Topic cluster · 17 cross-linked pages

Citric acid

柠檬酸

Citric acid is the largest single fermentation chemical out of China by export tonnage and the workhorse acidulant for food, beverage, and cleaning applications. Anhydrous and monohydrate grades trade at different price points and require different packaging dryness controls. The supply base is dominated by RZBC, TTCA, and Cofco Biochemical, with corn-starch feedstock in Shandong and Anhui driving cost. US imports carry an anti-dumping duty order that has been in place since the 2009 USITC investigation and continues to be reviewed; verify against access.trade.gov before invoicing. Section 301 sits on top of the AD margin where it applies, so the duty stack on this code can run substantially above the FOB China price for first-time importers. This cluster aggregates CAS 77-92-9 across the regulatory matrix, the CAS page, and the citric-acid hub with grade selection and the buying notes that decide whether the cargo lands food-grade or technical-grade.

Glossary

Terms you will meet on this lane

Sourzi operator note

The AD margin on Chinese citric acid is the line item that decides the landed-cost margin. The cash-deposit rate at customs is the operative number, not the original 2009 investigation rate.

Curated by Sean. Primary-source verified per the regulatory drafting rules in Sourzi CLAUDE.md.

Sourcing citric acid?

Send us the spec.

Our Shanghai team responds within 24 hours with factory-direct pricing, the documentation chain mapped out, and the duty stack quantified before you commit a deposit.

Request a Quote

Free download

Free PDF: thirty-point factory audit checklist used on every Sourzi site visit before a first shipment.