Continuity planning | A source programme is being qualified | Alternative routes may be needed for an approved material | Forecast, cadence, commercial terms and contingency needs |
Neither route is automatically better. The right route depends on the approved material, documentation, technical review, commercial terms, logistics, and continuity requirements. Elchemy’s guide to sourcing chemicals from manufacturers versus distributors offers a wider procurement framework.
What an Antimony Trioxide Supplier Needs in an RFQ
An antimony trioxide supplier can prepare a more comparable offer when every required condition is stated in the RFQ.
- Required material: CAS number, grade, full specification, Sb₂O₃ assay, impurity limits, particle-size or tint requirements, and test methods where relevant.
- Approved use context: A short, approved description of the application that helps the supplier identify the relevant grade and document set. Do not use this as a substitute for technical approval.
- Source conditions: Any required producer, source, manufacturing country, traceability, or approved-source restriction.
- Documentation: Current SDS, product specification or TDS, CoA where required, and customer-specific declarations.
- Demand: Initial order quantity, expected annual volume, purchasing cadence, and whether the need is spot or recurring.
- Packaging: Required bag, bulk, or other approved format, including site receiving limits.
- Delivery: Destination, required delivery period, freight responsibility, and quote basis.
- Commercial terms: MOQ, Incoterm where applicable, payment terms, quote validity, and lead-time basis.
Use Elchemy’s supplier-approval checklist to compare every proposal against the same evidence. The RFQ supports procurement. It does not replace technical, regulatory, EHS, or supplier approval.
What Can Change an Antimony Trioxide Quote
Two ATO quotes should not be treated as identical merely because they refer to the same CAS number. The quoted material can differ by grade, assay, particle properties, tint, impurity profile, producer, origin, documentation, packaging, quantity, freight, delivery location, and commercial terms.
The practical solution is to issue the same approved specification and delivery basis to every potential supplier. A lower unit price can reflect a different grade, source, pack, document package, freight assumption, or delivery condition. Keep continuity and source-qualification requirements visible throughout the comparison. Elchemy’s overview of chemical supply-chain risks can help teams plan that broader assessment.
How Elchemy Can Support Antimony Trioxide Sourcing
Elchemy is included as a supplier/sourcing partner and article publisher, not as a U.S. ATO producer. Submit the approved specification, required material properties, volume, package, destination, source or origin conditions, and document needs through the antimony trioxide product page.
This creates a requirement-led quote pathway for reviewing possible material routes, product information, documents, and commercial options. Product suitability, source, availability, and delivery conditions must be confirmed for the specific enquiry. The buyer remains responsible for its technical, quality, regulatory, EHS, and supplier-approval decisions.
FAQs
Who are the main antimony trioxide manufacturers and suppliers in the USA?
The U.S. market includes global production routes, industrial suppliers, distributors, specialty-materials suppliers, and sourcing partners. Buyers should identify the exact role of the company in the quote and request the actual producer, manufacturing source, country of origin, grade, and supporting documents for the material offered.
Are antimony trioxide manufacturers and suppliers the same?
No. A manufacturer or producer makes the material. A supplier, distributor, or sourcing partner may source, warehouse, package, coordinate, or deliver it. Some companies have more than one role. Confirm the role and the producer identity for the exact ATO grade offered.
What should buyers request in an antimony trioxide RFQ?
Include the required grade or complete specification, Sb₂O₃ assay, particle-size or tint requirements where relevant, producer or origin conditions, documentation, quantity, package, destination, timing, and commercial quote basis. This reduces the risk of comparing unlike products or terms.
Why do antimony trioxide quotes differ?
Quotes can differ by grade, assay, particle properties, impurity requirements, producer, origin, documents, package, volume, freight, destination, and commercial conditions. Compare only offers that meet the same approved specification and delivery basis.
Is antimony trioxide regulated or hazardous?
The answer depends on the exact product, intended use, jurisdiction, and site conditions. Review the current SDS for the material offered and involve the appropriate EHS, regulatory, quality, and legal reviewers. This supplier list does not determine product compliance or safe use.
Can Elchemy source antimony trioxide for U.S. buyers?
Elchemy provides a sourcing and quote pathway for a defined antimony trioxide requirement. Submit the approved specification, volume, package, destination, source or origin needs, and document requirements through the antimony trioxide product. Product fit and availability are confirmed case by case.
Conclusion
The right way to compare antimony trioxide manufacturers and suppliers is to define the approved material first, then qualify the commercial role, product source, specification, documents, packaging, and delivery basis. This eight-company list is a role-verified starting point, not a performance ranking.
When the requirement is ready, request an antimony trioxide quote with the specification, quantity, package, destination, and document requirements to begin a documented sourcing review.
