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Research findings
Filter-difference study
Against the 693-record Energy conservation, environmental protection and resource recycling / Complete systems and use-case applications Supply-chain Study, this 640-record cohort shares 640 records. Only 0 occur here and 53 only in the reference; the union contains 693. These are filter-membership differences, not company entries or exits.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 640 | 640 | 3.3% | 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 equipment and treatment systems: 168/640 here versus 176/693 in the reference, an absolute difference of 0.9 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 equipment and treatment systems | 168/640 | 176/693 | +0.9 |
| Environmental protection equipment | 287/640 | 306/693 | +0.7 |
| Filtration materials and filter elements | 2/640 | 6/693 | -0.6 |
| Advanced medical devices | 24/640 | 29/693 | -0.4 |
| Producer services | 0/640 | 3/693 | -0.4 |
Zero means no recorded label, not no business; multi-label cells overlap.
Counts within parent sets
| Set | All records | This subset | Excluding this subset |
|---|---|---|---|
| Energy conservation, environmental protection and resource recycling / Complete systems and use-case applications | 693 | 640 | 53 |
| Energy conservation and environmental protection | 869 | 640 | 229 |
Observed labels
| Dimension | Label | Count/base | Participation |
|---|---|---|---|
| reporting jurisdiction | Jiangsu | 122/640 | 19.1% |
| reporting jurisdiction | Zhejiang | 58/640 | 9.1% |
| reporting jurisdiction | Beijing | 54/640 | 8.4% |
| reporting jurisdiction | Shandong | 50/640 | 7.8% |
| reporting jurisdiction | Guangdong | 41/640 | 6.4% |
Multi-label counts can overlap; filter compliance is not industrial advantage.
Evidence and list-linkage counts
| Measure | Count |
|---|---|
| Companies with existing sourced excerpts | 248/640 |
| Existing reviewed bilingual excerpt pairs | 255 |
| IDs linked to 2026 local lists | 132/640 |
| Product-field rule reminders | 7/640 |
Existing excerpts do not certify entire old reports; list linkage is not final recognition. Full definitions are on the series page.
Recorded roles and delivery checks
Assess environmental products against treatment media
The Environmental protection equipment label covers 287 records (44.8% of this cohort). This archive clue raises a verification question about Treatment equipment, materials or chemicals for defined objects; it does not establish that these companies already deliver it.
Delivery framework, stages and original sourcesRelated studies and shared records
Shared records with Energy conservation, environmental protection and resource recycling / Complete systems and use-case applications Supply-chain Study: 640; records in this cohort but outside that set: 0. The intersection/union ratio is 92.4%, a measure of label overlap rather than business collaboration. Read comparison
Shared records with Environmental Water Treatment Keyword Candidate Study: 541; records in this cohort but outside that set: 99. The intersection/union ratio is 66.6%, a measure of label overlap rather than business collaboration. Read comparison
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Fujian Zhongnengtaifeng ENERGY Saving Environmental Protection Technology Co., Ltd. | Fujian | Energy conservation and environmental protection |
| Wuhan Shengyu Smart Ecological Environmental Protection Co., Ltd. | Hubei | Energy conservation and environmental protection |
| Tianhe (Baoding)Environmental Engineering Co., Ltd. | Hebei | Energy conservation and environmental protection |
| Anhui Zhongyuan Environmental Protection Technology Co., Ltd. | Anhui | Energy conservation and environmental protection |
| Beijing Bolken Energy Technology Inc. | Beijing | Energy conservation and environmental protection |
| Shandong Ecological Home Environmental Protection Co., Ltd. | Shandong | Energy conservation and environmental protection |
| Qingdao HONEST Environmental Protection & Technology Co., Ltd. | Qingdao | Energy conservation and environmental protection |
| Wal Low CARBON Technology (Anhui) Co., Ltd. | Anhui | Energy conservation and environmental protection |
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Fujian Zhongnengtaifeng ENERGY Saving Environmental Protection Technology Co., Ltd. | Company report page |
| Wuhan Shengyu Smart Ecological Environmental Protection Co., Ltd. | Company data profile |
| Tianhe (Baoding)Environmental Engineering Co., Ltd. | Company report page |
| Anhui Zhongyuan Environmental Protection Technology Co., Ltd. | Company data profile |
| Beijing Bolken Energy Technology Inc. | Company data profile |
| Shandong Ecological Home Environmental Protection Co., Ltd. | Company data profile |