In my experience as a long-term trader dealing with various regulated brokers, the documentation required for an initial withdrawal is a key concern, especially when working with firms like Cathay Futures that operate under the oversight of the Taipei Exchange in Taiwan. While the context doesn't explicitly list every required document for Cathay Futures, I have learned that regulated brokers like this typically adhere to financial regulations mandating identity verification and anti-money laundering protocols. Based on these standards and regulatory expectations, I would expect Cathay Futures to require documents such as a valid government-issued photo ID (like a passport or national ID card), a proof of address (such as a recent utility bill or bank statement), and possibly confirmation of your bank account details to ensure that the withdrawal can only be sent to an account in your name. This set of documents is standard practice for withdrawals at reputable, regulated firms, particularly in jurisdictions like Taiwan. Given that the broker is regulated and provides margin trading on major exchanges, I would proceed cautiously and ensure all my documents are clear, up to date, and consistent with the information I registered. It’s wise to directly contact their customer service via the official email or phone number provided on their website for any updates to the policy or for confirmation of specifics, as requirements can change over time and depending on the nature of your account. By taking these steps, I aim to avoid unnecessary delays and ensure full compliance with both broker and regulatory expectations.