Yes. For B2B orders Top can sign a sales contract and, for ongoing supply, a quality agreement / LTA specifying grade, pack sizes, price mechanism, lead time, traceability and complaint handling.For green-plum-concrete, Q/XXXX conformance is the working acceptance basis unless the contract states otherwise (the COA and assay accompanying each lot are the evidence). We encourage buyers to attach their specification so both sides measure against the same numbers.Contracts are in EN/CN as needed.

Top treats complaints seriously:Notify us within the validity window with the lot number, COA reference and the issueWe review the retained sample and the batch COA / assay resultIf a genuine non-conformance is confirmed, we offer replacement, credit or refund per the contractFor disputes we can involve a third-party lab (SGS, Eurofins) with costs allocated by outcome.Keep the original pack sealed where possible. Our aim is a fair, documented resolution — we do not argue against our own lot data.

Every Top order ships with:COA (batch-specific, conforming to Q/XXXX — total acidity (as citric), moisture, heavy metals and micro)Assay report (key markers + heavy metals + microbiology + sensory)MSDS / SDS (CLP for EU) where applicableCommercial invoice plus packing listCertificate of originHealth / phytosanitary certificate on requestFood-use note for food buyers.Optional third-party test (SGS, Eurofins) at buyer cost. All documents in EN (and CN on request).

No. Prunus mume Siebold & Zucc. (green plum / Chinese plum) is not CITES-listed (cultivated/processed source) — no CITES permit required. Top ships the standard food/export documents.Normal food-safety regulation applies; no CITES hurdle exists for green-plum-concrete.

Top can provide: ISO 9001 (quality management), Halal and Kosher certificates (on request), organic for dedicated lots (on request), a non-GMO declaration, certificate of origin, and a health / phytosanitary certificate for food import on request. For EU we supply CLP-format SDS; for the US we reference 21 CFR food frameworks.Third-party test reports (SGS, Eurofins) at buyer cost. Confirm available certificates at order time — some are per-lot / per-request rather than blanket.

green-plum-concrete from Top is the concentrated aqueous/alcoholic extract of green plum (Prunus mume) fruit — a sour, fruity concrete, not a distilled oil. Top declares the botanical name on every COA.Origin is Guangxi cultivated orchards, China. Plum (Prunus mume, as smoked Chinese dark plum) is on China's medicine-food dual-use list; green-plum products are ordinary food raw materials in China. Top keeps the species + origin declaration so the identity is traceable. Because it is a fruit extract (not a distilled oil), it is labelled and used as a fruit concrete / extract, not an essential oil; the sourness comes from...