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Research findings
Filter-difference study
Against the 51-record Environmental Online Monitoring Keyword Candidate Study, this 46-record cohort shares 45 records. Only 1 occur here and 6 only in the reference; the union contains 52. These are filter-membership differences, not company entries or exits.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 46 | 46 | 0.2% | 2026-10-16 |
An ID-deduplicated archive snapshot, not the whole market, current recognition or operating results.
Filter differences and comparison link
The largest recorded sub-industry participation gap is for Environmental-monitoring instruments: 27/46 here versus 27/51 in the reference, an absolute difference of 5.8 percentage points. The cohorts have overlapping company IDs and are not independent samples.
| sub-industry | Focal count/base | Reference count/base | Participation gap (pp) |
|---|---|---|---|
| Environmental-monitoring instruments | 27/46 | 27/51 | +5.8 |
| Instrumentation and testing equipment | 5/46 | 8/51 | -4.8 |
| Radiation-monitoring instruments and nuclear-safety equipment | 1/46 | 0/51 | +2.2 |
| Medical devices and health equipment | 0/46 | 1/51 | -2.0 |
| RF and microwave devices | 0/46 | 1/51 | -2.0 |
Zero means no recorded label, not no business; multi-label cells overlap.
Counts within parent sets
| Set | All records | This subset | Excluding this subset |
|---|---|---|---|
| All public archive records | 19,297 | 46 | 19,251 |
Observed labels
| Dimension | Label | Count/base | Participation |
|---|---|---|---|
| reporting jurisdiction | Beijing | 9/46 | 19.6% |
| reporting jurisdiction | Shenzhen | 5/46 | 10.9% |
| reporting jurisdiction | Tianjin | 4/46 | 8.7% |
| reporting jurisdiction | Jiangsu | 4/46 | 8.7% |
| reporting jurisdiction | Guangdong | 3/46 | 6.5% |
| industry | Energy conservation and environmental protection | 28/46 | 60.9% |
| industry | Advanced equipment | 10/46 | 21.7% |
| industry | Next-generation information technology | 5/46 | 10.9% |
| industry | New energy and power equipment | 2/46 | 4.3% |
| industry | Biomedicine | 1/46 | 2.2% |
Multi-label counts can overlap; filter compliance is not industrial advantage.
Evidence and list-linkage counts
| Measure | Count |
|---|---|
| Companies with existing sourced excerpts | 16/46 |
| Existing reviewed bilingual excerpt pairs | 18 |
| IDs linked to 2026 local lists | 8/46 |
| Product-field rule reminders | 2/46 |
Existing excerpts do not certify entire old reports; list linkage is not final recognition. Full definitions are on the series page.
How candidates match
| Field | Matches/candidates |
|---|---|
| Name | 0/46 |
| Product field | 20/46 |
| Sub-industry | 32/46 |
Fields can overlap; hits establish search relevance only.
Recorded roles and delivery checks
Check traceability and conditions before comparing measurement data
The Environmental-monitoring and occupational-hygiene testing instruments label covers 1 records (2.2% of this cohort). This archive clue raises a verification question about Measurement data or instruments with defined objects and methods; it does not establish that these companies already deliver it.
Delivery framework, stages and original sourcesRelated studies and shared records
Shared records with Environmental Online Monitoring Keyword Candidate Study: 45; records in this cohort but outside that set: 1. The intersection/union ratio is 86.5%, a measure of label overlap rather than business collaboration. Read comparison
Shared records with High Voltage Cable Testing Monitoring Keyword Candidate Study: 8; records in this cohort but outside that set: 38. The intersection/union ratio is 17.0%, a measure of label overlap rather than business collaboration. Read comparison
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Yuhuang Ecological Technology Co., Ltd. | Guangdong | Energy conservation and environmental protection |
| Shenzhen Lightsun Technology Company Limited | Shenzhen | Energy conservation and environmental protection |
| Jiangsu Blue Chong Intelligent Technology Co., Ltd. | Jiangsu | Energy conservation and environmental protection |
| Hubei Yiyun Technology Development Co., Ltd. | Hubei | Energy conservation and environmental protection |
| Lihe Technology (Hunan) Co., Ltd. | Hunan | Energy conservation and environmental protection |
| Zhuhai Taide Enterprise Co., Ltd. | Guangdong | Advanced equipment |
| Shanxi Jixing Nuclear Electronic Information Technology Co., Ltd. | Shanxi | Advanced equipment |
| Shenzhen Santachi Video Technology Co., Ltd. | Shenzhen | Next-generation information technology |
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Yuhuang Ecological Technology Co., Ltd. | Company data profile |
| Shenzhen Lightsun Technology Company Limited | Company data profile |
| Jiangsu Blue Chong Intelligent Technology Co., Ltd. | Company data profile |
| Hubei Yiyun Technology Development Co., Ltd. | Company data profile |
| Lihe Technology (Hunan) Co., Ltd. | Company data profile |
| Zhuhai Taide Enterprise Co., Ltd. | Company data profile |