# Approved Collateral Types

| Collateral Currency | Final Fee | UMIP                                                                           | Chains                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
| ------------------- | --------- | ------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ABT                 | 0.055     | [UMIP-178](https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-178.md) | [Ethereum](https://etherscan.io/address/0xee1DC6BCF1Ee967a350e9aC6CaaAA236109002ea)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
| USDB                | 250       | [UMIP-182](https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-182.md) | [Blast](https://blastscan.io/address/0x4300000000000000000000000000000000000003)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
| USDC                | 250       | [UMIP-18](https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-18.md)   | [Arbitrum](https://arbiscan.io/address/0xaf88d065e77c8cC2239327C5EDb3A432268e5831), [Arbitrum (USDC.e)](https://arbiscan.io/address/0xFF970A61A04b1cA14834A43f5dE4533eBDDB5CC8), [Base](https://basescan.org/address/0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913), [Core](https://scan.coredao.org/address/0xa4151B2B3e269645181dCcF2D426cE75fcbDeca9), [Ethereum](https://etherscan.io/token/0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48), [Optimism](https://optimistic.etherscan.io/address/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85), [Optimism (USDC.e)](https://optimistic.etherscan.io/address/0x7F5c764cBc14f9669B88837ca1490cCa17c31607), [Polygon](https://polygonscan.com/address/0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359), [Polygon (USDC.e)](https://polygonscan.com/address/0x2791bca1f2de4661ed88a30c99a7a9449aa84174) |
| WETH                | 0.055     | [UMIP-10](https://github.com/UMAprotocol/UMIPs/blob/master/UMIPs/umip-10.md)   | [Arbitrum](https://arbiscan.io/address/0x82aF49447D8a07e3bd95BD0d56f35241523fBab1), [Base](https://basescan.org/address/0x4200000000000000000000000000000000000006), [Blast](https://blastscan.io/address/0x4300000000000000000000000000000000000004), [Core](https://scan.coredao.org/address/0xeAB3aC417c4d6dF6b143346a46fEe1B847B50296), [Ethereum](https://etherscan.io/token/0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2),  [Optimism](https://optimistic.etherscan.io/address/0x4200000000000000000000000000000000000006), [Polygon](https://polygonscan.com/address/0x7ceb23fd6bc0add59e62ac25578270cff1b9f619),                                                                                                                                                                                                                   |
| WIP                 | 50        |                                                                                | [Story](https://www.storyscan.io/address/0x1514000000000000000000000000000000000000)                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |


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