SMART CONTRACTS

STBT Contracts

Contract	Addresss
Token Contract	0x530824da86689c9c17cdc2871ff29b058345b44a
Minter	0xca241823d4Bfe8b29610709Db617407FbC9AE02b

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XAUm Contracts

Ethereum

Contract	Addresss
MTokenMain	0x2103E845C5E135493Bb6c2A4f0B8651956eA8682
MTokenMessager	0x24Ce2A00EB05b33B206b4057598F97dDc3028C7e
BullionNFT	0x67dcC9C33363Cc0e650738528Fe4Fef1d658C7EE
FallbackReserveFeed	0xB2624f7e72788F1EBf1C7877c646732957bbf72E

BNB Chain

Contract	Addresss
MTokenSide	0x23AE4fd8E7844cdBc97775496eBd0E8248656028
MTokenMessager	0x71294BE2f69443D7b730b61FfEd5c3b8FB16eaD5
BullionNFT	0xe310Db5FF835127F4ACd858A4e3eF96C1770298b

Contract Description

Contract	Description
ERC-20 Contract	The main contract that mints and redeems the fungible tokens. It cooperates with the messaging contract to send tokens and mint budgets across different chains. It’s an upgradable contract. Its privileged operations are carried out in a time-locked way.
ERC-721 Contract	The main contract that mints and redeems the non-fungible tokens. During the minting and redeeming process, it cooperates with the ERC-20 contract to lock and unlock corresponding fungible tokens. It does not support cross-chain transfers. It’s an upgradable contract. Its privileged operations are carried out in a time-locked way.
Messaging Contract	The adaptor contract that connects XAUm to cross-chain protocols. Users call this contract when sending tokens and mint budgets to remote chains. Currently, this contract uses Chainlink's CCIP.