Full Process of Chemical Import & Export Customs Clearance: From Hazard Label Determination to Tax Refund Practice

Core Pain Points and Regulatory Red Lines for Chemical Import & Export Customs Clearance

As a high-risk trade category,chemical products need to cross multiple regulatory thresholds during customs clearance.Announcement No.3 of 2026 by the General Administration of Customs clearly requires that all imported and exported chemicals must pass the "Hazardous Characteristics Classification Identification"; otherwise,they will face a fine of 50,000 to 100,000 yuan and cargo detention.In a case handled by Supervisor Ye at a chemical enterprise,a batch of "non-hazardous" coatings was detained by Hamburg Port Customs in Germany for 17 days because the MSDS did not mark flammable solvents,eventually leading to a customer claim of 32,000 euros due to non-compliant declaration.

The anti-dumping early warning system shows new features in 2026: the EU’s anti-dumping duty on Chinese styrene has been extended to 2028,and involved enterprises need to prepare additional origin declarations; the US EPA has added "phthalate" testing requirements for PVC.These changes require enterprises to complete three basic verifications before customs clearance: whether HS code classification is accurate,whether MSDS data is consistent with product actual measurements,and whether the destination country’s environmental regulations have been updated.

Destination Port Certification and Practical GHS Label Standards

Exporting chemicals to different countries requires targeted certification preparation: the EU requires REACH Regulation Article 18 authorization,the US requires submission of DOT hazardous goods transport documents,and Southeast Asian RCEP member countries can reduce tariffs through Form R origin certificates.In chemical inspection at Shanghai Port,it was found that 23% of rejected declarations were due to label issues— a dye enterprise had its declaration rejected and required rectification on the spot by the Singapore Port Authority because it did not use red-background white-text warning signs in accordance with GHS standards.

Key Operations: Before chemical declaration,the 5 elements of GHS labels must be verified: pictogram color (red/yellow/blue),signal word (Warning/Danger),precautionary statement number (P210/P233),hazard statement (H225 Flammable liquid),product identifier (CAS number such as 2026-12-3).Non-compliant labels will face a fine of 300-500 euros per label at the destination port.

Anti-Dumping Early Warning and Export Tax Refund Optimization

In 2026,the chemical export tax refund policy shows a "stepwise adjustment" feature: the tax refund rate for basic chemicals (such as sulfuric acid) remains at 13%,while that for fine chemicals (such as electronic-grade phosphoric acid) increases to 16%.Manager Lei successfully increased the export tax refund rate by 3 percentage points and the single-order tax refund by 420,000 yuan through the "deep processing transfer of materials" model when acting as an agent for a semiconductor material enterprise.

Anti-dumping early warning requires establishing a dynamic tracking mechanism:

• Verify HS code classification immediately (e.g.CAS number 71-55-6 corresponds to ethanol) to avoid additional anti-dumping duties due to classification errors
• Submit the "price commitment application" to the customs 7 working days in advance; the EU added an anti-dumping investigation on Chinese methyl methacrylate in 2026
• Adopt the "offshore account + domestic settlement" combined model when collecting foreign exchange to avoid exchange rate fluctuation risks caused by U.S.bond interest rate hikes

Practical Case: A Jiangsu chemical enterprise exporting phthalic anhydride to Argentina suffered a single-order loss of 180,000 yuan because it failed to check the Argentine anti-dumping duty warning (tax rate 5.2%).Zhongshitong helped the enterprise avoid similar risks in subsequent businesses through the "30-day pre-export tariff check + fast origin certificate processing" solution.

Foreign Exchange Collection Safety and Customs Clearance Pitfall Guide

There are three major pitfalls in chemical foreign exchange collection:

• "Document discrepancy" risk in 30% advance payment +70% payment against documents settlement (e.g.bill of lading date is earlier than MSDS update date)
• Chemical foreign exchange collection to U.S.and EU-sanctioned countries (such as Iran) is intercepted by the SWIFT system
• Demurrage fee pitfall: hazardous goods storage fee is 0.8-1.2 yuan per cubic meter per day; Shanghai Port hazardous goods yard rent increased by 15% in 2026

Pitfall Avoidance Checklist:

• MSDS documents must include: flash point (≤60°C needs to be marked as flammable),boiling point (>150°C needs special packaging),explosion limit (1.4-7.7% needs hazardous goods declaration)
• Necessary materials for export tax refund: special VAT invoice (90-day certification period),export customs declaration form (tax refund within 90 days of departure date)
• Additional documents required for hazardous goods declaration: "Shipborne Hazardous Goods Declaration Form","Packaging Inspection Certificate","Maritime Bureau Hazardous Goods Fitness Certificate"

Zhongshitong helped clients achieve the following in 2026 through the dual engines of "national port remote declaration + global agent network": the average time for hazardous goods customs clearance was shortened to 48 hours (Shanghai Port),the export tax refund cycle was compressed to 15 working days,and the coverage rate of anti-dumping risk early warning reached 100%.