Materials Registry → Material Profile

Cerium (Ce)

GTOS material profile for Cerium. Product forms are nested under the material, while Trust, Vault, Digital Twin and RFQ remain controlled integrations.

Materials Registry

Placed as a material profile, not as a standalone Products page.

Open →02

Trust Center

CAS/HS, supplier, batch, destination and restricted-party controls.

Open →03

Vault Evidence

CoA, TDS, SDS/MSDS, origin and export-control evidence remain locked until review.

Open →04

Digital Twin Route

APAC origin/review hub → Busan processing/commercial review → Incheon distribution → controlled buyer release

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Identity & Placement

Materials Registry

Field	Value	Scope	Status
Registry Placement	Materials Registry	Primary GTOS location	Active
Profile Type	Material Profile	Material-owned commercial forms	Active
Symbol	Ce	Material identifier	Active
CAS Number	7440-45-1	CORRECTED AND REQUIRES CONFIRMATION	Review
HS Code	2805.30 / classification review	Trade classification gate	Review
Strategic Class	CRITICAL	GTOS risk classification	CONTROLLED

Commercial Forms

Child Entities

Form	Type	Placement	Status
Metal	Child product form	Commercial configuration under material profile	RFQ gated
Oxide	Child product form	Commercial configuration under material profile	RFQ gated
Powder	Child product form	Commercial configuration under material profile	RFQ gated
Polishing material derivative	Child product form	Commercial configuration under material profile	RFQ gated
Custom specification upon RFQ	Child product form	Commercial configuration under material profile	RFQ gated

Applications

Buyer Context

Application	Type	Use	Status
polishing	Application Fit	Buyer qualification context	Informational
catalysts	Application Fit	Buyer qualification context	Informational
alloys	Application Fit	Buyer qualification context	Informational
electronics supply chain	Application Fit	Buyer qualification context	Informational

GTOS Operational Passport

Protocol / Evidence / Capacity

Integrated from Testing Methods, Technology and Home source documents into structured GTOS blocks: Protocol, Evidence, Specifications, Capacity, RFQ requirements and Legal Disclosure.

Protocol

Trust Center

Method	Scope	Evidence Output	Placement
GDMS / Spark Source Mass Spectrometry	Component analysis of high-purity metals across 70+ chemical elements with purity calculated from regulated impurities.	Laboratory test report, CoA impurity matrix, batch purity calculation	Trust Center → Testing Protocol
Gas analysis for O / N / H	Oxygen, nitrogen and hydrogen analysis for materials where gas-phase impurities affect quality or buyer qualification.	Gas analyzer report / O-N-H certificate attachment	Trust Center → Testing Protocol
SEM / Laser Diffraction	Powder morphology, particle size and particle distribution confirmation for powder material forms.	SEM image package, particle-size distribution report, laser diffraction report	Material Profile → Protocol

Specifications

Material Profile

Parameter	Value	Confirmation Gate
Material	Cerium (Ce)	Materials Registry identity check
CAS	7440-45-1	CAS/HS verification before RFQ unlock
HS Code	2805.30 / classification review	Trade classification gate
Commercial Forms	Metal, Oxide, Powder, Polishing material derivative, Custom specification upon RFQ	Form-specific TDS / CoA confirmation
Purity	Supplier-confirmed high-purity / rare-earth profile; RFQ confirmation required	Batch-specific CoA required
Testing Protocol	GDMS / Spark MS / O-N-H gas analysis / SEM or laser diffraction where applicable	Trust Center testing protocol

Evidence

Vault

Evidence	Owner	Purpose	Release Status
CoA / impurity matrix	Vault Evidence	Batch purity and regulated impurity confirmation	LOCKED UNTIL RFQ REVIEW
TDS / technical specification	Vault Evidence	Buyer technical validation and specification alignment	LOCKED UNTIL RFQ REVIEW
SDS / MSDS	Vault Evidence	Safety, handling, storage and transport assessment	CONTROLLED
Origin / chain-of-custody evidence	Vault Evidence	Traceability and route verification	SUPPLIER CONFIRMATION REQUIRED
Export-control / end-use review	Vault Evidence	Destination, sanctions, restricted-party and end-use screening	LOCKED UNTIL RFQ REVIEW

Capacity

RFQ Confirmed

Capability	Note	Placement
Supplier-confirmed availability	Capacity, stock, lead time and custom specification are confirmed only through RFQ.	Material Profile → Capacity
Custom production	Custom purity, particle size, form or packaging must be validated against supplier capability and compliance controls.	RFQ Gate → Quantity

GTOS Documentation Standard

Safety / Technical / Quality

Group	Document Type	Owner	Purpose	Status
Safety Documents	SDS (Safety Data Sheet)	Material Profile → Documentation	Safety classification, PPE, first aid, fire-fighting, storage, handling and transport baseline.	AVAILABLE
Safety Documents	MSDS (Material Safety Data Sheet)	Vault Evidence	Legacy or buyer-required material safety documentation retained as controlled evidence.	AVAILABLE
Safety Documents	Storage & Handling Guide	Trust Center → Safety Documentation	Operational guidance for humidity, inert atmosphere, ventilation, PPE and warehouse restrictions.	AVAILABLE ON REQUEST
Technical Documents	TDS (Technical Data Sheet)	Material Profile → Documentation	Technical validation of grade, form, particle size, purity, packaging and acceptance criteria.	LOCKED UNTIL RFQ REVIEW
Technical Documents	Packaging Specification	RFQ Gate → Documentation Requirements	Net weight, container type, sealing, palletization, ampoule/can/drum configuration and logistics readiness.	AVAILABLE ON REQUEST
Technical Documents	Export Classification (HS Code / export restrictions)	Trust Center → Safety Documentation	HS classification, destination screening, sanctions screening, end-use review and controlled-shipment decisioning.	LOCKED UNTIL RFQ REVIEW
Technical Documents	Certificates (ISO / REACH / RoHS / applicable certificates)	Vault Evidence	Buyer compliance package; availability depends on material, supplier, jurisdiction and batch.	IF AVAILABLE
Quality & Laboratory	CoA (Certificate of Analysis)	Vault Evidence	Batch-specific purity, impurity matrix and acceptance evidence.	BATCH SPECIFIC
Quality & Laboratory	ICP / GDMS / SEM / XRF / Particle Size Reports	Vault Evidence	Laboratory evidence for chemistry, impurity profile, morphology, particle distribution and buyer qualification.	IF AVAILABLE
Quality & Laboratory	Batch-specific Evidence	Vault Evidence	Lot number, chain of custody, origin evidence, sampling record, lab report and release authorization.	BATCH SPECIFIC
Download Center	Controlled Download Package	RFQ Gate → Documentation Requirements	Buyer-specific document bundle released only after RFQ validation and compliance approval.	LOCKED UNTIL RFQ REVIEW

RFQ Requirements

Required

Field	Required Input	Compliance Purpose
Quantity	Target volume, trial batch or monthly requirement	Capacity validation and commercial feasibility
Destination	Country, port/airport, consignee and final end-use location	Destination screening and route control
Purity / grade	Requested purity, grade, particle size or form specification	Technical match and CoA/TDS validation
Packaging	Container type, net weight, safety constraints and handling requirements	Transport safety and warehouse readiness
Incoterms	EXW / FCA / FOB / CIP / CPT or buyer-requested term	Shipment responsibility and documentation scope
Documentation	CoA, TDS, SDS/MSDS, origin evidence, certificates and custom documents	Vault release and compliance audit trail

Legal Disclosure Controls

Legal Gate

Control	Required Wording
No Public Offer	Material information is indicative registry content and does not constitute a public offer, quotation or shipment authorization.
Specification Confirmation	Purity, particle size, packaging, stock and production capacity are subject to supplier confirmation and batch-specific documentation.
Compliance Review	Price, documents and shipment release require RFQ approval, restricted-party screening, destination screening and end-use review.
Controlled Documentation	CoA, TDS, SDS/MSDS, origin evidence and export documents remain Vault-controlled until the buyer passes validation.
Export Control Notice	Shipment may be refused, delayed or re-routed where export-control, sanctions, end-use or transportation rules require it.

Trust Center

Controlled

Control	Module	Requirement	Status
CAS/HS verification	Trust Center	Required before document/price unlock	Controlled
supplier qualification	Trust Center	Required before document/price unlock	Controlled
batch traceability	Trust Center	Required before document/price unlock	Controlled
destination screening	Trust Center	Required before document/price unlock	Controlled
restricted party screening	Trust Center	Required before document/price unlock	Controlled

Vault Evidence

Locked

Evidence	Module	Package	Status
CoA	Vault Evidence	Document package	Locked
TDS	Vault Evidence	Document package	Locked
SDS/MSDS	Vault Evidence	Document package	Locked
Origin Evidence	Vault Evidence	Document package	Locked
Export Control Review	Vault Evidence	Document package	Locked
End-Use Declaration	Vault Evidence	Document package	Locked

RFQ Gate

Required

Input	Module	Purpose	Status
quantity	RFQ Gate	Buyer input / compliance condition	Required
purity/grade	RFQ Gate	Buyer input / compliance condition	Required
form	RFQ Gate	Buyer input / compliance condition	Required
packaging	RFQ Gate	Buyer input / compliance condition	Required
destination	RFQ Gate	Buyer input / compliance condition	Required
Incoterms	RFQ Gate	Buyer input / compliance condition	Required
required documents	RFQ Gate	Buyer input / compliance condition	Required
end-use confirmation	RFQ Gate	Buyer input / compliance condition	Required

Legal B2B Disclosure

Indicative profile only. Release requires CAS/HS confirmation, CoA/TDS validation and controlled RFQ approval.

Source note: Imported from Products CAS-Number list with CAS correction gate.