Ningbo / Advanced materials / Basic and process materials Company Structure Study

Comparative structure study

The largest recorded industry, Advanced materials, contains 70 records (87.5% of this 80-record cohort). The remaining cohort contains 10 records. The comparison concerns archive composition.

The recorded sub-industry label Magnetic materials / rare-earth permanent-magnet materials accounts for 12.5% here (10/80), compared with 1.9% in the parent set (54/2,854), an absolute gap of 10.6 percentage points.

18/80 companies link to pages with existing source-supported excerpts (22.5% of the cohort). The other 62 records remain usable for archive composition, but do not support new operating case studies.

An ID-deduplicated archive snapshot, not the whole market, current recognition or operating results.

The parent set, Advanced materials / Basic and process materials, contains 2,854 records. This cohort contributes 80 (2.8%); 2,774 records remain after excluding it.

The parent set, Ningbo, contains 410 records. This cohort contributes 80 (19.5%); 330 records remain after excluding it.

Ratio of label participation, not market share; multi-label counts overlap.

Excluding this cohort, the recorded sub-industry label Magnetic materials / rare-earth permanent-magnet materials covers 44/2,774 remaining records (1.6%), an absolute gap of 10.9 percentage points from this cohort.

The full industry distribution has 5 labels; the top 3 contain 78/80 records (97.5%).Other known labels contain 2 records.

For 80 records with known labels, the effective category count is 1.3, versus 5 actual labels. Definitions and scope are in the methodology.

Record counts do not rank supply capability or economic size.

Non-empty fields are not necessarily accurate or supported by originals.

Counts concern existing reviewed bilingual excerpts, not re-certification of originals or entire reports.

26 of this cohort’s 80 records link through existing company-ID mappings to 2026 lists from all jurisdictions (32.5%). This intersection measures list linkage, not successful recognition or company growth.

List rows and company IDs are separate counts, not new firms or final recognition.

The 2025 macro context for Zhejiang uses a different denominator from this cohort.

Material delivery requires stable-production evidence

The Functional materials and advanced-material platforms label covers 33 records (41.2% 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.

Shared records with Ningbo Company Structure Study: 80; records in this cohort but outside that set: 0. The intersection/union ratio is 19.5%, a measure of label overlap rather than business collaboration. Read comparison

Shared records with Magnetic Materials Ferrite Rare Earth Keyword Candidate Study: 12; records in this cohort but outside that set: 68. The intersection/union ratio is 7.2%, a measure of label overlap rather than business collaboration. Read comparison

Stable-ID samples, not rankings; metrics use the full cohort.