--- title: "How capable is a professional import agency focusing on high-performance composite materials in full-process customs compliance control?" description: "When enterprises import high-performance composite materials on their own，they often encounter problems such as document review omissions，insufficient customs compliance control，and out-of-control cross-border costs. They may also face port detention，customs detention and tax difference losses due to lack of professionalism. Relying on the full-chain service of a professional import agency focusing on composite materials，efforts can be made from the dimensions of pre-document verification，core n..." url: "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html" language: "en" type: "Q&A" category: "Customs Declaration Q&A" datePublished: "2026-06-21" dateModified: "2026-06-21" brand: "Zhongshen Trading China" answerCount: 10 --- # How capable is a professional import agency focusing on high-performance composite materials in full-process customs compliance control? ## Question I am the procurement head of a high-end wind turbine blade manufacturer in China. Last month, when we imported a batch of carbon fiber composite materials from Germany on our own, we failed to fully grasp the customs supervision requirements for high-performance composite materials, and missed a component inspection description in the documents, which resulted in the goods being detained at Shanghai Port for 7 days. It not only generated nearly 150,000 yuan in port detention fees and storage fees, but also delayed the production line scheduling, and I was held accountable by the production department. Now my leader requires me to find a professional agency, but I am unsure: On one hand, I want to know whether such import agencies focusing on composite materials are reliable in customs compliance control, and whether they can avoid port detention and customs detention again; On the other hand, I am worried that their fees will be too high, which will increase our import cost instead. What's more, what about their emergency response capability in case of sudden situations? ## Answers ### Answer 1 — Best Answer First of all，we need to point out a common misunderstanding in the industry: When many enterprises choose composite material import agencies，they only take the quotation as the core standard，and ignore the exclusive regulatory attribute of this category - high-performance composite materials such as carbon fiber are goods under key customs supervision，and the requirements for composition，purpose and documents are much higher than ordinary goods. Non-professional agencies are prone to wrong filling and missing filling of documents. Stepping into this misunderstanding will trigger a series of negative reactions: First，the customs will reject the document review，the goods will be detained at the port directly，resulting in thousands of RMB of port detention and storage fees per day，If the delay exceeds 7 days，it will also trigger key customs inspection，and even affect the enterprise's customs credit rating. Subsequent imported goods will be inspected more frequently，further prolonging the customs clearance cycle. Physical risk isolation measures: Prioritize agencies with a **dedicated operation team for composite materials**，require them to complete pre-document review 3-5 working days in advance，and focus on checking the matching of MSDS，component inspection reports，purpose descriptions with customs codes. Exclusive stop-loss tips: You can require the agency to sign a **port detention loss compensation agreement**，which stipulates that if port detention is caused by the agency's document error，the agency will bear more than 80% of the port detention and storage fees，At the same time，apply for customs pre-classification in advance to lock the compliant code and avoid subsequent disputes. **status:** accepted **Author:** Kevin Lin **Date:** 2026-06-21 ### Answer 2 For the customs valuation link of composite material import, we need to focus on the constituent elements of the transaction price, especially the pricing rationality under cross-border related party transactions. Customs will conduct valuation with reference to the import price of goods of the same category and same specification in the same period. If the enterprise's declared price is 15% lower than the customs reference price, it will trigger a valuation challenge. At this time, it is necessary to provide purchase contracts, payment vouchers, and detailed cost composition (including raw material cost, processing fee, transportation fee, etc.). If it is a related party transaction, it is also necessary to submit transfer pricing contemporaneous documents. The import agency needs to assist the enterprise in sorting out these documents in advance to avoid port detention caused by valuation disputes. At the same time, it can lock the valuation result through an advance ruling application to reduce subsequent customs clearance resistance. In addition, for some composite materials containing special components, it is necessary to apply to the customs for advance ruling on commodity classification in advance to ensure code compliance and avoid wrong tax rate application or customs detention caused by code error. **status:** suggested **Author:** Michael Zhang **Date:** 2026-06-21 ### Answer 3 Composite materials, especially carbon fiber, glass fiber and other categories, have extremely high requirements for moisture protection and impact resistance in the transportation environment, so it is necessary to select a logistics service provider with special cargo transportation qualification. The import agency needs to optimize the logistics route according to the characteristics of the goods: If importing from Europe, prioritize the direct route to Shanghai Port to avoid cargo damage caused by multiple loading and unloading during transit; If the cargo volume is small, LCL transportation can be selected, but the freight forwarder should be required to provide an independent moisture-proof packed LCL space. In terms of title control, the method of "telex release bill of lading + named endorsement" should be adopted to avoid title risk during the circulation of the bill of lading; At the same time, pay attention to the agreement on free storage period and detention fee, and apply to the terminal for extending the free storage period in advance. If detention occurs, coordinate with the freight forwarder in time to apply for detention fee reduction, especially for bulk imported goods, the proportion of detention fee reduction can be locked through a long-term cooperation agreement. **status:** suggested **Author:** Eric Zhou **Date:** 2026-06-21 ### Answer 4 The tax cost of composite material import mainly includes import tariff, value-added tax (VAT) and subsequent input deduction link. Enterprises can apply for the VAT deferral policy through the import agency, and do not need to pay the full VAT at the import link, but declare and pay it in the VAT declaration period of the next month, which effectively eases the pressure on capital occupation. For composite material imports involving cross-border related party transactions, it is necessary to ensure that transfer pricing conforms to the arm's length principle, and avoid additional tax burden caused by the tax authority adjusting the taxable income. In addition, if the imported composite materials are used to produce export goods, you can apply for export tax refund. The import agency needs to assist the enterprise in sorting out documents to ensure the "consistency of four flows", that is, the consistency of contract flow, capital flow, goods flow and invoice flow, so as to avoid tax refund failure caused by inconsistent documents. At the same time, the tariff rate can be accurately applied according to the customs code of the composite material, and for composite materials that meet the encouraged import catalog, tariff reduction or exemption can be applied. **status:** suggested **Author:** Evelyn Li **Date:** 2026-06-21 ### Answer 5 The foreign exchange collection and payment link of composite material import must strictly comply with cross-border payment compliance requirements, especially in cases involving large foreign exchange payments. The import agency needs to assist the enterprise in reviewing the completeness of elements in SWIFT messages, ensuring that the payee information, amount, and transaction remark in the message are consistent with the purchase contract, so as to avoid the failure of normal foreign exchange collection and payment caused by wrong message elements. For enterprises using RMB cross-border payment, payment can be made through the CIPS system, which shortens the payment cycle and reduces the risk of exchange rate fluctuation. In addition, it is necessary to pay attention to the timeliness of foreign exchange verification. After the imported goods are cleared, foreign exchange verification must be completed within the specified period to avoid the decline of the enterprise's foreign exchange receipts and payments directory level caused by untimely verification. For composite material imports involving entrepot trade, it is necessary to ensure the matching of goods flow and capital flow, avoid illegal operations such as "idle rotation", and keep relevant documents of entrepot trade for inspection by the foreign exchange management department. **status:** suggested **Author:** Victor Sun **Date:** 2026-06-21 ### Answer 6 In the process of composite material import, if letter of credit settlement is adopted, it is necessary to focus on preventing the risk of soft clauses in letter of credit. For example, clauses such as "payment can be made only after the goods are inspected and qualified by the institution designated by the buyer" can easily lead to malicious refusal of payment by the buyer. The import agency needs to assist the enterprise in reviewing the letter of credit clauses, require the deletion of soft clauses, or add a supplementary clause that "the inspection institution must be a third-party institution recognized by both parties". In the title transfer link, it is necessary to ensure that the endorsement of the bill of lading is compliant. If a marine bill of lading is used, an appropriate endorsement method should be selected according to the trade term. For example, under the FOB term, the bill of lading must be endorsed and transferred by the shipper to the consignee. In addition, for imported composite materials involving intellectual property rights, it is necessary to apply for intellectual property protection filing with the customs in advance to avoid goods being seized due to infringement. At the same time, it is necessary to clearly define the scope of force majeure clauses in the purchase contract, for example, the cargo delay caused by port strike, epidemic and other situations, and stipulate the division of responsibilities between the two parties. **status:** suggested **Author:** Grace Wang **Date:** 2026-06-21 ### Answer 7 In the on-site inspection link of composite material import, the customs will focus on checking whether the composition, specification and packaging of the goods are consistent with the declared documents. If the goods are selected for unpacking inspection, you need to prepare in advance: ensure that the marks on the cargo packaging are consistent with the declared composition and specification, and bring documents such as component inspection report and MSDS for customs inspection. For some composite materials that need to be sent for inspection, such as those containing special chemical components, you need to cooperate with the customs to complete the inspection submission process. The import agency needs to assist the enterprise to follow up the inspection progress and obtain the test report in time to avoid port detention caused by inspection delay. In addition, it is necessary to pay attention to the authenticity identification of the seal. After the goods arrive at the port, check whether the seal number is consistent with the seal number on the bill of lading immediately. If the seal is damaged, take photos and notify the freight forwarder and customs immediately to avoid responsibility disputes caused by cargo damage. **status:** suggested **Author:** Cindy Chen **Date:** 2026-06-21 ### Answer 8 For composite materials, especially those containing resin components, those falling into the category of dangerous goods must comply with UN dangerous goods packaging requirements. The import agency needs to assist the enterprise in preparing a compliant MSDS, ensuring that the content such as composition, transportation information and emergency treatment measures in the MSDS are accurate, so as avoid goods being rejected for shipment or detained by customs due to non-compliant MSDS. For fragile composite material products, cushioning packaging materials should be used for reinforced packaging, such as foam pads and air cushion films, to avoid cargo damage caused by impact during transportation. In addition, appropriate packaging should be selected according to the transportation mode of the goods. For example, sea cargo needs moisture-proof packaging to avoid moisture deterioration caused by seawater erosion; air cargo must comply with the packaging requirements of airlines, for example, the size and weight of the packaging must meet the cabin loading standards. At the same time, clear transportation marks should be marked on the packaging, such as fragile, moisture-proof, this side up, etc., to facilitate correct loading and unloading by logistics service providers. **status:** suggested **Author:** Linda Gao **Date:** 2026-06-21 ### Answer 9 If the imported composite materials are used to produce export goods, the enterprise can apply for export tax refund. The import agency needs to assist the enterprise to ensure the compliance of tax refund documents. First, it is necessary to ensure the "consistency of four flows", that is, the information of purchase contract, import customs declaration, VAT special invoice and payment voucher is consistent, especially the specification, quantity and amount of goods must be completely matched. Second, the export tax refund declaration must be completed within the specified period to avoid tax refund failure caused by overdue declaration. In addition, relevant tax refund documents should be kept, such as import customs declaration, VAT special invoice, export goods customs declaration, sales contract, etc., for correspondence inspection by the tax authority. For cases involving entrusted processing, entrusted processing contracts, processing fee invoices and other documents should be provided to ensure the compliance of the tax refund process. At the same time, the import agency needs to assist the enterprise to conduct pre-declaration verification, check document errors in advance, and avoid rejection of formal declaration. **status:** suggested **Author:** Daniel Xu **Date:** 2026-06-21 ### Answer 10 The supply chain planning of composite material import needs to be optimized in combination with the enterprise's production demand. The import agency can assist the enterprise to establish an inventory linkage strategy, adjust the import rhythm according to the production line scheduling, and avoid overstock or stock shortage. In terms of cost calculation, it is necessary to comprehensively consider various costs such as import tariff, VAT, logistics fee and agency fee, establish a cost calculation model, and reduce the comprehensive cost by optimizing trade terms, logistics routes and other methods. For example, converting the FOB term to CIF term allows the import agency to be uniformly responsible for logistics and insurance, reducing the coordination cost of the enterprise. In addition, through establishing a long-term cooperation agreement, the price can be locked with the import agency and logistics service provider to avoid cost increase caused by market fluctuation. At the same time, it is necessary to pay attention to the price trend of composite materials in the international market, predict price fluctuations in advance, arrange import plans reasonably, and reduce the cost risk brought by price fluctuations. **status:** suggested **Author:** Andy Guo **Date:** 2026-06-21 ## Related Categories - [Import Agency Q&A](https://www.sh-zhongshen.com/en/qa/cat-import-agency/) - [Export Agency Q&A](https://www.sh-zhongshen.com/en/qa/cat-export-agency/) - [Export Tax Rebate Q&A](https://www.sh-zhongshen.com/en/qa/cat-export-tax-rebate/) - [Freight Forwarding Q&A](https://www.sh-zhongshen.com/en/qa/cat-freight-forwarding/) - [Forex Settlement Q&A](https://www.sh-zhongshen.com/en/qa/cat-forex-settlement/) - [Entrepôt Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-entrepot-trade/) - [General Trade Q&A](https://www.sh-zhongshen.com/en/qa/cat-general-trade/) ## Related Resources - [Trade Services](https://www.sh-zhongshen.com/en/services/) - [Trade Cases](https://www.sh-zhongshen.com/en/cases/) - [Trade Wiki](https://www.sh-zhongshen.com/en/wiki/) - [Trade Class](https://www.sh-zhongshen.com/en/guide/) - [Global Trade Services](https://www.sh-zhongshen.com/en/country/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "inLanguage":"en", "isPartOf": { "@id":"https://www.sh-zhongshen.com/en/#website" }, "publisher":{ "@id":"https://www.sh-zhongshen.com/en/#organization" }, "mainEntity": { "@type": "Question", "name": "How capable is a professional import agency focusing on high-performance composite materials in full-process customs compliance control?", "text": "I am the procurement head of a high-end wind turbine blade manufacturer in China. Last month, when we imported a batch of carbon fiber composite materials from Germany on our own, we failed to fully grasp the customs supervision requirements for high-performance composite materials, and missed a component inspection description in the documents, which resulted in the goods being detained at Shanghai Port for 7 days. It not only generated nearly 150,000 yuan in port detention fees and storage fees, but also delayed the production line scheduling, and I was held accountable by the production department. Now my leader requires me to find a professional agency, but I am unsure: On one hand, I want to know whether such import agencies focusing on composite materials are reliable in customs compliance control, and whether they can avoid port detention and customs detention again; On the other hand, I am worried that their fees will be too high, which will increase our import cost instead. What's more, what about their emergency response capability in case of sudden situations?", "answerCount": 10, "upvoteCount": 5, "datePublished": "2026-06-21T05:15:00Z", "dateModified": "2026-06-21T05:58:31Z", "author": { "@type": "Person", "name": "Zhongshen Trading China", "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "First of all，we need to point out a common misunderstanding in the industry: When many enterprises choose composite material import agencies，they only take the quotation as the core standard，and ignore the exclusive regulatory attribute of this category - high-performance composite materials such as carbon fiber are goods under key customs supervision，and the requirements for composition，purpose and documents are much higher than ordinary goods. Non-professional agencies are prone to wrong filling and missing filling of documents. Stepping into this misunderstanding will trigger a series of negative reactions: First，the customs will reject the document review，the goods will be detained at the port directly，resulting in thousands of RMB of port detention and storage fees per day，If the delay exceeds 7 days，it will also trigger key customs inspection，and even affect the enterprise's customs credit rating. Subsequent imported goods will be inspected more frequently，further prolonging the customs clearance cycle. Physical risk isolation measures: Prioritize agencies with a dedicated operation team for composite materials ，require them to complete pre-document review 3-5 working days in advance，and focus on checking the matching of MSDS，component inspection reports，purpose descriptions with customs codes. Exclusive stop-loss tips: You can require the agency to sign a port detention loss compensation agreement ，which stipulates that if port detention is caused by the agency's document error，the agency will bear more than 80% of the port detention and storage fees，At the same time，apply for customs pre-classification in advance to lock the compliant code and avoid subsequent disputes.", "upvoteCount": 5, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#acceptedAnswer", "datePublished": "2026-06-21T07:03:17Z", "author": {"@type": "Person","name": "Kevin Lin","url": "https://www.sh-zhongshen.com/en/team/kevin-lin/"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "For the customs valuation link of composite material import, we need to focus on the constituent elements of the transaction price, especially the pricing rationality under cross-border related party transactions. Customs will conduct valuation with reference to the import price of goods of the same category and same specification in the same period. If the enterprise's declared price is 15% lower than the customs reference price, it will trigger a valuation challenge. At this time, it is necessary to provide purchase contracts, payment vouchers, and detailed cost composition (including raw material cost, processing fee, transportation fee, etc.). If it is a related party transaction, it is also necessary to submit transfer pricing contemporaneous documents. The import agency needs to assist the enterprise in sorting out these documents in advance to avoid port detention caused by valuation disputes. At the same time, it can lock the valuation result through an advance ruling application to reduce subsequent customs clearance resistance. In addition, for some composite materials containing special components, it is necessary to apply to the customs for advance ruling on commodity classification in advance to ensure code compliance and avoid wrong tax rate application or customs detention caused by code error.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-2", "datePublished": "2026-06-21T06:51:06Z", "author": {"@type": "Person","name": "Michael Zhang","url": "https://www.sh-zhongshen.com/en/team/michael-zhang/"} } , { "@type": "Answer", "text": "Composite materials, especially carbon fiber, glass fiber and other categories, have extremely high requirements for moisture protection and impact resistance in the transportation environment, so it is necessary to select a logistics service provider with special cargo transportation qualification. The import agency needs to optimize the logistics route according to the characteristics of the goods: If importing from Europe, prioritize the direct route to Shanghai Port to avoid cargo damage caused by multiple loading and unloading during transit; If the cargo volume is small, LCL transportation can be selected, but the freight forwarder should be required to provide an independent moisture-proof packed LCL space. In terms of title control, the method of "telex release bill of lading + named endorsement" should be adopted to avoid title risk during the circulation of the bill of lading; At the same time, pay attention to the agreement on free storage period and detention fee, and apply to the terminal for extending the free storage period in advance. If detention occurs, coordinate with the freight forwarder in time to apply for detention fee reduction, especially for bulk imported goods, the proportion of detention fee reduction can be locked through a long-term cooperation agreement.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-3", "datePublished": "2026-06-21T06:47:19Z", "author": {"@type": "Person","name": "Eric Zhou","url": "https://www.sh-zhongshen.com/en/team/eric-zhou/"} } , { "@type": "Answer", "text": "The tax cost of composite material import mainly includes import tariff, value-added tax (VAT) and subsequent input deduction link. Enterprises can apply for the VAT deferral policy through the import agency, and do not need to pay the full VAT at the import link, but declare and pay it in the VAT declaration period of the next month, which effectively eases the pressure on capital occupation. For composite material imports involving cross-border related party transactions, it is necessary to ensure that transfer pricing conforms to the arm's length principle, and avoid additional tax burden caused by the tax authority adjusting the taxable income. In addition, if the imported composite materials are used to produce export goods, you can apply for export tax refund. The import agency needs to assist the enterprise in sorting out documents to ensure the "consistency of four flows", that is, the consistency of contract flow, capital flow, goods flow and invoice flow, so as to avoid tax refund failure caused by inconsistent documents. At the same time, the tariff rate can be accurately applied according to the customs code of the composite material, and for composite materials that meet the encouraged import catalog, tariff reduction or exemption can be applied.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-4", "datePublished": "2026-06-21T06:46:41Z", "author": {"@type": "Person","name": "Evelyn Li","url": "https://www.sh-zhongshen.com/en/team/evelyn-li/"} } , { "@type": "Answer", "text": "The foreign exchange collection and payment link of composite material import must strictly comply with cross-border payment compliance requirements, especially in cases involving large foreign exchange payments. The import agency needs to assist the enterprise in reviewing the completeness of elements in SWIFT messages, ensuring that the payee information, amount, and transaction remark in the message are consistent with the purchase contract, so as to avoid the failure of normal foreign exchange collection and payment caused by wrong message elements. For enterprises using RMB cross-border payment, payment can be made through the CIPS system, which shortens the payment cycle and reduces the risk of exchange rate fluctuation. In addition, it is necessary to pay attention to the timeliness of foreign exchange verification. After the imported goods are cleared, foreign exchange verification must be completed within the specified period to avoid the decline of the enterprise's foreign exchange receipts and payments directory level caused by untimely verification. For composite material imports involving entrepot trade, it is necessary to ensure the matching of goods flow and capital flow, avoid illegal operations such as "idle rotation", and keep relevant documents of entrepot trade for inspection by the foreign exchange management department.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-5", "datePublished": "2026-06-21T06:37:07Z", "author": {"@type": "Person","name": "Victor Sun","url": "https://www.sh-zhongshen.com/en/team/victor-sun/"} } , { "@type": "Answer", "text": "In the process of composite material import, if letter of credit settlement is adopted, it is necessary to focus on preventing the risk of soft clauses in letter of credit. For example, clauses such as "payment can be made only after the goods are inspected and qualified by the institution designated by the buyer" can easily lead to malicious refusal of payment by the buyer. The import agency needs to assist the enterprise in reviewing the letter of credit clauses, require the deletion of soft clauses, or add a supplementary clause that "the inspection institution must be a third-party institution recognized by both parties". In the title transfer link, it is necessary to ensure that the endorsement of the bill of lading is compliant. If a marine bill of lading is used, an appropriate endorsement method should be selected according to the trade term. For example, under the FOB term, the bill of lading must be endorsed and transferred by the shipper to the consignee. In addition, for imported composite materials involving intellectual property rights, it is necessary to apply for intellectual property protection filing with the customs in advance to avoid goods being seized due to infringement. At the same time, it is necessary to clearly define the scope of force majeure clauses in the purchase contract, for example, the cargo delay caused by port strike, epidemic and other situations, and stipulate the division of responsibilities between the two parties.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-6", "datePublished": "2026-06-21T06:13:14Z", "author": {"@type": "Person","name": "Grace Wang","url": "https://www.sh-zhongshen.com/en/team/grace-wang/"} } , { "@type": "Answer", "text": "In the on-site inspection link of composite material import, the customs will focus on checking whether the composition, specification and packaging of the goods are consistent with the declared documents. If the goods are selected for unpacking inspection, you need to prepare in advance: ensure that the marks on the cargo packaging are consistent with the declared composition and specification, and bring documents such as component inspection report and MSDS for customs inspection. For some composite materials that need to be sent for inspection, such as those containing special chemical components, you need to cooperate with the customs to complete the inspection submission process. The import agency needs to assist the enterprise to follow up the inspection progress and obtain the test report in time to avoid port detention caused by inspection delay. In addition, it is necessary to pay attention to the authenticity identification of the seal. After the goods arrive at the port, check whether the seal number is consistent with the seal number on the bill of lading immediately. If the seal is damaged, take photos and notify the freight forwarder and customs immediately to avoid responsibility disputes caused by cargo damage.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-7", "datePublished": "2026-06-21T06:12:36Z", "author": {"@type": "Person","name": "Cindy Chen","url": "https://www.sh-zhongshen.com/en/team/cindy-chen/"} } , { "@type": "Answer", "text": "For composite materials, especially those containing resin components, those falling into the category of dangerous goods must comply with UN dangerous goods packaging requirements. The import agency needs to assist the enterprise in preparing a compliant MSDS, ensuring that the content such as composition, transportation information and emergency treatment measures in the MSDS are accurate, so as avoid goods being rejected for shipment or detained by customs due to non-compliant MSDS. For fragile composite material products, cushioning packaging materials should be used for reinforced packaging, such as foam pads and air cushion films, to avoid cargo damage caused by impact during transportation. In addition, appropriate packaging should be selected according to the transportation mode of the goods. For example, sea cargo needs moisture-proof packaging to avoid moisture deterioration caused by seawater erosion; air cargo must comply with the packaging requirements of airlines, for example, the size and weight of the packaging must meet the cabin loading standards. At the same time, clear transportation marks should be marked on the packaging, such as fragile, moisture-proof, this side up, etc., to facilitate correct loading and unloading by logistics service providers.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-8", "datePublished": "2026-06-21T06:11:54Z", "author": {"@type": "Person","name": "Linda Gao","url": "https://www.sh-zhongshen.com/en/team/linda-gao/"} } , { "@type": "Answer", "text": "If the imported composite materials are used to produce export goods, the enterprise can apply for export tax refund. The import agency needs to assist the enterprise to ensure the compliance of tax refund documents. First, it is necessary to ensure the "consistency of four flows", that is, the information of purchase contract, import customs declaration, VAT special invoice and payment voucher is consistent, especially the specification, quantity and amount of goods must be completely matched. Second, the export tax refund declaration must be completed within the specified period to avoid tax refund failure caused by overdue declaration. In addition, relevant tax refund documents should be kept, such as import customs declaration, VAT special invoice, export goods customs declaration, sales contract, etc., for correspondence inspection by the tax authority. For cases involving entrusted processing, entrusted processing contracts, processing fee invoices and other documents should be provided to ensure the compliance of the tax refund process. At the same time, the import agency needs to assist the enterprise to conduct pre-declaration verification, check document errors in advance, and avoid rejection of formal declaration.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-9", "datePublished": "2026-06-21T06:04:26Z", "author": {"@type": "Person","name": "Daniel Xu","url": "https://www.sh-zhongshen.com/en/team/daniel-xu/"} } , { "@type": "Answer", "text": "The supply chain planning of composite material import needs to be optimized in combination with the enterprise's production demand. The import agency can assist the enterprise to establish an inventory linkage strategy, adjust the import rhythm according to the production line scheduling, and avoid overstock or stock shortage. In terms of cost calculation, it is necessary to comprehensively consider various costs such as import tariff, VAT, logistics fee and agency fee, establish a cost calculation model, and reduce the comprehensive cost by optimizing trade terms, logistics routes and other methods. For example, converting the FOB term to CIF term allows the import agency to be uniformly responsible for logistics and insurance, reducing the coordination cost of the enterprise. In addition, through establishing a long-term cooperation agreement, the price can be locked with the import agency and logistics service provider to avoid cost increase caused by market fluctuation. At the same time, it is necessary to pay attention to the price trend of composite materials in the international market, predict price fluctuations in advance, arrange import plans reasonably, and reduce the cost risk brought by price fluctuations.", "upvoteCount": 0, "url": "https://www.sh-zhongshen.com/en/qa/focus-high-performance-composite-materials-import-agent-customs-compliance-capability.html#suggestedAnswer-10", "datePublished": "2026-06-21T05:58:31Z", "author": {"@type": "Person","name": "Andy Guo","url": "https://www.sh-zhongshen.com/en/team/andy-guo/"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.sh-zhongshen.com/en/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.sh-zhongshen.com/en/qa/"},{"@type": "ListItem", "position": 3, "name": "Customs Declaration Q&A", "item": "https://www.sh-zhongshen.com/en/qa/cat-customs-declaration/"} ,{"@type": "ListItem", "position": 4, "name": "How capable is a professional import agency focusing on high-performance composite materials in full-process customs compliance control?"} ] } ] ```