Evidence Layer

Vault

CoA, TDS, SDS/MSDS, test reports, contracts, compliance, RFQ and evidence are isolated in the vault layer with role-based access and audit history.

Evidence Library

Locked

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

GTOS Documentation Standard

Controlled Docs

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

Vendor-Neutral SDS/MSDS Assets

Vault Linked

Material	Type	Title	Vault Path	Status
copper	MSDS	YONGYEOKYO Copper Powder MSDS — vendor-neutral redacted	/vault/sds/YONGYEOKYO_Copper_Powder_MSDS_vendor-neutral.pdf	CONTROLLED DOWNLOAD
zinc	SDS	YONGYEOKYO Zinc Dust SDS — vendor-neutral redacted	/vault/sds/YONGYEOKYO_Zinc_Dust_SDS_vendor-neutral.pdf	AVAILABLE VENDOR NEUTRAL
cesium	SDS	YONGYEOKYO Cesium SDS — vendor-neutral redacted	/vault/sds/YONGYEOKYO_Cesium_SDS_vendor-neutral.pdf	AVAILABLE VENDOR NEUTRAL
rubidium	SDS	YONGYEOKYO Rubidium SDS — vendor-neutral redacted	/vault/sds/YONGYEOKYO_Rubidium_SDS_vendor-neutral.pdf	AVAILABLE VENDOR NEUTRAL

Vault Objects

Vault

Entity	Type	Scope	Status
CoA	Certificate	Vault	Locked
Contracts	Legal Document	Vault	Controlled
Compliance	Policy Evidence	Vault	Active
RFQ	Commercial Workflow	Vault	Active
Evidence	Audit Object	Vault	Locked