If you have dual nationality or multiple nationalities and need to verify your OKX account, the core principle is simple: Use the official document that matches the "Country/Region of Residence" you selected during registration — not the passport that seems "most convenient" to you.
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Step 1: Understand What OKX Accepts
OKX's KYC system matches document requirements based on the Country/Region of Residence you selected when registering. If you selected Mainland China, the system will ask you to upload a second-generation Chinese ID card. If you selected Hong Kong, it accepts a Hong Kong ID card. If you selected Singapore, it accepts an NRIC.
Your residence determines the document type — not the other way around.
Step 2: Distinguish Between Nationality and Residence
OKX treats "nationality" and "residence" separately. What you select during registration is your residence, meaning where you actually live and which regional services you use on a daily basis. Nationality is verified during the KYC process using your document information.
So the correct logic is: Use the document accepted by the region you selected as your residence during registration, and fill in the nationality information on the document truthfully.
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Step 3: How to Choose the Safest Option If You Have Multiple Documents
Suppose you hold nationality of Country A, but you actually live in China and selected "Mainland China" when registering:
Recommended: Use your Chinese resident ID card to complete KYC. This is the document the system requires — other documents will not work.
Not recommended: Using a Country A passport to verify a Mainland China account, because the region and document type do not match.
If you selected Country A as your residence during registration and you actually live there:
Recommended: Use your Country A passport or local ID to complete verification. Submit the corresponding document as prompted by the system.
If you hold two valid passports, actually live in a third country, and selected that country of residence when registering:
Recommended: Use a valid government-issued ID from your country of residence to complete KYC. Do not use a passport as the primary document.
Common reason for failure: Using an EU passport to verify a Mainland China account. The system will reject it directly because the document's issuing country does not match your registered residence, and the automatic comparison will fail.
How to confirm completion: After submitting KYC, the system status must change from "Under Review" to "Verified" or "Lv.2" for verification to pass. If you receive a rejection notice saying "Document type does not match region", it means the document and registered residence truly do not match. You need to resubmit using the document type indicated by the system.
