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Do you provide a COA for each batch?

Yes — every batch is released with a Certificate of Analysis (COA), batch-specific and traceable.

COA ContentDetail
Batch & lot numberUnique per production lot
Appearance / colorClear to pale pink, transparent
pH valueMeasured (spec 4.0–5.8)
Specific gravityMeasured (spec 1.000–1.015)
GC-MS fingerprintKey markers verified
MicrobiologicalTPC, yeast & mold, pathogens — pass/fail
Heavy metalsPb, As, Hg, Cd results
Production date & expiry24-month shelf life marking
Retained sampleStored for 24+ months
COA is issued within 24 hours of batch release and accompanies every shipment (original + scanned copy). We keep batch records for full traceability for at least 3 years.

Add your company name to the COA layout if required — we can personalize the document for your audits.

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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.