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Do you provide a Certificate of Analysis (COA) with every batch?

Yes — a COA is issued for every production batch and shipped with the goods. It includes:

ParameterStandard Value
AppearanceSolid wax, light yellow to golden yellow
AromaIntense sweet floral, green-tropical undertones
Melting Point50–62 °C
Moisture≤ 3.0%
Acid Value≤ 10 mg KOH/g
Residual SolventMeets GB/T 43215-2025 limits
Purity (GC-MS)≥ 98%

Additional Reports

  • GC-MS fingerprint chromatogram per batch
  • Microbial tests (total plate count, yeast & mold, pathogens) on request
  • Heavy metals (lead, cadmium, arsenic, mercury) report
  • Pesticide residues report on request

The batch number printed on the label matches the COA, enabling full traceability back to raw material and production records.

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This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.

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Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands.