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Research findings
Filter-difference study
Against the 2,854-record Advanced materials / Basic and process materials Supply-chain Study, this 2,664-record cohort shares 2,664 records. Only 0 occur here and 190 only in the reference; the union contains 2,854. These are filter-membership differences, not company entries or exits.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 2,664 | 2,664 | 13.8% | 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 Functional materials and advanced-material platforms: 1,280/2,664 here versus 1,299/2,854 in the reference, an absolute difference of 2.5 percentage points. The cohorts have overlapping company IDs and are not independent samples.
| sub-industry | Focal count/base | Reference count/base | Participation gap (pp) |
|---|---|---|---|
| Functional materials and advanced-material platforms | 1,280/2,664 | 1,299/2,854 | +2.5 |
| Precision manufacturing | 0/2,664 | 32/2,854 | -1.1 |
| Metals and alloy materials | 279/2,664 | 284/2,854 | +0.5 |
| Polymers and composite materials | 182/2,664 | 183/2,854 | +0.4 |
| Electronic and functional materials | 14/2,664 | 26/2,854 | -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 |
|---|---|---|---|
| Advanced materials / Basic and process materials | 2,854 | 2,664 | 190 |
| Advanced materials | 3,381 | 2,664 | 717 |
Observed labels
| Dimension | Label | Count/base | Participation |
|---|---|---|---|
| reporting jurisdiction | Jiangsu | 424/2,664 | 15.9% |
| reporting jurisdiction | Zhejiang | 256/2,664 | 9.6% |
| reporting jurisdiction | Shandong | 232/2,664 | 8.7% |
| reporting jurisdiction | Guangdong | 195/2,664 | 7.3% |
| reporting jurisdiction | Anhui | 147/2,664 | 5.5% |
Multi-label counts can overlap; filter compliance is not industrial advantage.
Evidence and list-linkage counts
| Measure | Count |
|---|---|
| Companies with existing sourced excerpts | 953/2,664 |
| Existing reviewed bilingual excerpt pairs | 995 |
| IDs linked to 2026 local lists | 628/2,664 |
| Product-field rule reminders | 74/2,664 |
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
Material delivery requires stable-production evidence
The Functional materials and advanced-material platforms label covers 1,280 records (48.0% of this cohort). This archive clue raises a verification question about Materials of defined composition and form with batch documents; it does not establish that these companies already deliver it.
Delivery framework, stages and original sourcesRelated studies and shared records
Shared records with Advanced materials / Basic and process materials Supply-chain Study: 2,664; records in this cohort but outside that set: 0. The intersection/union ratio is 93.3%, a measure of label overlap rather than business collaboration. Read comparison
Shared records with Functional Materials Keyword Candidate Study: 1,953; records in this cohort but outside that set: 711. The intersection/union ratio is 66.0%, a measure of label overlap rather than business collaboration. Read comparison
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Changzhou Leining Electromagnetism Screen Equipment Co., Ltd. | Jiangsu | Advanced materials |
| Zhejiang Deqing Kesai Plastic Products Co., Ltd. | Zhejiang | Advanced materials |
| Xianning Haiwei Composite Materials Co., Ltd. | Hubei | Advanced materials |
| Shandong Haina Intelligent Equipment Technology(Group) Co., Ltd. | Shandong | Advanced materials |
| Shenzhen Feiyang Protech Corp.,Ltd | Shenzhen | Advanced materials |
| Hunan Liangcheng New Materials Technology Co., Ltd. | Hunan | Advanced materials |
| Hubei Junbang New Material Technology Co., Ltd. | Hubei | Advanced materials |
| JiangSu CheeShine Performance Materials Co., Ltd. | Jiangsu | Advanced materials |
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Changzhou Leining Electromagnetism Screen Equipment Co., Ltd. | Company data profile |
| Zhejiang Deqing Kesai Plastic Products Co., Ltd. | Company data profile |
| Xianning Haiwei Composite Materials Co., Ltd. | Company report page |
| Shandong Haina Intelligent Equipment Technology(Group) Co., Ltd. | Company data profile |
| Shenzhen Feiyang Protech Corp.,Ltd | Company data profile |
| Hunan Liangcheng New Materials Technology Co., Ltd. | Company data profile |