JOTAIN evidence center
Every claim, connected to proof.
From shareholder records and ISO systems to heat-linked MTCs and shipment documents, JOTAIN opens the verification route buyers need to qualify supply with confidence.
Four levels
From public record to released order.
Each step moves closer to the exact material, process and shipment being bought.
- 01
Visible now
The public page introduces the route, evidence holder, and records a buyer can inspect immediately.
- 02
Check in an official registry
Match the legal name, certificate number, facility, and current scope in the official registry.
- 03
Review during qualification
Match the entity and facility to the route being offered, then review the current supporting documents.
- 04
Issued for the order
Heat, lot, inspection, packing, and shipment records show what happened on the material actually supplied.
Public register
Nine records. Nine buyer questions answered.
Company, mill, laboratory, certificate, product and shipment records each prove a different part of the route. This register keeps their roles clear and their links visible.
Company identity and customs governancecompany-customs-governance
- Evidence holder
- Jotain Materials Co., Ltd. / 杭州玖田物资有限公司
- Visible now
- The About page connects the current brand, English operator, Chinese legal name, company history, and export-governance context. About JOTAIN →
- Official or issuer check
- Search the Chinese legal name or unified social credit code in China Customs Enterprise Information Disclosure and retain the current result. China Customs — Enterprise Information Disclosure ↗
- Review during qualification
- Current business licence, customs registration details, and the current AEO record where that status is relevant to the route.
- Issued for the order
- Seller and exporter identity carried consistently through the accepted contract, commercial invoice, packing list, declaration, and shipment documents.
- What this validates
- AEO confirms the named company's customs-governance status; mill, laboratory, and product evidence connect through their own records.
Upstream mill relationshipsupstream-mill-relationships
- Evidence holder
- Jotain Materials Co., Ltd. and the named upstream legal entity
- Visible now
- The Factory page separates JOTAIN-owned downstream processing, two production joint ventures established with major special-steel producers and managed by JOTAIN, and additional order-specific mill routes. Factory & Supply Network →
- Official or issuer check
- Match each disclosed legal entity in China's National Enterprise Credit Information Publicity System and review the current shareholder information available for that entity. National Enterprise Credit Information Publicity System ↗
- Review during qualification
- Current entity extract and relationship document, followed by the producing mill, origin, grade, route, and availability proposed for the RFQ.
- Issued for the order
- The accepted producing-mill route, material origin, heat identity, MTC issuer, and linked processing records.
- What this validates
- The relationships are established with major special-steel producers, backed by JOTAIN investment and continued through direct management. Each accepted order identifies the applicable producer, certificate holder, processing route and delivery scope.
Laboratory accreditation and test scopelaboratory-accreditation
- Evidence holder
- The named laboratory shown on the report and accreditation record
- Visible now
- The Quality page shows upstream laboratory activity and redacted MTC structures so buyers can see the kinds of fields and records used in release review. Quality and Documents →
- Official or issuer check
- Search the laboratory name or CNAS certificate number, then open the current accreditation annex and confirm the method or product is inside its published scope. CNAS — Information Query ↗
- Review during qualification
- Laboratory legal name, certificate number, current annex, test method, equipment route, sampling responsibility, and report format.
- Issued for the order
- The actual report linked to the heat, lot, sample, method, test date, result, and authorized signatory required by the accepted inspection plan.
- What this validates
- CNAS accreditation verifies competence within the published scope; the order report connects that competence to the specific heat, lot, method, and result.
ISO management-system certificationiso-management-system
- Evidence holder
- The legal entity and site named on the certificate
- Visible now
- The About page keeps company governance, manufacturing-system credentials, and product evidence in separate layers. About JOTAIN →
- Official or issuer check
- Verify the company or certificate in IAF CertSearch where the record is available, then read the status, standard, certified locations, scope, certification body, and accreditation body. IAF CertSearch ↗
- Review during qualification
- Current certificate, issuing certification body, accreditation route, legal entity, site address, scope, issue date, expiry date, and live status.
- Issued for the order
- Identification of the certified entity and facility that participate in the offered route, plus the order's own inspection and release records.
- What this validates
- ISO 9001 verifies the named entity, site, and management-system scope; order-specific inspection and release records carry product conformity.
IATF 16949 manufacturing-site certificationiatf-16949
- Evidence holder
- The manufacturing site and legal entity named on the certificate
- Visible now
- JOTAIN connects manufacturing-system credentials to the operating entity and site that carry the certified scope. About JOTAIN →
- Official or issuer check
- Check the certificate number and site with its issuing body, and confirm that the certification body remains recognised by IATF. IATF — Recognised Certification Bodies ↗
- Review during qualification
- Current certificate, IATF number or USI, manufacturing-site address, scope, remote-support locations, issuing body, and current validity.
- Issued for the order
- The named automotive manufacturing route, applicable site, control plan or buyer-specific requirements, and the lot-level release evidence agreed for the order.
- What this validates
- IATF 16949 verifies the named manufacturing site and scope; buyer-specific controls and lot-release records complete the automotive order file.
Material test certificate and heat traceabilitymaterial-test-certificate
- Evidence holder
- The producing mill or other issuer identified on the certificate
- Visible now
- Redacted MTC examples show the expected technical structure without exposing buyer, commercial, signature, stamp, or QR information. Redacted MTC examples →
- Official or issuer check
- Authenticate each MTC with the named issuer and compare the issuer, heat, product, standard, condition, tests, and traceability fields.
- Review during qualification
- An unredacted representative document and agreed document type, fields, issuer route, test basis, traceability chain, and deviation process.
- Issued for the order
- The original order MTC with actual results and a heat-to-lot-to-bundle link that matches markings and release records.
- What this validates
- The redacted sample shows the document architecture; the original order MTC carries the actual heat, batch, results, and release identity.
Third-party inspectionthird-party-inspection
- Evidence holder
- The inspection body named in the accepted inspection plan
- Visible now
- The Quality route explains where inspection requirements, methods, records, and third-party involvement are fixed before release. Quality and Documents →
- Official or issuer check
- Verify the exact inspection body and report through that body's official certificate or report-verification route; the agency must be named before its status can be checked.
- Review during qualification
- Agency, independence, inspection point, witness or hold point, method, acceptance criteria, access, reporting, and release authority.
- Issued for the order
- Approved inspection and test plan, attendance or witness record, report, nonconformance disposition where applicable, and shipment release linked to the order.
- What this validates
- Third-party inspection adds independent, order-specific verification when it is written into the accepted inspection plan.
Logistics facility and shipment executionlogistics-shipment
- Evidence holder
- The named warehouse, quay, carrier, forwarder, or export operator responsible for the stage
- Visible now
- The Production Route states JOTAIN's current export-hub capability summary and shows where packing, staging, customs, and shipment coordination enter the route. Packing and export staging →
- Official or issuer check
- Verify the shipment route by matching the named operator and facility to current qualification records, then check the booking and transport documents for the order.
- Review during qualification
- Responsible entity, facility address, handling and lifting limits, long-bar capability, access window, protection and packing plan, route availability, and insurance responsibility.
- Issued for the order
- Packing list, bundle and marking record, loading or tally evidence, customs record, booking, bill of lading or equivalent transport document, and delivery hand-off.
- What this validates
- Facility figures describe a supply-route capability. The responsible entity, availability, equipment, shipment mode, and commercial responsibility are confirmed for the order.
Customer case and operating resultcase-evidence
- Evidence holder
- The buyer-approved project record, linked supplier lot, and named operating window
- Visible now
- JOTAIN publishes trial and diagnosis methods that show how to build a comparable baseline before discussing wear, breakage, life, downtime, or cost outcomes. Controlled trial method →
- Official or issuer check
- Customer approval, traceable records, and a defined comparison basis turn public activity into a publishable case. JOTAIN official YouTube channel ↗
- Review during qualification
- Written publication permission, application and baseline, supplied lot and route, comparable time window, measurement method, exclusions, and customer-approved wording.
- Issued for the order
- Traceable lot, buyer-owned operating records, agreed comparison window, result calculation, deviations, and an approval record for the facts that may be published.
- What this validates
- Named customer and performance results are published with permission, traceable lot data, and a comparable operating basis.
External verification
Verify at the source.
Match each result to the legal name, certificate number, site and scope in the quotation.
National Enterprise Credit Information Publicity System ↗
Match the legal entity and review current public company and shareholder information.
China Customs — Enterprise Information Disclosure ↗
Check the named company's current customs registration and credit information.
CNAS — Information Query ↗
Match the laboratory name or certificate number, then read the current scope annex.
IAF CertSearch ↗
Check an accredited management-system certificate's entity, site, scope, issuer, and live status where available.
IATF recognised certification bodies ↗
Confirm that an IATF 16949 issuing body remains recognised, then verify the exact site certificate with that body.
Case evidence
A credible case starts with traceable results.
JOTAIN publishes a named case when the lot, baseline, measurement window and publication rights are documented. Until then, our controlled trial method gives buyers the structure to build a comparison worth trusting.
- Written permission to identify the customer, project, or location
- Application, current material, and operating baseline
- The supplied heat, lot, route, and inspection record
- A comparable time window and stated measurement method
- Changes, exclusions, uncertainty, and buyer-approved wording