The security guarantee for BiyaPay stock trading is as follows:

1. 100% Sell to US and Hong Kong SAR Stock Exchange: BiyaPay US Hong Kong Stock Sell Demo Link: https://cn.biyapay.com/announcement/5-post-US-%26-HK-Stock-Notification/2-post-Why-U.S.-and?page=1&type=5&index=5

2. Securities Qualification: BiyaPay is a US Registered Investment Advisor (RIA) and New Zealand Registered Financial Services Provider (FSP).

3. The sustainability of the business model: BiyaPay's business model is healthy and regulated, with core profits coming from a 1% stock transaction fee and US/Hong Kong stock transaction fee for fiat currency transactions. With debt risk, the platform ensures long-term development with a stable profit model.

4. Long-term stable operation: BiyaPay has been operating steadily in the financial industry for five years, accumulating rich experience and professional knowledge. Long-term market operation has proven the stability and reliability of the company.