Sources behind every fact on this site.

Primary sources

• PRIMARY cardzgroup.com — corporate site (FAQ, company info, products pages).
• PRIMARY cardzgroup.com/news_1.html — news archive: 2009 founding-year orders, 2011 1M thermal-rewritable milestone.
• PRIMARY cardzgroup.com/companyinfo.html — founder background, Gemalto pedigree, Western ownership.
• PRIMARY cardzgroup.com/PvcCard.html — PVC card capabilities (300μm-810μm, CMYK + Pantone, 600M+ capacity).
• PRIMARY cardzgroup.com/BankCards.html — Visa & MasterCard recognition across continents.
• PRIMARY linkedin.com/company/cardzgroup — 50M+ cards/year output, sector list, role titles, HQ address.
• PRIMARY cardzgroup.co.za — Cardz Africa entity, founded 2009, hospitality vertical.

Trade press & secondary sources

• PRESS SMART Security Solutions (securitysa.com) — Aug 2018, "Introducing CardzGroup Africa" — 2018 hire of HID Global / ASSA ABLOY engineering lead.
• PRESS Terrapinn DigitalIDAfrica exhibitor record — Cardz Group Africa (Pty) Ltd public exhibitor listing.
• DIRECTORY Dun & Bradstreet — Cardz Group Africa (Pty) Ltd corporate listing (B-BBEE Level 1).
• DIRECTORY RocketReach — Cardzgroup company profile (HQ confirmation, role titles).
• SCHEME EMVCo — Visa & MasterCard EMV programme reference for body-recognition claim.
• STD ISO/IEC 14443A & ISO/IEC 7816-4 (NXP product datasheets) — for DESFire / JCOP compliance framing.
• STD ETSI TS 102.221 / 3GPP — for SIM card production framing.

What we deliberately did not include

• OMITTEDSpecific named customer logos. We have public-record customer sectors (banking, transit, hospitality, etc.) but we do not have reliable public sources for individual brand-name customer claims, so we omit them rather than guess.
• OMITTEDSpecific named individuals at Cardz China / Cardzgroup leadership. We use role titles only on the live site — directors, managing director, project managers — not personal names. (Names are public on LinkedIn but Chris asked us not to fabricate or assume.)
• OMITTEDSpecific named partner factories. The "four partner factories" claim is sourced and used; we do not name the factories themselves on the public site.
• OMITTEDCardz Hong Kong site / domain. Chris noted "in flight, deepening product section." We reference Cardz HK on the group page as a distinct entity but do not link to a specific live URL — Chris should add this once it is launched.