Food contact material product quality standard traceability system and method

Abstract

The invention provides a food contact material product quality standard traceability system and method. The food contact material product quality standard traceability system comprises a multi-dimensional data acquisition module which is used for acquiring raw material traceability data, production process carbon footprint data, product quality detection data, circular economy attribute data and tax associated data; the block chain evidence storage module is used for carrying out uplink evidence storage on the key data acquired by the multi-dimensional data acquisition module and generating a product digital fingerprint which cannot be tampered; the green tax intelligent association engine is used for matching green tax preferential policies of a target market based on the circular economy attribute data; a dynamic compliance early warning module, a circular economy contribution value calculation module and a traceability information service platform. The food contact material product quality standard traceability system and method provided by the invention have the advantage of being capable of realizing credible acquisition, evidence storage, analysis and application of full-life-cycle data of the product.

Description

Technical Field

[0001] This invention relates to the field of food technology, and in particular to a traceability system and method for quality standards of food contact materials. Background Technology

[0002] Food contact materials, such as tableware, packaging containers, and food processing equipment components, are increasingly attracting global attention from consumers, regulatory agencies, and international trade rules regarding their quality, safety, and environmental attributes. With the advancement of "dual carbon" goals and the development of a circular economy, the market has set clear quantitative requirements for the green and low-carbon attributes of products, as well as the content of recyclable materials. Meanwhile, regulations and standards concerning food contact materials in various countries (such as China's GB, the EU 10 / 2011, and US FDA regulations) are constantly being updated, and more and more countries and regions are introducing green tariff preferences or carbon border adjustment mechanisms based on product environmental performance.

[0003] However, in existing technologies, the source of raw materials, carbon emissions during production, quality inspection reports, and claims of recycled components are recorded by different systems, making it difficult to trace the entire chain reliably. There is a lack of a unified quantitative evaluation model for the circular economy contribution and carbon reduction benefits of products, making it difficult to form a recognized and comparable green value indicator. Enterprises need to invest a lot of manpower to keep up with the updates of the complex and ever-changing global regulations and standards, and manually check whether products comply with the rules of origin of various free trade agreements and green tariff requirements, which is slow to respond, prone to errors, and costly.

[0004] Therefore, it is necessary to provide a new traceability system and method for the quality standards of food contact materials to solve the above-mentioned technical problems. Summary of the Invention

[0005] The technical problem solved by this invention is to provide a traceability system and method for quality standards of food contact materials that enables reliable collection, storage, analysis and application of data throughout the entire product lifecycle.

[0006] To address the aforementioned technical problems, the food contact material product quality standard traceability system provided by this invention includes: a multi-dimensional data acquisition module, used to collect raw material traceability data, production process carbon footprint data, product quality testing data, circular economy attribute data, and tariff-related data;

[0007] The blockchain evidence storage module is used to store key data collected by the multi-dimensional data acquisition module on the blockchain and generate an unalterable digital fingerprint of the product.

[0008] The green tariff intelligent correlation engine matches green tariff preferential policies of target markets based on the circular economy attribute data.

[0009] The dynamic compliance early warning module is used to monitor updates to global food contact material standards in real time and to conduct compliance risk assessments on the company's products in production.

[0010] The circular economy contribution value calculation module is used to calculate the circular economy contribution value of a product based on the proportion of recycled materials, recyclability design score, carbon footprint intensity, and biodegradability index.

[0011] The traceability information service platform is used to provide differentiated data query and verification services for manufacturers, regulatory agencies, and end consumers.

[0012] Preferably, the multidimensional data acquisition module includes:

[0013] The raw material traceability unit is used to record the source, proportion, and supplier environmental and social governance rating information of bio-based or recycled materials.

[0014] The carbon footprint tracking unit collects energy consumption data, transportation distance, and packaging data at each stage of production through IoT devices;

[0015] The quality data unit interfaces with the laboratory information management system to obtain migration test, physical performance, and chemical safety test results.

[0016] The circular economy unit records the proportion of recycled materials in the product, the recyclability design score, and the expected degradation cycle.

[0017] The tariff-related unit records the product's customs code, country of origin information, and environmental certification qualifications.

[0018] Preferably, the green tariff intelligent linkage engine includes:

[0019] A tariff rules knowledge base that stores tariff preferences, free trade agreement provisions, and rules of origin for environmentally friendly products from various countries.

[0020] The intelligent matching module matches applicable tariff preference schemes based on the product's environmental attribute data and destination country information;

[0021] The documentation generation module allows you to generate green declarations, certificates of conformity, and certificates of origin that meet the requirements of the importing country with a single click.

[0022] Preferably, the circular economy contribution value calculation module uses the following algorithm to calculate the circular economy contribution value of the product:

[0023]

[0024] Where R represents the proportion of recycled materials in the product, E represents the product's recyclability design score, C represents the product's carbon footprint intensity per unit, and D represents the product's biodegradability index. , , , This is an adjustment factor determined based on the industry type.

[0025] Preferred options also include:

[0026] The environmental declaration verification module is used to verify the authenticity of a product's environmental declaration without disclosing the company's trade secrets, using zero-knowledge proof technology.

[0027] The carbon tariff response module provides supply chain optimization solutions that minimize carbon costs, based on product carbon footprint data and target market carbon tariff policies.

[0028] This invention also provides a method for tracing the quality standards of food contact materials, comprising the following steps:

[0029] S1: When raw materials are received into the warehouse, information on the source of the raw materials, their environmental properties, and the qualifications of the suppliers is collected.

[0030] S2: Real-time collection of energy consumption, process parameters and quality control data at each stage of the production process;

[0031] S3: Conduct quality inspections on finished products and obtain inspection reports that meet national and international standards;

[0032] S4: Calculate the carbon footprint and circular economy contribution of a product throughout its entire life cycle;

[0033] S5: Store key data on the blockchain to generate a unique product traceability identifier;

[0034] S6: Based on the product's environmental attributes, match the green tariff preferential policies of the target market;

[0035] S7: Provide differentiated traceability information query and verification services for different users.

[0036] Preferably, in step S4, the calculation of the full life cycle carbon footprint includes: the carbon footprint of the raw material acquisition stage, based on the environmental product declaration or life cycle assessment database provided by the supplier; the carbon footprint of the manufacturing stage, based on real-time collected energy consumption data; the carbon footprint of the transportation and distribution stage, calculated based on transportation distance, transportation vehicle and load rate; and the carbon footprint of the waste disposal stage, based on the product's recyclability and actual recycling rate estimation.

[0037] Preferably, in step S6, the matching of green tariff preferential policies includes: analyzing whether the product meets the environmental product certification standards of the target market; identifying the applicable free trade agreement rules of origin for the product; comparing the differences in tariff rates under different tariff categories and selecting the optimal declaration scheme; and generating a complete set of supporting document templates that meet the requirements of the importing country.

[0038] Preferably, it also includes: real-time monitoring of updates to food contact material regulations and standards in major global markets; assessing the impact on in-production and inventory products when relevant standard changes are detected; sending tiered early warning information to enterprises based on the degree of impact; and providing technical improvement suggestions and transitional plans to comply with the new standards.

[0039] Preferably, in step S7, the differentiated traceability information query service includes: providing supply chain transparency management, compliance risk warning and green tariff optimization services for manufacturing enterprises; providing environmental declaration verification, quality and safety traceability and risk assessment services for regulatory agencies; providing product environmental attribute query, authenticity verification and recycling guidance services for end consumers; and providing automatic generation of conformity documents, tariff cost calculation and market demand analysis services for traders.

[0040] Compared with related technologies, the food contact material product quality standard traceability system and method provided by the present invention have the following beneficial effects:

[0041] This invention provides a traceability system and method for food contact materials, enabling deep integration and reliable storage of multi-dimensional data through a five-dimensional traceability model. It integrates previously fragmented information on raw materials, environment, quality, recycling, and trade onto a unified platform, and utilizes blockchain technology to ensure the immutability of core data. This establishes a credible green digital identity for products at the source, effectively solving the problems of information silos and data credibility. Furthermore, the system uses a circular economy contribution value quantification evaluation model to scientifically integrate key indicators such as the proportion of recycled materials, recyclable design, carbon footprint, and biodegradability into a comprehensive and comparable score. The circular economy value of products can be accurately quantified and clearly presented, providing a key tool for market evaluation and green trading; it can intelligently link environmental performance with trade preferences, automatically matching green tariffs or free trade agreement preferential policies of target markets based on the quantified environmental attributes of products, thereby directly transforming corporate environmental investment into economic benefits and stimulating the intrinsic motivation for continuous green innovation; through the construction of a proactive global compliance risk control system, it can monitor regulatory changes in real time and automatically assess their specific impact on corporate products, achieving a fundamental shift from passive response to proactive early warning and precise prevention and control, and significantly reducing corporate compliance risks and operating costs. Attached Figure Description

[0042] Figure 1 A schematic diagram of the traceability system for quality standards of food contact materials provided by this invention;

[0043] Figure 2 A schematic diagram of the multi-dimensional data acquisition module of the traceability system for quality standards of food contact materials provided by this invention;

[0044] Figure 3 A schematic diagram of the green tariff intelligent correlation engine for the traceability system of food contact material product quality standards provided by this invention;

[0045] Figure 4 A flowchart of the traceability method for quality standards of food contact materials provided by the present invention. Detailed Implementation

[0046] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0047] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A schematic diagram of the traceability system for quality standards of food contact materials provided by this invention; Figure 2 A schematic diagram of the multi-dimensional data acquisition module of the traceability system for quality standards of food contact materials provided by this invention; Figure 3 A schematic diagram of the green tariff intelligent correlation engine for the traceability system of food contact material product quality standards provided by this invention; Figure 4 The flowchart illustrates the traceability method for food contact material product quality standards provided by this invention. The food contact material product quality standard traceability system includes: a multi-dimensional data acquisition module for collecting raw material traceability data, production process carbon footprint data, product quality testing data, circular economy attribute data, and tariff-related data;

[0048] The blockchain evidence storage module is used to store key data collected by the multi-dimensional data acquisition module on the blockchain and generate an unalterable digital fingerprint of the product.

[0049] The green tariff intelligent correlation engine matches green tariff preferential policies of target markets based on the circular economy attribute data.

[0050] The dynamic compliance early warning module is used to monitor updates to global food contact material standards in real time and to conduct compliance risk assessments on the company's products in production.

[0051] The circular economy contribution value calculation module is used to calculate the circular economy contribution value of a product based on the proportion of recycled materials, recyclability design score, carbon footprint intensity, and biodegradability index.

[0052] The traceability information service platform is used to provide differentiated data query and verification services for manufacturers, regulatory agencies, and end consumers.

[0053] The aforementioned traceability system for food contact materials constitutes a complete five-dimensional traceability model. It integrates and interoperates five key dimensions—raw material source, environmental impact, quality standards, circular characteristics, and trade compliance—within a single technical framework. The blockchain evidence storage module adopts a consortium blockchain architecture, including at least regulatory agency nodes, industry association nodes, and core enterprise nodes, ensuring data immutability and multi-party consensus. The product digital fingerprint is a unique identifier generated based on product batch information, timestamps, and key characteristic parameters, which can be encoded as a QR code, RFID, or NFC chip carrier. The differentiated query service provides information display with different levels of detail and data dimensions based on user identity and permissions.

[0054] The multidimensional data acquisition module includes:

[0055] The raw material traceability unit is used to record the source, proportion, and supplier environmental and social governance rating information of bio-based or recycled materials.

[0056] The carbon footprint tracking unit collects energy consumption data, transportation distance, and packaging data at each stage of production through IoT devices;

[0057] The quality data unit interfaces with the laboratory information management system to obtain migration test, physical performance, and chemical safety test results.

[0058] The circular economy unit records the proportion of recycled materials in the product, the recyclability design score, and the expected degradation cycle.

[0059] The tariff-related unit records the product's customs code, country of origin information, and environmental certification qualifications.

[0060] It should be noted that: the bio-based material sources recorded in the raw material traceability unit include plant species, planting location, harvest time, and agricultural production data; the sources of recycled materials include recycling channels, pre-recycling uses, recycling processes, and historical usage counts; the Environmental Social Governance (ESG) rating information comes from certified third-party assessment agencies; the IoT devices integrated into the carbon footprint tracking unit include at least smart meters, gas flow meters, steam flow meters, and GPS positioning devices, with a data collection frequency of no less than once per hour; the recyclability design score is assessed based on internationally accepted recyclability design guidelines, including indicators such as material uniformity, ease of separation, and label clarity.

[0061] The green tariff intelligent linkage engine includes:

[0062] A tariff rules knowledge base that stores tariff preferences, free trade agreement provisions, and rules of origin for environmentally friendly products from various countries.

[0063] The intelligent matching module matches applicable tariff preference schemes based on the product's environmental attribute data and destination country information;

[0064] The documentation generation module allows you to generate green declarations, certificates of conformity, and certificates of origin that meet the requirements of the importing country with a single click.

[0065] The intelligent matching module uses a combination of rule engine and machine learning. It takes as input product material composition, environmental certification, carbon footprint value and destination country, and outputs the optimal HS code classification suggestion, applicable tariff rate and list of required supporting documents.

[0066] The circular economy contribution value calculation module uses the following algorithm to calculate the circular economy contribution value of the product:

[0067]

[0068] Where R is the proportion of recycled materials in the product (range 0-1), E is the recyclability design score of the product (range 0-10), C is the carbon footprint intensity per unit of the product (kgCO2e / kg), and D is the biodegradability index of the product (range 0-10). , , , This is an adjustment factor determined based on the industry type.

[0069] The circular economy contribution value is a dimensionless comprehensive evaluation index, ranging from 0 to 100. A higher value indicates better circular economy performance. The biodegradability index D is determined based on the product's mass loss rate and time under standard composting conditions (e.g., ISO 14855). Adjustment coefficient. , , , The coefficients for food contact materials are determined using expert scoring and analytic hierarchy process (AHP) based on the specific type of material (e.g., plastic, paper, metal, glass, silicone) to ensure comparability between different product categories. For example, for plastic food contact materials, a recommended set of coefficients is as follows: , , , .

[0070] Also includes:

[0071] The environmental declaration verification module is used to verify the authenticity of a product's environmental declaration without disclosing the company's trade secrets, using zero-knowledge proof technology.

[0072] The carbon tariff response module provides supply chain optimization solutions that minimize carbon costs, based on product carbon footprint data and target market carbon tariff policies.

[0073] The environmental declaration verification module enables zero-knowledge proofs, allowing companies to demonstrate to the verifier that their products meet specific environmental standards without disclosing specific material formulas, supplier information, or production process details. The carbon tariff response module incorporates carbon pricing models for major economies, simulating expected carbon costs under different supply chain configurations and recommending cost-optimal supply chain adjustment solutions that meet the requirements of substantial transformation.

[0074] This invention also provides a method for tracing the quality standards of food contact materials, comprising the following steps:

[0075] S1: When raw materials are received into the warehouse, information on the source of the raw materials, their environmental properties, and the qualifications of the suppliers is collected.

[0076] S2: Real-time collection of energy consumption, process parameters and quality control data at each stage of the production process;

[0077] S3: Conduct quality inspections on finished products and obtain inspection reports that meet national and international standards;

[0078] S4: Calculate the carbon footprint and circular economy contribution of a product throughout its entire life cycle;

[0079] S5: Store key data on the blockchain to generate a unique product traceability identifier;

[0080] S6: Based on the product's environmental attributes, match the green tariff preferential policies of the target market;

[0081] S7: Provide differentiated traceability information query and verification services for different users.

[0082] This invention provides a method for tracing the quality standards of food contact materials, which is an end-to-end process from raw materials to finished products, then to distribution and final verification. In S1, the environmental attributes of raw materials need to be verified by obtaining a verifiable statement from the supplier via blockchain. In S3, the test report needs to be issued by a laboratory with CNAS or equivalent internationally recognized qualifications. In S5, the key data includes at least: raw material batch hash, key process parameter hash, final test report hash, and calculated CECV value. These hash values ​​together constitute the input of the product's digital fingerprint. In S7, after consumers scan the product label, the system displays a simplified traceability report. Regulatory agencies can obtain all detailed data and verification logs through a dedicated interface.

[0083] In S4, the calculation of the full life cycle carbon footprint includes: the carbon footprint of the raw material acquisition stage, based on the environmental product declaration or life cycle assessment database provided by the supplier; the carbon footprint of the manufacturing stage, based on real-time collected energy consumption data; the carbon footprint of the transportation and distribution stage, calculated based on transportation distance, transportation vehicle and load rate; and the carbon footprint of the waste disposal stage, based on the product's recyclability and actual recycling rate estimate.

[0084] The calculation of the entire lifecycle carbon footprint follows the ISO 14067 standard. The system has pre-built-in or can interface with mainstream lifecycle assessment databases, such as Ecoinvent, CLCD, or supplier-specific environmental product declarations. The carbon footprint calculation for the transportation and distribution phase uses real-time or predicted logistics data, combined with emission factors for different modes of transport (sea, air, and land). The waste disposal phase uses a cradle-to-gate recycling boundary, considering the carbon reduction benefits of recycling and regeneration for recyclable materials, and making appropriate deductions. The system can automatically generate carbon footprint reports that comply with PAS 2050 or product environmental footprint requirements.

[0085] In S6, the matching of green tariff preferential policies includes: analyzing whether the product meets the environmental product certification standards of the target market; identifying the applicable free trade agreement rules of origin for the product; comparing the differences in tariff rates under different tariff categories and selecting the optimal declaration scheme; and generating a complete set of supporting document templates that meet the requirements of the importing country.

[0086] This also includes: real-time monitoring of updates to food contact material regulations and standards in major global markets; assessing the impact on in-production and inventory products when relevant standard changes are detected; sending tiered early warning information to companies based on the degree of impact; and providing technical improvement suggestions and transitional plans to comply with the new standards.

[0087] In S7, the differentiated traceability information query service includes: providing supply chain transparency management, compliance risk warning and green tariff optimization services for manufacturing enterprises; providing environmental declaration verification, quality and safety traceability and risk assessment services for regulatory agencies; providing product environmental attribute query, authenticity verification and recycling guidance services for end consumers; and providing automatic generation of conformity documents, tariff cost calculation and market demand analysis services for traders.

[0088] Compared with related technologies, the food contact material product quality standard traceability system and method provided by the present invention have the following beneficial effects:

[0089] This invention provides a traceability system and method for quality standards of food contact materials. It integrates previously fragmented information on raw materials, environment, quality, recycling, and trade onto a unified platform, and utilizes blockchain technology to ensure the immutability of core data. This establishes a trustworthy green digital identity for products at the source, effectively solving the problems of information silos and data credibility. Furthermore, the system uses a quantitative evaluation model for circular economy contribution value to scientifically integrate key indicators such as the proportion of recycled materials, recyclable design, carbon footprint, and biodegradability into an intuitive and comparable comprehensive score. This allows for accurate quantification and clear presentation of the circular economy value of products, providing a crucial tool for market evaluation and green trading. It also establishes an intelligent link between environmental performance and trade preferences, automatically matching green tariffs or free trade agreement preferential policies in target markets based on the product's quantified environmental attributes. This directly transforms corporate environmental investment into economic benefits, stimulating the intrinsic motivation for continuous green innovation. Finally, the proactive global compliance risk control system monitors regulatory changes in real time and automatically assesses their specific impact on corporate products, achieving a fundamental shift from passive response to proactive early warning and precise prevention, significantly reducing corporate compliance risks and operating costs.

[0090] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A traceability system for quality standards of food contact materials, characterized in that, include: The multi-dimensional data acquisition module is used to collect raw material traceability data, production process carbon footprint data, product quality testing data, circular economy attribute data, and tariff-related data. The blockchain evidence storage module is used to store key data collected by the multi-dimensional data acquisition module on the blockchain and generate an unalterable digital fingerprint of the product. The green tariff intelligent correlation engine matches green tariff preferential policies of target markets based on the circular economy attribute data. The dynamic compliance early warning module is used to monitor updates to global food contact material standards in real time and to conduct compliance risk assessments on the company's products in production. The circular economy contribution value calculation module is used to calculate the circular economy contribution value of a product based on the proportion of recycled materials, recyclability design score, carbon footprint intensity, and biodegradability index. The traceability information service platform is used to provide differentiated data query and verification services for manufacturers, regulatory agencies, and end consumers.

2. The food contact material product quality standard traceability system according to claim 1, characterized in that, The multidimensional data acquisition module includes: The raw material traceability unit is used to record the source, proportion, and supplier environmental and social governance rating information of bio-based or recycled materials. The carbon footprint tracking unit collects energy consumption data, transportation distance, and packaging data at each stage of production through IoT devices; The quality data unit interfaces with the laboratory information management system to obtain migration test, physical performance, and chemical safety test results. The circular economy unit records the proportion of recycled materials in the product, the recyclability design score, and the expected degradation cycle. The tariff-related unit records the product's customs code, country of origin information, and environmental certification qualifications.

3. The food contact material product quality standard traceability system according to claim 1, characterized in that, The green tariff intelligent linkage engine includes: A tariff rules knowledge base that stores tariff preferences, free trade agreement provisions, and rules of origin for environmentally friendly products from various countries. The intelligent matching module matches applicable tariff preference schemes based on the product's environmental attribute data and destination country information; The documentation generation module allows you to generate green declarations, certificates of conformity, and certificates of origin that meet the requirements of the importing country with a single click.

4. The food contact material product quality standard traceability system according to claim 2, characterized in that, The circular economy contribution value calculation module uses the following algorithm to calculate the circular economy contribution value of the product: ； Where R represents the proportion of recycled materials in the product, E represents the product's recyclability design score, C represents the product's carbon footprint intensity per unit, and D represents the product's biodegradability index. , , , This is an adjustment factor determined based on the industry type.

5. The food contact material product quality standard traceability system according to claim 1, characterized in that, Also includes: The environmental declaration verification module is used to verify the authenticity of a product's environmental declaration without disclosing the company's trade secrets, using zero-knowledge proof technology. The carbon tariff response module provides supply chain optimization solutions that minimize carbon costs, based on product carbon footprint data and target market carbon tariff policies.

6. A method for tracing the quality standards of food contact materials using the food contact material product quality standard traceability system as described in any one of claims 1-5, characterized in that, Includes the following steps: S1: When raw materials are received into the warehouse, information on the source of the raw materials, their environmental properties, and the qualifications of the suppliers is collected. S2: Real-time collection of energy consumption, process parameters and quality control data at each stage of the production process; S3: Conduct quality inspections on finished products and obtain inspection reports that meet national and international standards; S4: Calculate the carbon footprint and circular economy contribution of a product throughout its entire life cycle; S5: Store key data on the blockchain to generate a unique product traceability identifier; S6: Based on the product's environmental attributes, match the green tariff preferential policies of the target market; S7: Provide differentiated traceability information query and verification services for different users.

7. The method for tracing the quality standards of food contact materials according to claim 6, characterized in that, In S4, the calculation of the full life cycle carbon footprint includes: the carbon footprint of the raw material acquisition stage, based on the environmental product declaration or life cycle assessment database provided by the supplier; the carbon footprint of the manufacturing stage, based on real-time collected energy consumption data; the carbon footprint of the transportation and distribution stage, calculated based on transportation distance, transportation vehicle and load rate; and the carbon footprint of the waste disposal stage, based on the product's recyclability and actual recycling rate estimate.

8. The method for tracing the quality standards of food contact materials according to claim 6, characterized in that, In S6, the matching of green tariff preferential policies includes: analyzing whether the product meets the environmental product certification standards of the target market; identifying the applicable free trade agreement rules of origin for the product; comparing the differences in tariff rates under different tariff categories and selecting the optimal declaration scheme; and generating a complete set of supporting document templates that meet the requirements of the importing country.

9. The method for tracing the quality standards of food contact materials according to claim 6, characterized in that, Also includes: Real-time monitoring of updates to food contact material regulations and standards in major global markets; assessment of the impact on in-production and inventory products when relevant standard changes are detected; sending tiered early warning information to enterprises based on the degree of impact; and providing technical improvement suggestions and transitional plans to comply with the new standards.

10. The method for tracing the quality standards of food contact materials according to claim 6, characterized in that, In S7, the differentiated traceability information query service includes: providing supply chain transparency management, compliance risk warning and green tariff optimization services for manufacturing enterprises; providing environmental declaration verification, quality and safety traceability and risk assessment services for regulatory agencies; providing product environmental attribute query, authenticity verification and recycling guidance services for end consumers; and providing automatic generation of conformity documents, tariff cost calculation and market demand analysis services for traders.

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