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Operator & contact

Updated 20 October 2026.

Operator and privacy contacts

DUOPORE VENTURES PTE. LTD.
Private Company Limited by Shares, Singapore
Register: Accounting and Corporate Regulatory Authority (ACRA), Singapore
UEN: 202628284M (company registration number; not a VAT ID)
Represented by director Christoph Kaesler
68 CIRCULAR ROAD #02, unit no. 001
Singapore 049422

Support, privacy requests and reports of a data incident: +49 1567 9820108 or ch.kae88@gmail.com.

Singapore PDPA data protection officer and contact for deletion requests and data incidents: Christoph Kaesler, at the email and business address above.

EU representative under Article 27 GDPR: Kristina Liney, Burchardstraße 4, 18233 Neubukow, Germany. Contact the EU representative by post there or email the operator marked “For the EU representative” for routing. The Singapore PDPA DPO role does not itself appoint a GDPR DPO. Privacy enquiries may also be sent to the operator's email above for routing to the appropriate contact.

Service scope

One invoice draft in EUR, USD or GBP, up to 25 line items. You supply business details, numbering, dates and tax rates. The output is a draft, not a certified tax document or compliant electronic invoice. No sending, bookkeeping, payment collection or tax advice is provided. Check requirements applicable to your business before issuing an invoice.

Free current release

Using this tool and downloading its outputs is free. No checkout or automatic subscription is enabled. Your own internet access and any ChatGPT subscription you separately choose are outside this tool.

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