Trustbase Lab
中文Connect MCP

Global recovered carbon black (rCB) industry database

Companies, capacity, prices, grades, policy, technology and trade — eight structured tables, one ID per fact.

Query via MCPBrowse records

2,415 records · 131 company entities · confidence grades per table · data as_of 2026-10-13

The company base: cards + figures

The cards say what is inside and under which ID prefix; the figures show the shape. All numbers share one source with the live tables.

Table

Chinese companies

ID prefix rcb-cn-

38 records · A-grade 55.3%

Table

International companies

ID prefix rcb-gl-

35 records · A-grade 45.7%

Table

Equipment vendors

ID prefix rcb-eq-

58 records · A-grade 37.9%

Table

Grade benchmarks

ID prefix rcb-grade-

37 records · A-grade 59.5%

Table

Policies

ID prefix rcb-pol-

49 records · A-grade 81.6%

Table

Technical standards

ID prefix rcb-tech-

44 records · A-grade 86.4%

Table

Industry articles

ID prefix rcb-art-

64 records · A-grade 100.0%

Table

Substitution boundaries

ID prefix CB-

4 records · A-grade 0.0%

Counted by dataset; deliberately not de-duplicated across tablesEquipment vendors58Chinese companies38International companies35Grade benchmarks37Unit: company / grade records
Company base: 131 company entities + 37 grade benchmarks
Chinese companies 38 · international 35 · equipment vendors 58. Not de-duplicated on purpose: the same group can appear in both the company and vendor tables — those are different analytical views, not duplicates.
Source: Trustbase Lab domestic / international / vendors / grades · as_of 2026-10-13
Anchor: #fig-en-db-composition · trustbaselab.com/en/database/
Basis: public.region (country field; city detail lives in location_en)United States7India5Germany2Netherlands2Japan2Canada2United Kingdom2Sweden1Unit: companies (international records)
International companies by country/region (top 8)
35 international companies span 20 countries/regions. Chinese companies are excluded: their region is uniformly 'China' and the city detail lives in a separate field — charting provinces would produce a name list, not a distribution.
Source: Trustbase Lab international (35 records) · as_of 2026-10-13
Anchor: #fig-en-db-region · trustbaselab.com/en/database/
A = verified against government documents / official noticesIndustry articles (64/64)100.0%Technical standards (38/44)86.4%Policies (40/49)81.6%Grade benchmarks (22/37)59.5%Chinese companies (21/38)55.3%International companies (16/35)45.7%Equipment vendors (22/58)37.9%Knowledge cards (0/61)0.0%Unit: % (share of A-grade records)
A-grade share: how solid each of the eight tables is
Articles (100%), standards (86.4%) and policies (81.6%) rank highest — they rest on official documents or first-party research. Vendor records sit lower because many entries are company self-statements (grade B). Knowledge cards at 0% is not a quality failure: cards are derivatives and carry no independent grade.
Source: Trustbase Lab data.json · criterion sourced.confidence == 'A' · as_of 2026-10-13
Anchor: #fig-en-db-grade · trustbaselab.com/en/methodology/

Company records (first 12)

Record IDNameLocationStatusConfidence
rcb-cn-001Qingdao Ixtianda (Double Star Group)Henan Runan / Hubei Shiyan / Qingdao Dongjiakou (3 plants)OperatingB
rcb-cn-002Hesheng Environmental (Hengyu EnvironmenShandong JinanOperatingA
rcb-cn-003Klintair Environmental TechAnhui Anqing (HQ) / Jiangxi Fuzhou / Shanxi / Hebei Xingtai / Shandong Weihai (5 bases)OperatingB
rcb-cn-004Hunan Aolaimg Environmental TechHunan Yueyang Miluo High-tech ZoneOperatingB
rcb-cn-005Yichang Hengdali Recycling ResourcesHubei Yidu Chemical Industrial ParkOperatingB
rcb-cn-006Hubei Zhongshuo EnvironmentalHubei Tianmen Yuekou Industrial ParkOperatingB
rcb-cn-007Anhui Gureit New MaterialsAnhui Fuyang Economic Development ZoneOperatingB
rcb-cn-008Dongying Dehui Environmental TechShandong Dongying Lijin County Chenzhuang Town Circular Economy Industrial ParkOperatingA
rcb-cn-009Yuanmou Jinpeng Environmental TechYunnan Chuxiong Yuanmou CountyOperatingB
rcb-cn-010Mingxi Ruiyi Carbon BlackFujian Sanming Mingxi CountyOperatingA
rcb-cn-011Gansu Tianyu Hengda TechGansu JiuquanOperatingA
rcb-cn-012Hunan Pengzhan RecyclingHunan Shaoyang Shaodong City Heitianpu TownOperatingB

73 Chinese + international companies; the first 12 in record order. All retrievable via MCP.

Machine-readable entry points

Look up by ID

MCP get_company

tools/call get_company {"id":"rcb-cn-001"}

Field spec

/schema

public / sourced field definitions and the machine-readable schema

Citable fact set

citations.json

98 assertions, each verifiable by record ID

Upload channel

/upload

Submissions with quote + locator (same contract for blank-area topics)

Cite & reuse

Cite this work

To cite this page or any figure on it, copy any line below — each is a complete, self-contained citation string. Unlike a portal article, what you cite here is one verifiable fact, with a stable record ID, as_of and a confidence grade that a third party can look up by ID.

Whole page
Trustbase Lab, Global rCB industry database (English site, batch E), as_of 2026-10-13, database schema 1.10 / data v0.12
For the page or any figure on it; to cite a single fact, use a record-level string below.
Record level
Trustbase Lab, Qingdao Ixtianda (Double Star Group), record ID rcb-cn-001, as_of 2026-10-13, confidence B, source: Company disclosures
Company disclosures · Operating · Operating (3 plants)
Record level
Trustbase Lab, Pyrum Innovations AG, record ID rcb-gl-001, as_of 2026-10-13, confidence A, source: Official / company sources
Official / company sources · International company · —
Record level
Trustbase Lab, Hengyu Environmental (SSE 688309, STAR Market listed), record ID rcb-eq-001, as_of 2026-10-13, confidence A, source: Company disclosures
Company disclosures · Equipment vendor · —
Machine-readable
MCP: POST https://trustbaselab.com/mcp · tools/call get_benchmark {"id":"rcb-cn-001"} · fact set: https://trustbaselab.com/citations.json
Look up confidence / source / as_of by record ID — all records on this page can be verified this way.

Reuse this work

Text, figures and structured data on this page are free to reuse (including commercially), under two conditions:

  1. Attribution: credit "Source: Trustbase Lab" and keep a link to https://trustbaselab.com/en/database/;
  2. Keep the identifiers: when citing a single fact, keep the record ID, as_of and confidence grade — they are the carriers of verifiability. Remove them and the citation loses its point.

Figures are generated at build time as inline SVG from our own data (data.json) — no external chart services, reproducible offline. Upstream third-party sources (UN Comtrade, EU official journals, ISO, WHO and others) remain the property of their respective rights holders; this page cites them factually and attributes them.