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Which plant part is the concrete extracted from?
From the fresh, just-opened jasmine sambac blossom — not leaf, stem or root. Top's COA states "raw material: fresh J. sambac flower".Jasmine flowers are tiny and low-yield, and the fragrance peaks at night / early morning, so flowers are hand-picked at dusk and processed immediately (often the same night) into the concrete. The concrete carries the full floral wax + aroma complex (it is the "concrete", not the de-waxed "absolute"), so it is a paste/wax-like material — exactly why it is classed as a concrete rather than a fluid essential oil.
What regulatory support and documents do you provide for import?
Top supports import compliance with: COA (Q/XXXX conformance) plus GC-MS (benzyl / indole fingerprint) plus GC-HS (solvent residue) plus sensory sheet, CLP-format SDS (EU), certificate of origin, and references to the relevant frameworks — China: GB 2760-2024 (jasmine food-use verification), GB 5009.262 (solvent residue), GB/T 11538-2006 (GC), GB/T 39010-2020, GB/T 14454.2-2008, GB/T 14455.5-2008, GB/T 22292-2008 (jasmine tea flower system), Cosmetic Safety Technical Specification; International: ISO 9235:2013, CAFFCI group standard (verify), FEMA 2598, IFRA, EU 1334/2008, EU 1223/2009, CLP 1272/2008, REACH 1907/2006, US 21 CFR 182.20 GRAS. For market-specific needs (health cert, Halal, organic) tell Top early.We document that this is...
Can you re-test or re-analyze a lot after delivery?
Yes. Top keeps a retention sample for every lot and can re-test within the shelf life on request (GC-MS benzyl / indole fingerprint, melting point / refractive index, moisture, solvent residue, heavy metals).If a buyer disputes a result, we compare our retained-sample data with the original COA; a third-party lab (SGS, Eurofins) can be engaged for an independent read, with costs allocated by outcome. Re-testing protects both sides and is a standard part of our traceability commitment.
What quality control and in-house lab capabilities do you have?
Top operates in-house QC with: GC-MS (benzyl alcohol / benzyl acetate / indole floral fingerprint, plus cis-jasmone / methyl jasmonate trace), GC-HS (headspace, solvent residue), refractometer / melting-point apparatus (concrete grade), Karl Fischer moisture, analytical balance (yield), plus titration and sensory panel (intense indolic sweet jasmine). Heavy metals per food-safety / Cosmetic Safety Technical Specification.Out-of-spec lots are blocked. We can arrange third-party verification (SGS, Eurofins) at buyer cost and keep retention samples for re-testing within shelf life.
How do you guarantee purity and authenticity of jasmine sambac concrete?
Authenticity is guaranteed byQ/XXXX conformance andPer-batch GC-MS benzyl / indole floral fingerprint plus melting point / refractive index / yield, plus solvent-residue-free confirm, plus the COA species + "fresh flower / solvent concrete" declaration (Jasminum sambac, distinct from synthetic jasmine or other floral-wax padding).Top does not dilute with carrier oils or pad with other flower wax; the COA states 100% pure solvent-extracted jasmine sambac concrete (or the agreed dilution). The natural benzyl-alcohol / benzyl-acetate / indole ratio (with cis-jasmone and methyl jasmonate trace) is the authenticity proof — synthetic or adulterated material lacks this complex.Lots failing the profile or purity...
What is your production capacity for jasmine sambac concrete?
Capacity is solvent-extraction-slot plus jasmine-flower-supply dependent: Top allocates extraction runs across committed orders. Jasminum sambac flowers are a low-yield, night-fragrance crop, so annual volume is naturally limited and weather/crop sensitive.Large volumes are feasible but need lead-time planning, ideally ahead of the flowering season. We keep a small buffer of standard grades and recommend an LTA / annual framework for steady buyers so extraction slots and flower sourcing are reserved ahead.Tell us your annual volume and we will size the allocation and confirm lead time.
What factors influence the jasmine sambac concrete price?
Main drivers:Grade — standard vs de-waxed absolute-gradeBenzyl / indole floral-fingerprint strengthOrganic certificationFlower feedstock cost (seasonal, weather/crop dependent, night-harvest logistics)Solvent extraction + dewaxing costPack size and volumeCurrency / freight.FX and freight quoted separately. Top explains the drivers on each quotation, and flags that jasmine is a market-sensitive seasonal crop.
Do you allow pre-shipment inspection (PSI) before loading?
Yes. Buyers or their inspector may perform pre-shipment inspection at Top's facility or the forwarder's warehouse before loading — verifying pack integrity, net weight, lot numbers, labelling and sealing, and drawing samples for independent lab tests (including GC-MS benzyl / indole fingerprint, melting point, moisture, solvent residue for jasmine sambac concrete).PSI also confirms correct sealed / low-oxygen packing. Top schedules PSI into the lead time and provides access to the lot and documents.If PSI finds a discrepancy, we resolve it (re-pack, re-test, replace) before the cargo is booked. PSI is coordinated alongside the agreed Incoterm.
What are the typical physicochemical specifications?
Jasmine sambac concrete is a soft, waxy, paste-to-semi-solid aromatic mass (orange-brown to deep brown, typical of jasmine concrete), with the characteristic intense, indolic, sweet, waxy jasmine scent. Typical window (each COA states the measured batch value): melting point within the concrete range (it softens/melts on warming); refractive index per the concrete; yield / non-wax content declared; solvent residue not detected (GB 5009.262).Insoluble in water; soluble in ethanol and most oils; partly soluble in fixed oils. Because it is a concrete (waxy), it is dosed/melted and diluted rather than used neat.Top conforms to Q/XXXX and reports the floral fingerprint per batch.