What data for this category looks like
Industrial metals financial report data comes from domestic and overseas futures exchange announcements, public disclosure documents from mining and smelting enterprises, and monthly statistical briefings from industry associations. Updates follow a quarterly and annual regular cadence. Some industry data is updated monthly. Documents are mostly in PDF format. Some have embedded structured Excel attachments. Content includes cross-page nested tables, detailed cost breakdowns, production volume and inventory, and more. Fields include monthly production volume, ending inventory, spot average price, and import volume. Units are mostly tons and yuan per ton.
What constraints do these characteristics impose on document parsing and chunking
Industrial metals financial reports have a high proportion of cross-page nested tables. Standard chunking logic can easily split table-related content, leading to broken structured data. Documents with mixed data from multiple product categories require precise binding of fields to corresponding industrial metal categories to avoid field misalignment. When parsing frequently updated monthly documents in bulk, limit the parsing duration per document to avoid blocking the overall queue. Some documents include embedded structured Excel attachments. Additional adaptation for non-PDF parsing processes is required. Otherwise, structured data content will be lost.
How to set the configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
parse_pdf_table_mode | "complex" | Industrial metals financial reports have many cross-page nested tables. The complex mode preserves table structure and field associations |
chunk_size | 800–1200 characters | Industrial metals financial reports have dense fields. Too long chunks will lose field associations. Too short chunks will damage the logical integrity of data |
chunk_overlap | 100–150 characters | The leading and trailing content of cross-page tables needs overlapping to avoid broken associations during splitting |
PARSE_FILE_TIMEOUT_SECONDS | 120 seconds | Industrial metals financial report PDFs often contain multi-page complex tables. Sufficient time is required for complete parsing |
enable_excel_attach_parse | true | Some industrial metals financial reports come with structured Excel attachments for production volume and inventory. Direct extraction of structured data is required |
ocr_dpi | 300 DPI | Scanned industrial metals financial report PDFs require high-resolution OCR to ensure accuracy of text and table recognition |
The parameter values provided on this page are common recommendations to use as a starting point for configuration. Actual values are affected by material form, data volume and business rules. Specific issues require individual analysis. It is recommended to test on your own samples before finalizing settings.
Three common mistakes
- Symptom: Tables in uploaded industrial metals financial report PDFs are split with misaligned rows and columns, or cross-page tables are split into unrelated segments. Cause:
parse_pdf_table_modeis not configured as"complex". The default simple mode cannot recognize cross-page nested table structures. - Symptom: Calling the API to upload an industrial metals financial report PDF returns a
413 Request Entity Too Largeerror, or the parsing task fails. Cause: TheUPLOAD_FILE_MAX_SIZEconfiguration item is not adjusted. The file size of individual industrial metals financial reports often exceeds the default limit. - Symptom: Parsed chunked content contains unredacted sensitive enterprise data, or the parsing service log shows external network request records. Cause: Local parsing mode is not enabled. The default cloud parsing service carries a risk of data leakage.
How to confirm the configuration is correct
- For FastGPT 4.8.20-fix2, upload an industrial metals financial report PDF containing cross-page tables. Check the parsed chunked content to confirm that the row and column associations of the table are not split and broken.
- Call the file upload interface, upload a test file with a volume not less than the preset threshold. Confirm that the interface returns a 200 status code and the parsing task starts normally.
- Check the running logs of the parsing service to confirm that no external network data requests appear, verifying that the parsing process runs locally.
- Upload an industrial metals financial report file with an Excel attachment. Confirm that the parsing result includes structured field content from the Excel table.
- In the system settings of FastGPT 4.8.20-fix2, check the configuration path of the custom PDF parsing service. Confirm that the service address and port parameters are filled correctly.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.