# Governance

### <mark style="color:orange;">1. Listing New Supported Tokens</mark>

Unlike AMM-based DEXs, **token and trading pair listings in Optimex Swap are permissioned**, as they require support from at least one **Professional Market Maker (PMM)**. New listings must be approved through a **consensus between a PMM, a Solver, and the protocol administrator**, who records the information on **Optimex’s L2**.

### <mark style="color:orange;">2. Protocol Fees</mark>

Users pay a **trading fee** when swapping tokens on **Optimex Swap**, which serves as the protocol's main revenue source. Revenue is allocated to compensate the **Validator Network** and fund **research and development**.

Since **Optimex** focuses on **BTC trading**, all pairs involve BTC and an asset on a **smart contract-enabled blockchain**, leveraging its expressivity for **fee collection**:

* **BTC → Other Asset:** The fee is deducted from the PMM’s payment to the user.
* **Other Asset → BTC:** The fee is collected via the **Optimex Vault smart contract** before final settlement.

#### **Fee Structure**

* **0.02%** for **BTC-WBTC** (or other wrapped BTC pairs).
* **0.1%** for all other pairs.


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