What This Category's Data Looks Like
Coal chemical industry financial report data primarily comes from public disclosure platforms of the Shanghai and Shenzhen Stock Exchanges, annual and semi-annual enterprise reports, and public industry data released by the China Coal Processing and Utilization Association. This data is mainly used for enterprise valuation and industry analysis of coal chemical companies by financial institutions.
There are three update schedules:
- Annual reports are disclosed before April 30 each year.
- Semi-annual reports are updated before August 31 each year.
- Monthly production data is released before the 10th of each month.
Document structures include structured indicator tables and unstructured text descriptions. Structured fields include crude methanol output, coal-to-olefin production capacity, comprehensive energy consumption, operating revenue, and attributable net profit. Corresponding units are ten thousand tons, ten thousand tons, tons of standard coal per ten thousand yuan, ten thousand yuan, and ten thousand yuan respectively.
Constraints on HTTP Interfaces and External Systems
The multi-source, decentralized nature of coal chemical financial report data requires connecting to HTTP interfaces from multiple public data sources. Multiple sets of authentication rules must be configured to meet access requirements of different platforms.
Differences in update frequencies across data types require dynamic adjustment of interface pull intervals. This avoids invalid requests outside update windows.
Specialized fields and units require precise mapping of data returned by interfaces. General field matching logic cannot be used directly.
Long combined structured and unstructured content requires interfaces to support large text transmission and segmented parsing. Sufficient response time must be reserved.
Sudden spikes in data request volumes during disclosure windows require adjustment of interface concurrency to adapt to rate limiting rules of public platforms.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
API Data Source Timeout | 600 seconds | Coal chemical financial report documents have long lengths. Combined structured data and unstructured text can reach tens of thousands of characters per file. Sufficient interface response time must be reserved. |
Field Mapping Rules | Match specialized field names for coal chemical financial reports | Coal chemical financial reports include specialized fields such as crude methanol output and coal-to-olefin production capacity. External interface returned fields must be mapped to corresponding index fields in the knowledge base. |
Scheduled Pull Interval | 12 hours for monthly data, 1 hour during annual/semi-annual report windows | Match update frequencies of different types of financial report data. Avoid invalid requests and delayed access to latest data. |
Text Segmentation Length | 800–1200 characters | Coal chemical financial reports contain many specialized terms. Segmentation length adapts to complete parsing of long terms and avoids semantic breaks. |
Similarity Threshold | 0.75–0.85 | Distinguish specialized financial report terms from general text. Reduce recall probability of irrelevant content. |
API Request Concurrency | 5–10 concurrent requests | Coal chemical financial report data sources are mostly public disclosure platforms with low rate limiting thresholds. Avoid triggering interface bans. |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material form, data volume, and business rules. Specific issues require case-by-case analysis. It is recommended to test on your own samples before finalizing settings.
Three Common Configuration Mistakes
- The HTTP interface returns only text summaries without associated knowledge base file information. Cause: The
API return associated filesconfiguration item is not enabled. The default setting only returns retrieved text content. - The interface request returns a
429 Too Many Requestsstatus code. Cause: Concurrency has not been adjusted to match rate limiting rules of coal chemical public data sources. Platform request limits have been exceeded. - Interface returned fields do not match expectations. For example, operating revenue fields are identified as general sales fields. Cause: Specialized field mapping rules have not been configured. General field matching logic leads to incorrect mapping of coal chemical specialized fields.
How to Verify Configurations Are Correct
- Call the configured HTTP data source interface. Check if returned fields include specialized indicators for coal chemical financial reports. Confirm that field mapping configurations are active.
- View interface request logs. Confirm that request frequency and concurrency match set rate limiting rules. No rate limiting errors are triggered.
- Initiate a financial report analysis query. Check semantic integrity of recalled results. Confirm that text segmentation and similarity threshold configurations adapt to professional content parsing.
- Test batch requests during financial report disclosure windows. Confirm that interfaces are not rate limited and returned data is complete.
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.