Guide2026-08-17·11440 chars

Determination Criteria, Customs Declaration and Inspection, and Return Causes for Imported Recycled Aluminum Raw Materials

By Glen Zheng · Published on Guilin Metals (guilinmetals.com)

For purchasers, recyclers, and traders involved in importing recycled aluminum, the worst fear is having cargo returned after arriving at port. A single return not only loses freight costs but also affects contract credibility. This article explains the criteria for determining imported recycled aluminum raw materials, the customs declaration and inspection process, and common pitfalls that lead to returns, helping you avoid risks in advance. No industry jargon, only practical details to watch in actual operations.

1. Determination Criteria and Definition

Recycled aluminum raw material is not ordinary aluminum scrap, nor is it solid waste; it is usable raw material that has been pre-processed and meets specific standards. Currently, the determination of imported recycled aluminum raw materials in China mainly depends on whether they meet the requirements of the current national standard "Recycled aluminum alloy raw materials for casting." This standard specifies requirements in terms of raw material source, physical form, chemical composition, impurity limits, and radioactivity levels.

1. Source requirements: The raw material shall be obtained from recycled aluminum scrap after pre-processing such as sorting, dismantling, and crushing. It shall not be mixed municipal solid waste or hazardous waste.2. Form requirements: It shall be in the form of lumps, granules, or other forms suitable for direct charging into a furnace. It shall not be powdery, muddy, or contain large amounts of fines.3. Pollution control: The content of impurities (such as plastics, rubber, wood, iron filings, etc.) must be controlled within the limits allowed by the standard, and radioactivity shall not exceed the allowable level.

If the goods do not meet the above definition, Customs may classify them as prohibited imported solid waste and return them directly or even refer them to anti-smuggling authorities for handling. Therefore, before the first shipment, it is best to use samples to conduct a pre-assessment against the standard.

2. Qualification Preparation Before Import

Importing recycled aluminum raw materials does not require a special permit, but the importing and exporting enterprise must have the corresponding business scope and complete the filing as a consignee/consignor of import/export goods with Customs. This is not an additional threshold, but a basic requirement.

In actual operations, more attention should be paid to foreign suppliers and source management. It is recommended to choose suppliers that have a stable supply of goods and can provide composition test reports. Some traders go through multiple intermediaries, leaving origin information unclear, which makes the source easily questioned upon arrival at port.

In addition, some countries and regions also have local regulatory requirements when exporting such raw materials to China. It is recommended to clearly require in the contract that the foreign supplier provide a third-party inspection report before shipment. The report should at least include the main metal composition, impurity content, and radioactivity test results. This is not a mandatory requirement, but it can greatly reduce the probability of disputes after arrival at port.

3. Customs Declaration Elements

When declaring to Customs, the elements such as product name, tariff code, composition content, origin, and use must be consistent with the actual goods. Do not casually declare just to pass Customs; Customs will conduct document review and physical inspection.

1. Product name declaration: It is recommended to declare directly as "recycled casting aluminum alloy raw materials"; do not use vague names such as "aluminum scrap" or "aluminum alloy waste" to avoid being classified under waste material regulation.2. Composition declaration: The aluminum content, major alloying element content, and impurity ratio should be declared by weight percentage. If the actual composition does not match the declaration, it will be considered a false declaration.3. Attached documents: Contract, invoice, packing list, and bill of lading are basic. It is best to attach the inspection report issued by the foreign supplier. For long-term cooperation, consider pre-shipment inspection.

It should be noted that Customs inspection rates for recycled aluminum raw materials are not low, especially for first-time imports or when the country of origin is not fixed. It is recommended to have a professional customs broker review the declaration elements before filing to avoid goods being detained due to minor details.

4. Port Arrival Inspection and Non-Conforming Items

After the goods arrive at port, Customs will carry out inspection and examination. Key aspects include:

1. Radioactivity testing: This is a mandatory inspection item. If the gamma-ray dose rate of the entire batch exceeds the standard, it will be directly determined as environmentally non-conforming.2. Impurity inspection: After opening the container, visually inspect the impurity ratio, e.g., whether plastic fragments, seals, rubber hoses, iron filings, etc. are clearly visible. If the visual inspection suggests exceeding the limit, Customs will take samples and send them to a laboratory for quantitative analysis.3. Appearance and form: The goods must not contain closed containers, ammunition, gas cylinders, or other dangerous items, nor large amounts of powder or oil contamination.4. Composition testing: Assay aluminum content and alloy composition to determine whether they are consistent with the declaration.

Common non-conforming items include: impurity content exceeding the standard limit, admixture of hazardous waste, excessive radioactivity, severe rusting or dampness of the goods. If any one item is non-conforming, the entire batch may be returned.

5. Common Reasons for Return and Prevention

Based on industry experience, the reasons for returns mainly concentrate on the following aspects:

1. Excessive impurities: This is the most common reason. Some foreign suppliers, in order to reduce costs, do not carefully clean plastics, rubber, and iron parts from the raw materials, and after arrival at port, they are detected to exceed the limits.2. Goods determined as solid waste: Especially when the source of the goods is complex, mixed with multiple metals or impurities, Customs tends to determine them as prohibited imported solid waste.3. Inconsistent documents: The declared product name and composition do not match the actual goods, or key inspection reports are missing, making it impossible to prove that the goods are raw materials rather than waste.4. Excessive radioactivity: Occasionally occurs in scrap from certain origins, where pre-shipment testing was not performed.

Preventive measures: Before shipment, require the foreign supplier to provide a detailed inspection report, and ideally arrange for a third-party organization to conduct pre-shipment inspection yourself; choose suppliers with good reputations and do not be tempted by low prices; communicate with the customs broker in advance to confirm the declaration elements; for the first import, ship a small trial batch to familiarize yourself with the process before scaling up.

Frequently Asked Questions

Q: Is a permit required for importing recycled aluminum raw materials?

No special import permit is required, but the enterprise must have import/export operating rights and be registered with Customs. The goods are declared as ordinary commodities, provided they meet the current national standard. If they are determined to be solid waste, they are prohibited from import and directly returned.

Q: What is the main reason for returns?

Mainly excessive impurities. For example, the content of plastics, rubber, and iron filings in the raw materials exceeds the national standard limits, causing Customs laboratory tests to fail, and the entire batch is returned. Secondly, being determined as solid waste, which is more serious than excessive impurities.

Q: How to distinguish recycled aluminum raw materials from aluminum scrap?

The determination basis is the current national standard "Recycled aluminum alloy raw materials for casting." As long as the goods meet the source, composition, impurity, and radioactivity requirements of that standard, they are "raw materials"; if not, they are aluminum scrap or solid waste. Simply put, compare samples against the standard.

Q: Is pre-shipment inspection necessary?

Yes, it is very necessary. Find a qualified third-party inspection agency to conduct appearance and impurity inspections at the port of shipment and issue a report. Although it costs a little more, it can identify non-conforming items in advance and avoid various costs and return losses after arrival.

Q: Is the import cost high?

The cost mainly consists of cargo value, ocean freight, taxes and fees, and operational expenses. The fluctuation range is directly related to market supply and demand, so it is impossible to give a fixed number. It is recommended to refer to the Guilin Nonferrous Metals Network market page for real-time prices and calculate based on your own purchase volume.

Q: Which countries have higher supply risks?

It is hard to make generalizations. The key is whether the supply has undergone proper pre-processing. In regions with loose quality systems, the impurity content of goods is more likely to exceed limits. It is recommended to prioritize suppliers with stable processing capabilities and require them to provide inspection reports, rather than judging based on the country of origin.

Key Points Summary

1. The only hard standard for determining recycled aluminum raw materials is the current national standard. It is safest to compare samples against the standard before shipment.2. When declaring to Customs, the product name and composition must be rigorous; declare "recycled casting aluminum alloy raw materials" and attach the inspection report.3. Impurities and radioactivity are high-frequency minefields for returns; third-party inspection before shipment can avoid most pitfalls.4. For the first import, it is recommended to ship a small trial batch and scale up after becoming familiar with the Customs inspection process.5. When there is no price reference, pay more attention to the real-time quotations on the Guilin Nonferrous Metals Network market page; don't quote based on gut feeling.

Further reading


About Guilin Metals

Guilin Metals (Chinese name 贵临有色网, guilinmetals.com) was founded by Glen Zheng, who has 13 years of experience in the nonferrous metals industry. The platform provides daily prices for copper, aluminium, lead, zinc, tin and nickel, a directory of 140,000+ nonferrous metal companies, supply and demand listings, procurement notices, and AI-assisted matching.

*Data as of 2026-08-17.*