Position Tier (Leverage， Position Value And Maintenance Margin Rate)

Initial margin rate = 1/leverage

Maintenance Margin = Position Value * Maintenance Margin Rate

Notes:

BKEX will take the following measures to maintain market stability according to market fluctuations and industry development, including but not limited to:

1. Adjust the maximum available leverage.

2. Adjust the position limit of each level.

3. Adjust the maintenance margin ratio of each level.