How to Select a Reliable Antioxidant Supplier from China

Step 1: Define Your Technical Requirements

• Purity specification (p.ej., ≥99.0%)
• Key physical parameters: punto de fusion, color, acid value, moisture
• Regulatory compliance required: FDA, EU 10/2011, ALCANZAR, RoHS
• Required documentation: COA, Ficha de datos de seguridad (MSDS), SDT, REACH SVHC declaration

Step 2: Evaluate Quality Systems

A complete COA should include: product name, número CAS, batch number, test date, all parameter results, and method references. COAs without batch numbers or test dates are a red flag.

Request an SDS in your country's format (GHS). Verify the ISO 9001 certification status of the manufacturer.

Step 3: Assess Regulatory Compliance

• ALCANZAR (EU): Verify registration for substances >1 tonne/year import
• FDA (EE.UU): Request 21 CFR compliance letter for food-contact applications
• RoHS/SVHC: Request SVHC declaration under REACH Article 33

Step 4: Evaluate Export Capability

• Experience exporting to your target country
• Correct HS code classification
• Availability of all export documents: invoice, Lista de embalaje, B/L, COO
• Flexibility on Incoterms (FOB, CIF, DDP, SALTO)

Common Red Flags

• Cannot provide batch-specific COA on request
• All COA results are suspiciously identical across batches
• No SDS available, or SDS copied from a different product
• Unable to name which manufacturer produces the material
• Price significantly below market level
• Unwilling to provide samples before a commercial order

Preguntas más frecuentes

What is the typical MOQ from China?
Via export agent: often 100 kg–1 MT with consolidated shipments. Direct factory: typically 1–5 MT per product. Samples: 100–500 g for qualification.

Contact SUNCHEM

SUNCHEM is an experienced specialty chemical export agent with full documentation capability and reliable quality sourcing. Contáctenos to start your supplier evaluation.