# Use Native & Cross-chain Tokens

Smart Contract Dapps deployed in Acala EVM can directly use native and cross-chain assets such as DOT, ACA, aUSD, renBTC, etc. ERC-20 tokens deployed in EVM can also be made available at runtime level, to be listed in the DeX, or (by governance approval) to be used as fee tokens. Read more [here](https://wiki.acala.network/learn/acala-evm/acala-evm-composable-defi-stack/composable-defi-stack).

## ERC20 Contract Addresses

| Token Ticker | ER20 Address                                 |
| ------------ | -------------------------------------------- |
| ACA          | `0x0000000000000000000000000000000001000000` |
| AUSD         | `0x0000000000000000000000000000000001000001` |
| DOT          | `0x0000000000000000000000000000000001000002` |
| LDOT         | `0x0000000000000000000000000000000001000003` |
| XBTC         | `0x0000000000000000000000000000000001000004` |
| RENBTC       | `0x0000000000000000000000000000000001000005` |
| POLKABTC     | `0x0000000000000000000000000000000001000006` |
| PLM          | `0x0000000000000000000000000000000001000007` |
| PHA          | `0x0000000000000000000000000000000001000008` |
| HDT          | `0x0000000000000000000000000000000001000009` |
| KAR          | `0x0000000000000000000000000000000001000080` |
| KUSD         | `0x0000000000000000000000000000000001000081` |
| KSM          | `0x0000000000000000000000000000000001000082` |
| LKSM         | `0x0000000000000000000000000000000001000083` |
| SDN          | `0x0000000000000000000000000000000001000087` |
| Oracle       | `0x0000000000000000000000000000000000000801` |
| Schedule     | `0x0000000000000000000000000000000000000802` |

## Contract Methods

```javascript
// Returns the currencyId of the token.
function currencyId() public view returns (uint256);

// Returns the name of the token.
function name() public view returns (string memory);

// Returns the symbol of the token, usually a shorter version of the name.
function symbol() public view returns (string memory);

// Returns the number of decimals used to get its user representation.
function decimals() public view returns (uint8);

// Returns the amount of tokens in existence.
function totalSupply() public view returns (uint256);

// Returns the amount of tokens owned by `account`.
function balanceOf(address account) public view returns (uint256);

// Moves `amount` tokens from the caller's account to `recipient`.
// Returns a boolean value indicating whether the operation succeeded.
// Emits a {Transfer} event.
function transfer(address recipient, uint256 amount) public returns (bool);

// Returns the remaining number of tokens that `spender` will be allowed to spend on behalf of `owner` through {transferFrom}. 
// This is zero by default.
function allowance(address owner, address spender) public view returns (uint256);

// Sets `amount` as the allowance of `spender` over the caller's tokens.
// Returns a boolean value indicating whether the operation succeeded.
function approve(address spender, uint256 amount) public returns (bool);

// Moves `amount` tokens from `sender` to `recipient` using the allowance mechanism. `amount` is then deducted from the caller's allowance.
// Returns a boolean value indicating whether the operation succeeded.
function transferFrom(address sender, address recipient, uint256 amount) public returns (bool);

// Atomically increases the allowance granted to `spender` by the caller.
// This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.
// Emits an {Approval} event indicating the updated allowance.
function increaseAllowance(address spender, uint256 addedValue) public returns (bool);

// Atomically decreases the allowance granted to `spender` by the caller.
// This is an alternative to {approve} that can be used as a mitigation for problems described in {IERC20-approve}.
// Emits an {Approval} event indicating the updated allowance.
function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool);
```

More details and source code [here](https://github.com/AcalaNetwork/predeploy-contracts#erc20-contracts).