KOCA Seller Identity Verification Policy

Last updated: 10/03/2026

This English translation is provided for convenience. If there is any inconsistency, the Traditional Chinese version prevails.

Identity Verification Is Not Available to Minors

Minors should have a legal guardian complete the verification

Before you start identity verification, please prepare the following documents:

1. Republic of China (Taiwan) national ID card

2. The cover page of your own bank or post office passbook

🏢 Business accounts: For the ID, provide the ID of the responsible person; for the passbook, upload a business account whose account name matches the company's registered name, and also prepare company registration documents (such as the company establishment / change registration form or a business registration transcript) that clearly show the name, tax ID number, and responsible person.

🔔 If you use a "digital account" or "online banking", refer to each bank's tutorial on exporting an e-passbook, and upload an e-passbook that contains your Chinese name. (For CTBC customers, if the exported e-passbook has no Chinese name, see the online tutorials.)

Please do not upload a debit card or account details from a banking app

3. Make sure your phone's front camera works

In a later step you will need to turn on the front camera and take a photo while holding your ID, to confirm that the ID is being used by its owner

To maintain the safety of the KOCA trading environment, and in accordance with the KOCA Terms of Service, the Business Accounting Act, the Personal Data Protection Act, and related rules, you must complete the following identity verification process before you apply to sell on KOCA and become a seller. Please read this policy carefully and agree to its contents before proceeding with identity verification.

1. Identity Verification Data Items

You must provide the following information to complete seller identity verification:

Name (must match your ID)
A valid government-issued identity document (for example: national ID card, passport, or driver's license)
Valid contact information (phone number, email address)
Bank account information (used for settling transaction payments)

KOCA reserves the right to request other necessary supplementary information as needed to ensure the accuracy and completeness of verification.

2. Use and Protection of Data

The information you submit is used only for the following purposes:

Verifying the user's true identity
Complying with the platform Terms of Service and related legal compliance requirements
Maintaining transaction safety and preventing fraud
Customer service, account management, and payment settlement

The platform commits that:

All data is transmitted using SSL/TLS encryption to keep it secure
Data is stored on secure servers that meet international standards, with multiple layers of protection
Except as required by law or with your consent, it will never be disclosed, sold, or provided to third parties

For details, see the KOCA Privacy Policy.

3. Verification Results and Notifications

After your information is reviewed and approved, you become a KOCA verified seller and can create listings.
If the information does not match or the review is not approved, you will be notified and can resubmit the correct documents as instructed.

4. Seller Obligations and Restrictions

You must guarantee that the information you provide is true and complete, and update it promptly if it changes.
Those who have not completed identity verification can only browse and buy, and may not create listings.
Children under 13 may not register a seller account.
A seller identity verification applicant must be at least 18 years old. The platform does not accept identity verification from minors; those under 18 should have a legal guardian complete verification using the guardian's own ID and bank account.
KOCA has the right to suspend or terminate your seller privileges for false verification information or violations of platform rules.
To protect transaction safety, all transactions must be conducted through this platform. Any form of private transaction (including but not limited to contacting through other messaging apps and bypassing the platform for payment) is a violation. The platform is not responsible for, and cannot provide any assistance or compensation for, any dispute, fraud, loss, or other risk arising from private transactions. If conduct violating this clause is verified, we will take action against the related accounts depending on the severity, and serious cases will result in permanent account deactivation and possibly further legal action. Please make sure all transactions are completed within this platform to protect your rights and transaction safety.

5. Seller Violations and Suspension Rules

To maintain trading order and protect the rights of both buyers and sellers, sellers must follow the rules below. In case of violation, the platform will take suspension or other necessary action depending on the severity.

1. Violations

While using the KOCA platform, a seller commits a violation if any of the following applies, including but not limited to:

Any attempt in listing descriptions, personal profiles, or Chat private messages to lead others into, or actually carrying out, off-platform transactions;
Selling unofficial fan-made products;
Listings that do not match the selected item;
Other conduct that KOCA determines violates these terms, affects transaction safety, or disrupts platform order.

2. Penalty Mechanism for Violations

First violation: 24-hour suspension;
Second violation: 7-day suspension;
Third violation: 30-day suspension.
Fourth violation or repeated refusal to correct: permanent suspension.

During a suspension, the seller's account will temporarily be unable to access selling features, create listings, or manage existing listings.

3. System Handling Rules After Suspension

While a seller's account is suspended, the platform system automatically takes the following measures:

Automatically delists all listings for sale;
Prohibits the seller from creating new listings or relisting existing ones;
Existing orders in progress remain as they are, and the seller can still ship or cancel orders as per the process;
The seller can continue to use non-selling features (such as buying, saving, and Chat), but may not carry out any selling or listing activity.

5. Rules for Frozen Seller Payment Accounts (Alert Accounts)

If the seller's payment account or seller account is placed in a frozen or alert status by a financial institution, payment service provider, or for other transaction safety reasons, so that funds cannot be received normally, then to maintain transaction safety and platform order, the platform will suspend that seller's selling privileges and automatically delist all listings for sale. Until the account is unfrozen, the seller may not create listings or sell. Only after the seller has had the account unfrozen, has proactively notified the platform, and the platform has confirmed it, will the seller account's selling privileges and listing feature be restored.

6. Other Matters

If a violation leads to a transaction dispute, the KOCA platform may handle related refunds, returns, and disputes as the circumstances require.
If the seller asks for the merch to be returned after shipping, for a reason other than the buyer failing to pick it up on time, the seller must bear the return shipping fee.
The platform also reserves the right to freeze wallet balances or restrict other account features to protect transaction safety.

7. Use of Google Vertex AI to Assist KYC

To improve the accuracy and security of identity verification (KYC), the platform may use Google Vertex AI artificial intelligence models and related technology to assist with identification and verification.

Google Vertex AI is an AI platform service provided by Google Cloud that can assist with identity verification decisions and risk assessment on the back end, but this does not mean the platform provides users' identity document data to any third party for any other purpose. All verification data is still securely stored and processed by the platform in accordance with the Personal Data Protection Act and related regulations.

Through this assisted mechanism, the platform can more effectively identify impersonation, forgery, or high-risk identity information, in line with Taiwan's regulatory requirements on platform risk management and identity verification. In this process, the platform commits to maintaining data encryption and access control standards and will not share KYC data in unauthorized ways; it will provide necessary cooperation as required by law or competent authorities. If the use of Vertex AI involves Google Cloud identity and access management, model access permissions and information protection will be managed under Google Cloud IAM controls and authorization mechanisms

8. Data Retention Period

We retain your data only for as long as needed to achieve the purpose of collection, complete transactions, and meet legal or necessary business requirements, and we store, delete, or anonymize it as required by relevant laws.

If your account has transaction records and all outstanding transactions, account balances, and other unresolved matters have been completed or properly handled, you can request to close the account, which stops login and public display. The platform will not delete all back-end data as a result; instead, under the Personal Data Protection Act and other applicable laws, or for necessary business such as transactions, payment and settlement, accounting vouchers, dispute handling, risk management, and audits, it will retain on a restricted basis the minimum necessary account identification, KYC, transaction, payment/settlement, and related records. Retained data is used only for the original purpose of collection, legal compliance, dispute handling, and audits, and is deleted or anonymized once the retention period expires or it is no longer needed.

If your account has no transaction records, and it is confirmed that there are no outstanding matters, disputes, legal obligations, or other necessary reasons to retain data, you can request deletion of the account and related personal data. Data that must still be retained by law or for necessary business is not deleted immediately when the account is deleted or closed, and is deleted or anonymized once the retention period expires or it is no longer needed.

Under Article 38 of the Business Accounting Act, accounting vouchers must be kept for at least five years after the annual closing procedures are completed, and accounting books and financial statements for at least ten years. Where anti-money-laundering record retention rules for third-party payment apply to a particular service or business, necessary service records are kept for at least five years, and necessary data such as customer identity, bank account, and proof of payment are kept until at least five years after the business relationship ends; where the law provides a longer retention period, that period applies. To prevent duplicate verification, the necessary identity information retained for a transaction account (such as ID document identification information, phone number, email, or bank account) may not be used again to register on this platform or for identity verification.

9. Policy Changes

KOCA reserves the right to modify this policy at any time, and changes take effect once announced on the platform. We recommend that you review this policy regularly to make sure you understand the latest rules.

10. Contact

If you have any questions about this identity verification policy, please contact the KOCA customer support team:

Email: [email protected]