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Research findings
Comparative structure study
The largest recorded reporting jurisdiction, Jiangsu, contains 27 records (14.3% of this 189-record cohort). The remaining cohort contains 162 records. The comparison concerns archive composition.
The recorded industry label Producer services accounts for 32.3% here (61/189), compared with 24.5% in the parent set (69/282), an absolute gap of 7.8 percentage points.
78/189 companies link to pages with existing source-supported excerpts (41.3% of the cohort). The other 111 records remain usable for archive composition, but do not support new operating case studies.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 189 | 189 | 1.0% | 2026-10-16 |
An ID-deduplicated archive snapshot, not the whole market, current recognition or operating results.
Comparable sets and compositional differences
The parent set, Construction materials and infrastructure, contains 282 records. This cohort contributes 189 (67.0%); 93 records remain after excluding it.
The parent set, All public archive records, contains 19,297 records. This cohort contributes 189 (1.0%); 19,108 records remain after excluding it.
| Category | Cohort count/base | Reference: Construction materials and infrastructure | Gap (pp) | Representation ratio | Rest count/base |
|---|---|---|---|---|---|
| industry · Producer services | 61/189 · 32.3% | 69/282 · 24.5% | +7.8 | 1.32 | 8/93 |
| sub-industry · Building materials | 9/189 · 4.8% | 31/282 · 11.0% | -6.2 | 0.43 | 22/93 |
| industry · Next-generation information technology | 19/189 · 10.1% | 39/282 · 13.8% | -3.8 | 0.73 | 20/93 |
| sub-industry · Infrastructure engineering | 46/189 · 24.3% | 59/282 · 20.9% | +3.4 | 1.16 | 13/93 |
| industry · Advanced equipment | 25/189 · 13.2% | 46/282 · 16.3% | -3.1 | 0.81 | 21/93 |
| sub-industry · Structural building materials | 60/189 · 31.7% | 81/282 · 28.7% | +3.0 | 1.11 | 21/93 |
| reporting jurisdiction · Jiangsu | 27/189 · 14.3% | 33/282 · 11.7% | +2.6 | 1.22 | 6/93 |
| reporting jurisdiction · Shanghai | 9/189 · 4.8% | 20/282 · 7.1% | -2.3 | 0.67 | 11/93 |
| reporting jurisdiction · Beijing | 8/189 · 4.2% | 18/282 · 6.4% | -2.2 | 0.66 | 10/93 |
| reporting jurisdiction · Zhejiang | 13/189 · 6.9% | 25/282 · 8.9% | -2.0 | 0.78 | 12/93 |
Ratio of label participation, not market share; multi-label counts overlap.
Excluding this cohort, the recorded industry label Producer services covers 8/93 remaining records (8.6%), an absolute gap of 23.7 percentage points from this cohort.
Concentration and cross-sectional structure
The full reporting jurisdiction distribution has 29 labels; the top 3 contain 58/189 records (30.7%).Other known labels contain 131 records.
For 189 records with known labels, the effective category count is 15.5, versus 29 actual labels. Definitions and scope are in the methodology.
The table shows ten labels; 19 others are included in the calculations above.
| Recorded label | Records | Share of cohort |
|---|---|---|
| Jiangsu | 27 | 14.3% |
| Guangdong | 16 | 8.5% |
| Hebei | 15 | 7.9% |
| Zhejiang | 13 | 6.9% |
| Hubei | 13 | 6.9% |
| Shandong | 12 | 6.3% |
| Anhui | 10 | 5.3% |
| Shanghai | 9 | 4.8% |
| Tianjin | 9 | 4.8% |
| Ningbo | 9 | 4.8% |
Record counts do not rank supply capability or economic size.
The largest intersection, Jiangsu × Advanced materials, contains 13 records, or 48.1% of the 27 records carrying the Jiangsu label.
| reporting jurisdiction | industry | Intersection records | Cohort share |
|---|---|---|---|
| Jiangsu | Advanced materials | 13 | 6.9% |
| Hubei | Producer services | 10 | 5.3% |
| Hebei | Advanced materials | 9 | 4.8% |
| Shandong | Advanced materials | 6 | 3.2% |
| Beijing | Producer services | 5 | 2.6% |
| Tianjin | Producer services | 5 | 2.6% |
| Guangdong | Advanced equipment | 5 | 2.6% |
| Jiangsu | Producer services | 5 | 2.6% |
A cell contains company IDs carrying both labels. It does not establish procurement, supply or investment relationships between firms. Multi-label cells may overlap.
This page displays 8 of the full cross-tab’s 81 non-empty cells; the other 73 remain in the analysis.
Evidence coverage and strength of conclusions
| Record field | Non-empty/cohort | Completion |
|---|---|---|
| Company name | 189/189 | 100.0% |
| reporting jurisdiction | 189/189 | 100.0% |
| industry | 189/189 | 100.0% |
| Recorded products | 189/189 | 100.0% |
| sub-industry | 189/189 | 100.0% |
| Chain labels | 189/189 | 100.0% |
Non-empty fields are not necessarily accurate or supported by originals.
| Scope of source support | Count |
|---|---|
| Profiles with source-supported excerpts | 78 |
| Distinct corresponding companies | 78 |
| Reviewed Chinese/English paragraph pairs | 81 |
Counts concern existing reviewed bilingual excerpts, not re-certification of originals or entire reports.
| Transparent rule reminder | Records | Cohort share |
|---|---|---|
| Contains registration-narrative wording | 3 | 1.6% |
| Only generic operations vocabulary remains | 6 | 3.2% |
A rule hit prioritises review; it does not establish that the entire field is wrong. One record can trigger several rules.
Intersection with 2026 local lists
40 of this cohort’s 189 records link through existing company-ID mappings to 2026 lists from all jurisdictions (21.2%). This intersection measures list linkage, not successful recognition or company growth.
| Observation set | List records | New-applicant records | Review records | Mapped company IDs |
|---|---|---|---|---|
| National list records linked to this cohort’s IDs | 40 | 0 | 40 | 40 |
List rows and company IDs are separate counts, not new firms or final recognition.
Stored 2026 local-recommendation records, sources and stage definitionsRecorded roles and delivery checks
Traditional materials require product and manufacturing checks
The Structural building materials label covers 60 records (31.7% of this cohort). This archive clue raises a verification question about Defined building products or production equipment with quality documents; it does not establish that these companies already deliver it.
Delivery framework, stages and original sourcesRelated studies and shared records
Shared records with Construction Machinery Building Equipment Keyword Candidate Study: 48; records in this cohort but outside that set: 141. The intersection/union ratio is 12.1%, a measure of label overlap rather than business collaboration. Read comparison
Shared records with Prefabricated Steel Structure Components Keyword Candidate Study: 17; records in this cohort but outside that set: 172. The intersection/union ratio is 7.5%, a measure of label overlap rather than business collaboration. Read comparison
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Yingpurui Electronic Technology (Jiaxing) Co., Ltd. | Zhejiang | Advanced equipment |
| Guangzhou Institute of Building Science Group Co., Ltd. | Guangdong | Next-generation information technology |
| Xiangshan Conch Cement Co., Ltd. | Ningbo | Advanced equipment |
| Ningbo Kehuan New Building Materials Co., Ltd. | Ningbo | Energy conservation and environmental protection |
| Hunan Zhenhui Pipe Industry Co., Ltd. | Hunan | Advanced materials |
| Shanghai Jukun Technology Co., Ltd. | Shanghai | Energy conservation and environmental protection |
| Wuhu Taihe Pipe Industry Co., Ltd. | Anhui | Advanced materials |
| BSS Jiangsu Co., Ltd. | Jiangsu | Advanced materials |
Stable-ID samples, not rankings; metrics use the full cohort.
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Yingpurui Electronic Technology (Jiaxing) Co., Ltd. | Company data profile |
| Guangzhou Institute of Building Science Group Co., Ltd. | Company data profile |
| Xiangshan Conch Cement Co., Ltd. | Company data profile |
| Ningbo Kehuan New Building Materials Co., Ltd. | Company data profile |
| Hunan Zhenhui Pipe Industry Co., Ltd. | Company data profile |
| Shanghai Jukun Technology Co., Ltd. | Company data profile |