# FireEP **Auto-Compounding Elemental Particles**\ EP deposited in this vault is staked in the EP contract to generate rewards from new FBX emissions. The contract regularly claims FBX rewards, burn them for new EP and reinvests in the vault, **compounding the interests**. The contract takes a 3.0% fee on FBX rewards to mint and permanently lock new fireEP, thus reducing FBX's maximum supply over time. Depositors receive fireEP tokens representing the value of the deposit. They are required to withdraw and can be used in other DeFi protocols. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://fbx.gitbook.io/docs/vaults/fireep.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.