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Research findings
Comparative structure study
The largest recorded reporting jurisdiction, Jiangsu, contains 8 records (14.8% of this 54-record cohort). The remaining cohort contains 46 records. The comparison concerns archive composition.
The recorded chain role label Construction materials and infrastructure / Complete systems and use-case applications accounts for 31.5% here (17/54), compared with 1.0% in the parent set (189/19,297), an absolute gap of 30.5 percentage points.
19/54 companies link to pages with existing source-supported excerpts (35.2% of the cohort). The other 35 records remain usable for archive composition, but do not support new operating case studies.
3 keyword candidates match only a company name, with no matching term in recorded products or sub-industry fields. Product evidence is needed before treating these as operating businesses in this segment.
| Company cohort | Directly linked pages | Share of public archive | Archive date |
|---|---|---|---|
| 54 | 54 | 0.3% | 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, All public archive records, contains 19,297 records. This cohort contributes 54 (0.3%); 19,243 records remain after excluding it.
| Category | Cohort count/base | Reference: All public archive records | Gap (pp) | Representation ratio | Rest count/base |
|---|---|---|---|---|---|
| chain role · Construction materials and infrastructure / Complete systems and use-case applications | 17/54 · 31.5% | 189/19,297 · 1.0% | +30.5 | 32.14 | 172/19,243 |
| sub-industry · Structural building materials | 12/54 · 22.2% | 81/19,297 · 0.4% | +21.8 | 52.94 | 69/19,243 |
| industry · Advanced equipment | 22/54 · 40.7% | 4,918/19,297 · 25.5% | +15.3 | 1.60 | 4,896/19,243 |
| industry · Advanced materials | 14/54 · 25.9% | 3,381/19,297 · 17.5% | +8.4 | 1.48 | 3,367/19,243 |
| sub-industry · Construction and heavy machinery | 5/54 · 9.3% | 187/19,297 · 1.0% | +8.3 | 9.55 | 182/19,243 |
| reporting jurisdiction · Qingdao | 5/54 · 9.3% | 259/19,297 · 1.3% | +7.9 | 6.90 | 254/19,243 |
| reporting jurisdiction · Hunan | 5/54 · 9.3% | 667/19,297 · 3.5% | +5.8 | 2.68 | 662/19,243 |
| reporting jurisdiction · Shandong | 6/54 · 11.1% | 1,217/19,297 · 6.3% | +4.8 | 1.76 | 1,211/19,243 |
| chain role · Advanced equipment and industrial automation / Process equipment and inspection instruments | 14/54 · 25.9% | 4,085/19,297 · 21.2% | +4.8 | 1.22 | 4,071/19,243 |
| reporting jurisdiction · Jiangsu | 8/54 · 14.8% | 3,025/19,297 · 15.7% | -0.9 | 0.95 | 3,017/19,243 |
Ratio of label participation, not market share; multi-label counts overlap.
Excluding this cohort, the recorded chain role label Construction materials and infrastructure / Complete systems and use-case applications covers 172/19,243 remaining records (0.9%), an absolute gap of 30.6 percentage points from this cohort.
Concentration and cross-sectional structure
The full reporting jurisdiction distribution has 18 labels; the top 3 contain 19/54 records (35.2%).Other known labels contain 35 records.
For 54 records with known labels, the effective category count is 12.5, versus 18 actual labels. Definitions and scope are in the methodology.
The table shows ten labels; 8 others are included in the calculations above.
| Recorded label | Records | Share of cohort |
|---|---|---|
| Jiangsu | 8 | 14.8% |
| Shandong | 6 | 11.1% |
| Hunan | 5 | 9.3% |
| Qingdao | 5 | 9.3% |
| Beijing | 4 | 7.4% |
| Anhui | 4 | 7.4% |
| Zhejiang | 4 | 7.4% |
| Shanghai | 3 | 5.6% |
| Guangxi | 3 | 5.6% |
| Sichuan | 2 | 3.7% |
Record counts do not rank supply capability or economic size.
The largest intersection, Jiangsu × Advanced materials, contains 5 records, or 62.5% of the 8 records carrying the Jiangsu label.
| reporting jurisdiction | industry | Intersection records | Cohort share |
|---|---|---|---|
| Jiangsu | Advanced materials | 5 | 9.3% |
| Shandong | Advanced equipment | 4 | 7.4% |
| Qingdao | Advanced materials | 3 | 5.6% |
| Shanghai | Advanced equipment | 2 | 3.7% |
| Beijing | Advanced equipment | 2 | 3.7% |
| Anhui | Advanced equipment | 2 | 3.7% |
| Guangxi | Advanced materials | 2 | 3.7% |
| Jiangsu | Advanced equipment | 2 | 3.7% |
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 38 non-empty cells; the other 30 remain in the analysis.
Evidence coverage and strength of conclusions
| Record field | Non-empty/cohort | Completion |
|---|---|---|
| Company name | 54/54 | 100.0% |
| reporting jurisdiction | 54/54 | 100.0% |
| industry | 54/54 | 100.0% |
| Recorded products | 54/54 | 100.0% |
| sub-industry | 54/54 | 100.0% |
| Chain labels | 54/54 | 100.0% |
Non-empty fields are not necessarily accurate or supported by originals.
| Scope of source support | Count |
|---|---|
| Profiles with source-supported excerpts | 19 |
| Distinct corresponding companies | 19 |
| Reviewed Chinese/English paragraph pairs | 21 |
Counts concern existing reviewed bilingual excerpts, not re-certification of originals or entire reports.
| Transparent rule reminder | Records | Cohort share |
|---|---|---|
| Contains registration-narrative wording | 1 | 1.9% |
A rule hit prioritises review; it does not establish that the entire field is wrong. One record can trigger several rules.
| Matched field | Candidates | Cohort share |
|---|---|---|
| Company name | 8 | 14.8% |
| Recorded products | 49 | 90.7% |
| Sub-industry | 5 | 9.3% |
An ID may match several fields, so counts may exceed the cohort total. Matches establish search relevance only.
Among the translated non-broad query terms, “steel structures” has the most matches: 36/54. Name, product and sub-industry fields match 6, 33 and 4 records respectively; the largest field is product field. Fields can overlap, and a term remains a search link rather than verified business activity.
| Selected query term | Candidates/share | Name matches | Product field | Sub-industry |
|---|---|---|---|---|
| steel structures | 36 · 66.7% | 6 | 33 | 4 |
Selected broad terms and specific segment terms, not the full query. Terms and fields can overlap and must not be summed. Counts show lexical sensitivity; no records are removed without primary evidence.
3 candidates match only a name, or lose all product-field matches after the full company name is removed while sub-industry also has no hit. This transparent string test locates copied company descriptions; it does not establish that a company does not operate the business.
Intersection with 2026 local lists
16 of this cohort’s 54 records link through existing company-ID mappings to 2026 lists from all jurisdictions (29.6%). 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 | 16 | 0 | 16 | 16 |
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
Material delivery requires stable-production evidence
The Structural building materials label covers 12 records (22.2% 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 Road Bridge Materials Maintenance Keyword Candidate Study: 9; records in this cohort but outside that set: 45. The intersection/union ratio is 10.2%, a measure of label overlap rather than business collaboration. Read comparison
Shared records with Green Building Materials Prefabricated Keyword Candidate Study: 11; records in this cohort but outside that set: 43. The intersection/union ratio is 9.8%, a measure of label overlap rather than business collaboration. Read comparison
Company samples and record links
| Company | Jurisdiction | Recorded industry |
|---|---|---|
| Hebei JingtongbuiIding Technology Co., Ltd. | Hebei | Advanced materials |
| Anhui Changjiang Fasteners Co., Ltd. | Anhui | Advanced equipment |
| Karui Cranes Co., Ltd. | Henan | Biomedicine |
| Jiangmen Hangtong Shipbuilding of CCCC Fourth Harbor Engineering Co., Ltd. | Guangdong | Advanced equipment |
| China Railway Heavy Industry Co., Ltd. | Hubei | Advanced equipment |
| Fujian Hongguan ROAD & BRIDGE ANTI-CORROSIVE Technology Co., Ltd. | Fujian | Advanced chemicals |
| Hunan Dongan Xiangjiang Welding Material Co., Ltd. | Hunan | Advanced chemicals |
| Hengshui Yitong PIPE Industry Co., Ltd. | Hebei | Advanced materials |
Stable-ID samples, not rankings; metrics use the full cohort.
Directly related profiles and reports
| Page | Presentation |
|---|---|
| Hebei JingtongbuiIding Technology Co., Ltd. | Company data profile |
| Anhui Changjiang Fasteners Co., Ltd. | Company data profile |
| Karui Cranes Co., Ltd. | Company data profile |
| Jiangmen Hangtong Shipbuilding of CCCC Fourth Harbor Engineering Co., Ltd. | Company data profile |
| China Railway Heavy Industry Co., Ltd. | Company report page |
| Fujian Hongguan ROAD & BRIDGE ANTI-CORROSIVE Technology Co., Ltd. | Company report page |