# Shared Addresses

These Contracts are used in other parts of the Protocol. To replace them, a Module has to be proposed in the Nexus contract.

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{% tab title="Ethereum Mainnet" %}

<table data-header-hidden><thead><tr><th width="246">Contract</th><th>Address</th></tr></thead><tbody><tr><td>Contract</td><td>Address</td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts%2Fnexus%2FNexus.sol">Nexus</a></td><td><a href="https://etherscan.io/address/0xAFcE80b19A8cE13DEc0739a1aaB7A028d6845Eb3">0xAFcE80b19A8cE13DEc0739a1aaB7A028d6845Eb3</a></td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts/masset/liquidator/Unliquidator.sol">Unliquidator</a></td><td><a href="https://etherscan.io/address/0xC643B9D66C68d06EA844251a441A0a1211E60656#code">0xC643B9D66C68d06EA844251a441A0a1211E60656</a></td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts%2Fmasset%2Fliquidator%2FLiquidator.sol">Liquidator</a> (deprecated)</td><td><a href="https://etherscan.io/address/0xe595d67181d701a5356e010d9a58eb9a341f1dbd">0xe595D67181D701A5356e010D9a58EB9A341f1DbD</a></td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts%2Fsavings%2FSavingsManager.sol">Savings Manager</a></td><td><a href="https://etherscan.io/address/0xBC3B550E0349D74bF5148D86114A48C3B4Aa856F">0xBC3B550E0349D74bF5148D86114A48C3B4Aa856F</a></td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts%2Frewards%2FBoostDirectorV2.sol">Boost Director</a></td><td><a href="https://etherscan.io/address/0xba05fd2f20ae15b0d3f20ddc6870feca6acd3592">0xBa05FD2f20AE15B0D3f20DDc6870FeCa6ACd3592</a></td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts%2Fbuy-and-make%2FRevenueRecipient.sol">Revenue Recipient (Buy &#x26; Make)</a></td><td><a href="https://etherscan.io/address/0xA7824292efDee1177a1C1BED0649cfdD6114fed5">0xA7824292efDee1177a1C1BED0649cfdD6114fed5</a></td></tr><tr><td><a href="https://github.com/mstable/mStable-contracts/blob/master/contracts%2Fbuy-and-make%2FCollector.sol">Collector (Buy &#x26; Make)</a></td><td><a href="https://etherscan.io/address/0x3F63e5bbB53e46F8B21F67C25Bf2dd78BC6C0e43">0x3F63e5bbB53e46F8B21F67C25Bf2dd78BC6C0e43</a></td></tr></tbody></table>
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{% tab title="Ropsten Testnet" %}

| Contract             | Address                                      |
| -------------------- | -------------------------------------------- |
| Nexus                | 0xeD04Cd19f50F893792357eA53A549E23Baf3F6cB   |
| Emissions Controller | *0x973E0B9E1b0bf43B1B8dDf9D6A2f817138cf3C10* |
| RevenueBuyBack       | 0x51E014D7862d4Ba8A14a778dA59890264458F5E4   |
| {% endtab %}         |                                              |
| {% endtabs %}        |                                              |