What Are the Differences Between TDS Report and COA Certificate?

Core Differences Between TDS and COA

JJR LAB recently received assistance from a foreign trade enterprise. The enterprise exported a batch of food-grade contact plastic tableware to the United States, and the goods were directly detained by the customs upon arrival. After verification, the problem lay in the document preparation process: the enterprise only provided the TDS (Technical Data Sheet) without issuing the corresponding COA (Certificate of Analysis) for each batch as requiRED, failing to prove that the product ingredients met FDA standards. As a resULt, customs clearance was delayed for 15 days, incurring a total of more than 20,000 yuan in port detention fees and storage fees, and also damaging the cooperative trust with overseas customers.

This case is not isolated. In the 12 years since JJR LAB was established, we have received relevant inquiries from foreign trade sellers and manufacturers every day. Most problems arise from confusing the purposes of TDS reports and COA certificates, which further leads to blocked customs clearance and order losses. Based on practical experience, this article analyzes the core differences between the two to help enterprises avoid such risks.

I. Definitions

Although both TDS reports and COA certificates are documents related to testing and certification, their core positioning and purposes are completely different, and they must not be substituted for each other. Many enterprises mistakenly believe that "the two types of documents are universal and only one needs to be submitted". It is this cognitive misunderstanding that has caused many unnecessary losses.

COA (Certificate of Analysis): Its core function is to conduct professional testing and analysis on product ingredients and quality, and issue legally effective test results. It is a tangible "quality certificate" for products. Its core value lies in verifying quality, clarifying the content of various ingredients of the product, and whether it meets the corresponding standard requirements. For categories such as food, cosmetics, medical devices, and cheMICal products, the COA is an essential document for FDA declaration and overseas customs clearance, and is indispensable.

TDS (Technical Data Sheet): Its core function is to intuitively present the physical and chemical indicators and technical parameters of the product, helping users quickly grasp basic information such as product characteristics, usage methods, and application scope. Generally speaking, the core value of TDS is to "display parameters". It has no legal effect of testing and certification, only serves as a product technical description document, and cannot be used as a basis for quality verification.

II. Purposes

Based on industry practical experience, the actual application scenarios of the two types of documents are significantly different. The specific breakdown is as follows to facilitate enterprises to accurately distinguish and use them in a standardized manner.

(I) COA Certificate

The COA certificate is mainly applicable to three scenarios: overseas customs clearance, regulatory review, and customer quality verification:

First, overseas customs clearance. For exports to regions with strict supervision such as Europe, the United States, Japan, and South Korea, the COA is a mandatory document. The customs verifies whether the product ingredients meet the standards through it, and customs clearance cannot proceed without this document.

Second, FDA declaration. For products entering the US market, the COA is a core declaration document, and the declaration cannot be approved without it.

Third, customer cooperation. Overseas buyers often take the COA as the basis for qualified product quality. Preparing it in advance can improve customer trust.

Key Reminder: The COA certificate is unique to each batch and must be issued one by one according to product batches. Sharing one certificate among multiple batches is strictly prohibited. The enterprise mentioned earlier ignored this point, resulting in blocked customs clearance. In terms of certification efficiency, on the premise of complete testing materials and qualified products, the certificate can be issued in about 3 working days. Enterprises are advised to plan in advance to avoid delaying customs clearance.

(II) TDS Report

The TDS report is mainly applicable to product promotion, production reference, and auxiliary customs clearance scenarios:

First, product promotion. Display physical and chemical indicators and technical parameters to customers to help them quickly judge product adaptability.

Second, production process. Serve as a technical reference to guide standardized production and ensure product consistency.

Third, auxiliary customs clearance. It can be submitted as a supplementary document to the COA certificate to help the customs fully understand the product, but it must not be used alone as a basis for customs clearance.

III. Summary of Differences

Combining definitions and purposes, the core differences between the two are summarized as follows. Enterprises are recommended to keep them for reference to avoid confusion and misuse:

1. Different legal effects:

COA is a legally effective testing and certification document that can be used as the core basis for quality verification;

TDS is only a technical description document with no legal effect and cannot be used for quality verification.

2. Different core contents:

COA focuses on product ingredients, test results, and compliance judgments, serving as a "quality certificate";

TDS focuses on physical and chemical indicators, technical parameters, and usage instructions, serving as a "parameter manual".

3. Different issuance requirements:

COA must be issued by batch, with an exclusive certificate for each batch and professional testing required;

TDS can be issued by model, shared by the same model without batch-by-batch testing, and is more flexible.

4. Different applicable scenarios:

COA is used for FDA declaration, overseas customs clearance, and quality verification, which is a "compliance necessity";

TDS is used for product introduction, technical reference, and auxiliary customs clearance, which is an "auxiliary material".

IV. Compliance Guidelines

Based on practical experience, three practical suggestions are provided for foreign trade sellers and manufacturers to build a solid export compliance defense line:

1. Understand requirements in advance and prepare corresponding documents:

Before signing an export order, clarify the regulatory requirements of the destination country. For scenarios involving FDA declaration and strict customs clearance, start the testing process in advance, issue COA certificates by batch, and avoid last-minute rush.

2. Strictly distinguish purposes and prohibit confusion and substitution:

Keep in mind that "COA is for quality verification and TDS is for parameter display". It is strictly prohibited to use TDS reports instead of COA certificates for customs clearance and FDA declaration to avoid losses outweighing gains.

3. Standardize document management and ensure information consistency:

Properly keep COA certificates of each batch for verification by customs and customers; ensure that the parameters in the TDS report are consistent with the actual product conditions to avoid risks of complaints and order losses.

V. Full Text Summary

TDS reports and COA certificates have completely different positioning and purposes and cannot be substituted for each other.

COA is a legally effective quality testing document, essential for FDA declaration and overseas customs clearance, and must be issued by batch.

TDS is a technical information description document used for parameter display and auxiliary promotion, and can be shared by model.

For foreign trade enterprises, accurately distinguishing the differences between the two and using relevant documents in a standardized manner is the key to avoiding customs clearance risks, ensuring compliant exports, and maintaining customer trust.

With years of industry experience, JJR LAB has witnessed many enterprises suffer losses due to document confusion. We hope this article can help you clarify your cognition and avoid misunderstandings, facilitating smooth export procedures. If you have any related questions, please feel free to consult us at any time.