Market-maker fees apply when you add liquidity to COVESTING order book by placing a passive limit order below the mid-spread for buy orders and above the mid-spread for sell orders.
Market-taker fees apply when you execute trades by matching existing orders in the order book.
Liquidity aggregation fees - additional third party exchange fees are already included in these rates. All trading fees will be shown to the user in the order form before placing such an order.