GCN APP DATA COLLECTION
The DPP Issuer uploads Upstream data that includes fibre-level certifications, dye and finishing details, and a tiered chemical disclosure covering EU SVHC (REACH) compliance, restricted substances, and GCN's voluntary Substances of Concern register (a disclosed SVHC without linked evidence is flagged on the B2B record and in CSV exports for regulator review) — information that later helps sorters and recyclers divert items correctly. 

PMT/vPvM (Persistent, Mobile, Toxic / very Persistent, very Mobile) become mandatory for all substances placed on the EU market from 1 November 2026. https://www.echa.europa.eu/substances-of-potential-concern

SUBSTANCES OF CONCERN VOLUNTARY DISCLOSURE AVAILABLE ON GCN APP

These substances are not currently SVHC-listed or restricted under EU REACH — they are legally usable in textiles. GCN lists them for voluntary self-disclosure because they are recognised by international dermatology bodies (e.g. Australia's AICIS evaluation EVA00166 (December 2025), as textile contact allergens warranting caution. Disclosure helps downstream sorters and recyclers make informed diversion decisions, and helps brands designing for sensitive-skin markets evidence their claims.

CoC Tier 1 — most frequently documented contact allergens:
Disperse Blue 106 · Disperse Blue 124 · Disperse Orange 3 · Disperse Yellow 3

CoC Tier 2 — recognised, lower-frequency sensitisation concern:
Disperse Blue 82 · Disperse Blue 96 · Disperse Blue 102 · Disperse Blue 360

The register is reviewed as regulatory and dermatological evidence develops — substances that become SVHC-listed or restricted move up into GCN's mandatory disclosure tiers. New EU hazard classes for persistent, mobile and toxic substances (PMT/vPvM, mandatory from 1 November 2026) will be incorporated as classifications are published.