Business identity is shown on the public business-information page.
Document verification
Certificates, Standards and Verification Documents
A certificate is useful only when it is current, issued to the correct legal entity, covers the relevant site or product, and can be linked to the order. This page avoids unsupported badges and separates public company evidence from project-specific records.
No unsupported badge useIssuer and scope validationOrder-linked records
MTC/MTR, chemistry, inspection and test reports depend on product and order.
Witnessing or laboratory work is not implied unless agreed and documented.
Evidence register
Different documents answer different questions
The buyer should request the document that proves the actual requirement instead of relying on a generic certificate logo.
| Document | What it can demonstrate | What it does not prove |
|---|---|---|
| Business registration | Legal entity, registered address and business scope | Product conformity or project performance |
| Management-system certificate | Defined management system, certified site/scope and validity period | Conformity of a specific shipment without order evidence |
| DNV Type Approval TAS0000505 | HYAL Al-Zn-In sacrificial-anode material within the stated certificate validity and conditions | Finished-anode design, every geometry, installation or complete CP design |
| BV project Certificate of Compliance | Third-party review/witness scope for one defined 148-piece Al-Zn-In project batch | General BV type approval or unrelated products/batches |
| MTC/MTR or chemistry report | Material or heat/batch composition under the stated sampling basis | Geometry, assembly quality or field performance |
| Inspection report | Measured dimensions, mass, continuity, visual or other listed checks | Unlisted properties or all future batches |
| Electrochemical test report | Result under a named method, specimen and test conditions | Universal field output or service life |
| Supplier declaration/CoC | Supplier statement against a named order or specification | Independent verification unless an external issuer is explicitly identified |
Verified records
Current evidence summarized without expanding its scope
Controlled copies are available during supplier qualification where confidentiality and issuing-body terms permit. No report page, customer serial list or personal contact data is published here.
| Record | Verified public summary | Boundary |
|---|---|---|
| DNV TAS0000505 | HYAL Al-Zn-In sacrificial-anode material; issued 19 Sep 2025; valid through 18 Sep 2030 | Material approval only; subject to certificate conditions and periodic assessment |
| DNV report JQ2554215XY | Five-sample, 12-month natural-seawater test witnessed/reviewed by DNV; mean capacity 2,441 Ah/kg | Tested samples and stated conditions only |
| BVMC-OFI-TRC/WH-25/420-COC-001 | Project-specific third-party CoC for 148 Al-Zn-In anodes, issued 27 Oct 2025 | Named project batch only; not BV Type Approval |
| USTB 2026(H/N)0035 | Commissioned zinc-ribbon chemistry testing using GB/T 26042-2010 and 17-SAMSS-006 references | Submitted sample only; detailed report remains controlled |
| USTB 2026(Q)0076 | Commissioned 336-hour zinc-ribbon electrochemical testing with NACE TM0190-2022 and cited ASTM methods | Four submitted samples only; detailed report remains controlled |
Validation checklist
Verify before relying on a document
The same checks should be applied to our documents and to any supplier under comparison.
Match the legal entity
Confirm company name, address/site and certificate holder.
Confirm status and dates
Check issue, expiry, revision and current validity with the issuer where possible.
Read the scope
Verify that the certificate or report covers the relevant site, product, process or test.
Link to the order
Match project, purchase order, item, heat/batch, sample or serial identifiers.
Check the method
For test reports, verify procedure, conditions, units, acceptance criteria and laboratory identity.
Supplier qualification
Request the right evidence package
Sensitive commercial records or customer information are shared only when permitted.
Company