Regional and supply-chain research

Transformers Reactors Magnetic Components Keyword Candidate Study

Transformers Reactors Magnetic Components Keyword Candidate Study. A dated 109-record cohort study compares composition, parent sets and evidence coverage. Comparative structure study; archive date 2026-10-16.

Revision and archive snapshot: 2026-10-16

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Research findings

Comparative structure study

The largest recorded reporting jurisdiction, Jiangsu, contains 29 records (26.6% of this 109-record cohort). The remaining cohort contains 80 records. The comparison concerns archive composition.

The recorded industry label New energy and power equipment accounts for 59.6% here (65/109), compared with 3.9% in the parent set (757/19,297), an absolute gap of 55.7 percentage points.

33/109 companies link to pages with existing source-supported excerpts (30.3% of the cohort). The other 76 records remain usable for archive composition, but do not support new operating case studies.

7 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 cohortDirectly linked pagesShare of public archiveArchive date
1091090.6%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 109 (0.6%); 19,188 records remain after excluding it.

CategoryCohort count/baseReference: All public archive recordsGap (pp)Representation ratioRest count/base
industry · New energy and power equipment65/109 · 59.6%757/19,297 · 3.9%+55.715.20692/19,188
sub-industry · Power transmission and distribution equipment59/109 · 54.1%752/19,297 · 3.9%+50.213.89693/19,188
chain role · New energy and power equipment / Complete systems and use-case applications54/109 · 49.5%1,763/19,297 · 9.1%+40.45.421,709/19,188
industry · Next-generation information technology10/109 · 9.2%5,226/19,297 · 27.1%-17.90.345,216/19,188
chain role · New energy and power equipment / Core components and digital hardware19/109 · 17.4%180/19,297 · 0.9%+16.518.69161/19,188
chain role · Advanced equipment and industrial automation / Process equipment and inspection instruments9/109 · 8.3%4,085/19,297 · 21.2%-12.90.394,076/19,188
reporting jurisdiction · Jiangsu29/109 · 26.6%3,025/19,297 · 15.7%+10.91.702,996/19,188
industry · Advanced equipment17/109 · 15.6%4,918/19,297 · 25.5%-9.90.614,901/19,188
industry · Advanced materials11/109 · 10.1%3,381/19,297 · 17.5%-7.40.583,370/19,188
reporting jurisdiction · Henan5/109 · 4.6%517/19,297 · 2.7%+1.91.71512/19,188

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

Excluding this cohort, the recorded industry label New energy and power equipment covers 692/19,188 remaining records (3.6%), an absolute gap of 56.0 percentage points from this cohort.

Concentration and cross-sectional structure

The full reporting jurisdiction distribution has 26 labels; the top 3 contain 48/109 records (44.0%).Other known labels contain 61 records.

For 109 records with known labels, the effective category count is 9.5, versus 26 actual labels. Definitions and scope are in the methodology.

The table shows ten labels; 16 others are included in the calculations above.

Recorded labelRecordsShare of cohort
Jiangsu2926.6%
Zhejiang1110.1%
Shanghai87.3%
Shandong87.3%
Henan54.6%
Dalian43.7%
Guangdong43.7%
Chongqing43.7%
Beijing32.8%
Tianjin32.8%

Record counts do not rank supply capability or economic size.

The largest intersection, Jiangsu × New energy and power equipment, contains 22 records, or 75.9% of the 29 records carrying the Jiangsu label.

reporting jurisdictionindustryIntersection recordsCohort share
JiangsuNew energy and power equipment2220.2%
ZhejiangNew energy and power equipment65.5%
JiangsuAdvanced equipment54.6%
DalianNew energy and power equipment43.7%
ShandongNew energy and power equipment43.7%
ShanghaiNext-generation information technology32.8%
ShanghaiNew energy and power equipment32.8%
HenanNew energy and power equipment32.8%

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 52 non-empty cells; the other 44 remain in the analysis.

Evidence coverage and strength of conclusions

Record fieldNon-empty/cohortCompletion
Company name109/109100.0%
reporting jurisdiction109/109100.0%
industry109/109100.0%
Recorded products109/109100.0%
sub-industry109/109100.0%
Chain labels109/109100.0%

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

Scope of source supportCount
Profiles with source-supported excerpts33
Distinct corresponding companies33
Reviewed Chinese/English paragraph pairs33

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

Transparent rule reminderRecordsCohort share
Contains registration-narrative wording10.9%
Only generic operations vocabulary remains10.9%

A rule hit prioritises review; it does not establish that the entire field is wrong. One record can trigger several rules.

Matched fieldCandidatesCohort share
Company name3733.9%
Recorded products9990.8%
Sub-industry54.6%

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, “transformers” has the most matches: 82/109. Name, product and sub-industry fields match 28, 71 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 termCandidates/shareName matchesProduct fieldSub-industry
transformers82 · 75.2%28714

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.

7 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

31 of this cohort’s 109 records link through existing company-ID mappings to 2026 lists from all jurisdictions (28.4%). This intersection measures list linkage, not successful recognition or company growth.

Observation setList recordsNew-applicant recordsReview recordsMapped company IDs
National list records linked to this cohort’s IDs3113031

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

Stored 2026 local-recommendation records, sources and stage definitions

Recorded roles and delivery checks

Power-equipment design must connect to manufacturing and assembly

The Power transmission and distribution equipment label covers 59 records (54.1% of this cohort). This archive clue raises a verification question about Components or equipment with design-to-manufacturing fit documents; it does not establish that these companies already deliver it.

Delivery framework, stages and original sources

Related studies and shared records

Shared records with High Frequency Transformer Inductor Keyword Candidate Study: 18; records in this cohort but outside that set: 91. The intersection/union ratio is 16.5%, a measure of label overlap rather than business collaboration. Read comparison

Shared records with Magnetic Sensors Current Transformers Keyword Candidate Study: 17; records in this cohort but outside that set: 92. The intersection/union ratio is 14.9%, a measure of label overlap rather than business collaboration. Read comparison

Company samples and record links

CompanyJurisdictionRecorded industry
Far East Electric Appliance Group Co., Ltd.QingdaoNew energy and power equipment
Jiangsu Jingjiang Instrument Transformer Co., Ltd.JiangsuNew energy and power equipment
Yunnan Tongbian Electric Apparatus Co., Ltd.JiangsuNew energy and power equipment
Beijing Safety Test Technology Co., Ltd.BeijingAdvanced equipment
Jubang Group Co., Ltd.ZhejiangNew energy and power equipment
Jiangsu Yangdian Science & Technology Co., Ltd.JiangsuNew energy and power equipment
Jiangxi Mingzheng Transformer Equipment Co., Ltd.JiangxiBiomedicine
Zhejiang POWER Transformer Co., Ltd.ZhejiangAdvanced equipment

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

Directly related profiles and reports

Methodology

Read ID deduplication, comparison, batch and evidence definitions