In-depth Analysis of Full Process for Taiwan Chitin Import Agency and Professional Interpretation of Key Compliance Points

1.Market Background and Operation Difficulties of Taiwan Chitin Import

In 2026,the demand for high-purity chitin raw materials in the mainland biotech industry continues to rise.With mature shrimp and crab shell extraction technology and stable product quality,Taiwan has become an important source of high-end chitin procurement for pharmaceutical enterprises in the Yangtze River Delta and Pearl River Delta.However,the import of such animal-derived products involves complex quarantine approval procedures,frequent disputes over HS code classification,and rapidly updated commodity inspection laboratory testing standards.Many enterprises face cargo detention at ports due to inconsistent documents or classification errors,resulting in additional storage costs and delivery delay losses.In particular,the format of component analysis reports issued by Taiwan side is different from the requirements of mainland customs,and the description methods of key indicators such as ash content and deacetylation degree are different,which often leads to document return and correction.

2.Core Value of Zhongshen in Chitin Import Agency

Zhongshen has been deeply engaged in cross-strait trade for more than 20 years,and has handled hundreds of Taiwan chitin import businesses.We are familiar with the differences between Taiwan’s export document format and mainland port supervision requirements,and can identify potential inconsistencies in contracts,invoices and packing lists in advance.More importantly,we have established a regular communication mechanism with customs and commodity inspection departments at major ports.For chitin and other products involved in classification disputes between code 2913.9000 and 3824.9099,we can provide pre-classification opinions to reduce inspection rate.Our operation team can simultaneously coordinate Taiwan suppliers,mainland consignees and testing institutions,change the original serial approval process to parallel promotion,and shorten the overall cycle by 8-12 working days on average.

3.Phased Breakdown of Full Process for Taiwan Chitin Import

1.Document Pre-review and Access Assessment Stage

This stage determines the compliance foundation of the entire import business.Taiwan suppliers need to provide certificates of origin,health certificates and component analysis reports that meet mainland requirements.Since 2026,the customs has implemented stricter source traceability management for animal-derived products,requiring that the fishing license number of the raw material source sea area must be indicated on the health certificate.We once encountered a case where the certificate provided by a supplier in Tainan did not mark this information,resulting in failure to declare after the goods arrived at the port.Zhongshen’s operating practice is to intervene before contract signing,provide Taiwan side with mainland official certificate templates,and assist them to apply for documents conforming to the format from local health authorities.

• Core document list: Certificate of origin (for ECFA preferential tariff),health certificate,component analysis report,bill of lading,trade contract
• Common risk points: Raw material source not indicated on certificates,wrong unit conversion of component indicators,no official perforated seal affixed
• Zhongshen’s actions: Provide standard templates,pre-review PDF versions,coordinate Taiwan suppliers for correction and supplementation

2.Port Customs Declaration and Customs Classification Dispute Handling

HS code classification of chitin is the biggest technical difficulty.According to the 2026 revised version of Tariff Schedule Explanatory Notes,chitin with deacetylation degree lower than 85% shall be classified under 2913.9000,and that higher than 85% shall be classified under 3824.9099,with a 3 percentage point difference in tariff rates between the two.An enterprise in Ningbo once declared it as 3824.9099 on its own,but after customs testing,it was determined to be 2913.9000,leading to tax recovery and late fee imposition.After receiving the order,Zhongshen will require Taiwan suppliers to provide detailed production process descriptions and third-party deacetylation degree test reports,submit classification pre-ruling application to port customs in advance,and make formal declaration after obtaining written classification opinions,so as to completely avoid the risk of post-declaration document modification.

3.Commodity Inspection and Quarantine and Laboratory Testing Link

Taiwan chitin is a Class II risk product in the Risk Classification Catalogue of Imported Non-edible Animal Products,and the Import Animal and Plant Quarantine Permit must be processed.According to the 2026 new regulations,the permit application shall be submitted at least 15 working days before goods shipment,and the product description in the application form shall be completely consistent with the health certificate.During on-site commodity inspection,the batch number and production date on the goods label will be checked against the declaration materials,and samples will be sent to the laboratory for heavy metal and microbial indicator testing.Zhongshen has established data docking channels with commodity inspection laboratories in multiple regions,which can query testing progress in real time,and immediately start retesting procedures when abnormal data is found,to avoid overdue cargo detention.

4.Actual Case: Manager Jiang’s Chitin Import Experience

Manager Jiang’s company is located in Suzhou Industrial Park.In March 2026,it imported 5 tons of medical-grade chitin from Taichung for the first time.Only after signing the contract did it find that the Import Animal and Plant Quarantine Permit was required,which was expected to take 15 working days.After our intervention,we found that the ash content description in the component report provided by its Taiwan supplier was "ash content 2.5%",while mainland commodity inspection required it to be converted into the standard expression of "ash ≤ 3.0%".We immediately coordinated the supplier to re-conduct testing,and at the same time started the expedited permit processing channel,leveraging our filing qualification in the commercial department to shorten the approval cycle to 8 working days.All pre-approvals were completed 3 days before the goods arrived at the port,and the customs clearance was finally completed smoothly,avoiding 14 days of container detention fee and liquidated damage loss.Manager Jiang later handed over all annual procurement plans to our agency for execution.

5.Practical Value of Professional Agency for Import Efficiency and Risk Control

The professionalism of Taiwan chitin import is reflected in the accurate grasp of differences in cross-strait regulatory rules.Zhongshen identifies problems at the source through pre-document review; changes serial processes to parallel promotion through port resource coordination; changes post-event remedy to pre-event prevention through classification pre-ruling and testing tracking.2026 data shows that enterprises operating independently have an average customs clearance cycle of 22 working days,with an inspection rate of about 35%; while for similar businesses operated by our agency,the average cycle is shortened to 14 working days,and the inspection rate is reduced to less than 12%.Such efficiency improvement is directly translated into enterprises’ capital turnover advantages and market response capabilities.