Convert Mantle Restaked Ether CMETH to Staked Frax USD SFRXUSD

Deployed on Ethereum layer 1 (L1) and governed by Mantle, mETH Protocol has, since late 2023, been providing users with access to $mETH, a value-accumulating receipt token that is highly composable across a range of DeFi applications on Mantle Network L2, offering exposure to additional yield-bearing opportunities. Users stake ETH with mETH Protocol and receive yield-bearing $mETH, and unstake $mETH to receive the underlying principal staked ETH and accumulated rewards. Since the inception of mETH Protocol, Mantle's mission has been to deliver the most user-friendly and rewarding $mETH experience. Thanks to ecosystem-wide adoption, $mETH users are able to trade on Mantle DEXs, earn yield by providing liquidity to $mETH liquidity pools, and generate yield within decentralized money markets. With $mETH's increasing adoption and composability within Mantle Ecosystem dApps, the protocol now ranks as the fourth largest ETH LSP by TVL. The introduction of $cmETH, a permissionless, composable liquid restaking token that unlocks restaking opportunities on Mantle, and $COOK, the protocol's upcoming governance token, mETH Protocol enters its next phase with further enhanced offerings. Through these features, mETH Protocol provides its users with capital efficiency, convenience, and a wide range of yield-bearing opportunities within Mantle Ecosystem dApps, all in a design that has been created to maximize security with non-custodial core smart contracts and off-chain services that enforce sanity bounds and risk limits.

Staked Frax USD (sfrxUSD) is the yielding stablecoin implemented as an ERC4626 token. sfrxUSD is fully redeemable for frxUSD at an increasing rate proportional to the yield mechanism (described below). sfrxUSD is not rebasing and can always be redeemed for the underlying frxUSD with no unstaking fee or price impact. sfrxUSD is unique in yielding design in that it targets a benchmark-rate strategy that alternates between the best of three governance-approved strategies: carry-trade, algorithmic market operations (AMOs), and the Interest on Reserve Balances/T-Bill (IORB) rate. This insures that sfrxUSD’s APY is the most competitive yield onchain.