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Research findings
Filter-difference study
Against the 881-record Grid Power Equipment Keyword Candidate Study, this 780-record cohort shares 760 records. Only 20 occur here and 121 only in the reference; the union contains 901. These are filter-membership differences, not company entries or exits.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 780 | 780 | 4.0% | 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 Power transmission and distribution equipment: 752/780 here versus 752/881 in the reference, an absolute difference of 11.1 percentage points. The cohorts have overlapping company IDs and are not independent samples.
| sub-industry | Focal count/base | Reference count/base | Participation gap (pp) |
|---|---|---|---|
| Power transmission and distribution equipment | 752/780 | 752/881 | +11.1 |
| Power transmission, distribution and control equipment | 0/780 | 24/881 | -2.7 |
| Power-sector informatisation and energy management | 0/780 | 7/881 | -0.8 |
| New-energy equipment and systems | 1/780 | 8/881 | -0.8 |
| Electronic assemblies and systems integration | 1/780 | 7/881 | -0.7 |
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 | 780 | 18,517 |
Observed labels
| Dimension | Label | Count/base | Participation |
|---|---|---|---|
| reporting jurisdiction | Jiangsu | 156/780 | 20.0% |
| reporting jurisdiction | Zhejiang | 91/780 | 11.7% |
| reporting jurisdiction | Shandong | 58/780 | 7.4% |
| reporting jurisdiction | Anhui | 41/780 | 5.3% |
| reporting jurisdiction | Guangdong | 41/780 | 5.3% |
| industry | Advanced equipment | 485/780 | 62.2% |
| industry | New energy and power equipment | 249/780 | 31.9% |
| industry | Next-generation information technology | 14/780 | 1.8% |
| industry | Producer services | 14/780 | 1.8% |
| industry | Advanced materials | 7/780 | 0.9% |
Multi-label counts can overlap; filter compliance is not industrial advantage.
Evidence and list-linkage counts
| Measure | Count |
|---|---|
| Companies with existing sourced excerpts | 288/780 |
| Existing reviewed bilingual excerpt pairs | 291 |
| IDs linked to 2026 local lists | 162/780 |
| Product-field rule reminders | 26/780 |
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 | 0/780 |
| Product field | 57/780 |
| Sub-industry | 765/780 |
Fields can overlap; hits establish search relevance only.
Recorded roles and delivery checks
Power-equipment design must connect to manufacturing and assembly
The Power transmission and distribution equipment label covers 752 records (96.4% of this cohort). This archive clue raises a verification question about Components or equipment with design-to-manufacturing fit documents; it does not establish that these companies already deliver it.
Delivery framework, stages and original sourcesRelated studies and shared records
Shared records with Power transmission and distribution equipment / New energy and power equipment / Complete systems and use-case applications Sub-industry and Supply-chain Study: 714; records in this cohort but outside that set: 66. The intersection/union ratio is 91.5%, a measure of label overlap rather than business collaboration. Read comparison
Shared records with Grid Power Equipment Keyword Candidate Study: 760; records in this cohort but outside that set: 20. The intersection/union ratio is 84.4%, a measure of label overlap rather than business collaboration. Read comparison
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Wolong Electric (Jinan) Motor.,ltd | Shandong | New-energy vehicles |
| Sichuan Weilide Energy Co., Ltd. | Sichuan | New energy and power equipment |
| Jiangsu Gufeng Electric Power Technology Co., Ltd. | Jiangsu | Advanced equipment |
| Jiangsu Hongyuan Electric Co., Ltd. | Jiangsu | Advanced equipment |
| Dingsheng Group Co., Ltd. | Jiangsu | New energy and power equipment |
| Beijing Herosail Power Science Technology Co., Ltd. | Beijing | Advanced equipment |
| Yunnan Yunkai Electric Co., Ltd. | Yunnan | Advanced equipment |
| CYG Electric Co., Ltd. | Guangdong | Advanced equipment |
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Wolong Electric (Jinan) Motor.,ltd | Company data profile |
| Sichuan Weilide Energy Co., Ltd. | Company data profile |
| Jiangsu Gufeng Electric Power Technology Co., Ltd. | Company report page |
| Jiangsu Hongyuan Electric Co., Ltd. | Company report page |
| Dingsheng Group Co., Ltd. | Company data profile |
| Beijing Herosail Power Science Technology Co., Ltd. | Company data profile |