# Announcement on the third halving of MDX and the adjustment of allocation of its transaction fee Dear users, MDEX gives back the participants maximum incentive under the help of a dual-mining mechanism comprised of liquidity mining and transaction mining. It realizes a self-driven ecological closed loop of value capture through buyback and destruction with a transaction fee. On the occasion of safe and smooth operation for nearly a year, MDX halved for the third time at 12:30 (UTC) on 2nd December 2021. Now, the sum of output on HECO and BSC is reduced from the previous 40 MDX to 20 MDX per block. Block height for halve on HECO is 10517460 and 13130005 for BSC Meanwhile, to achieve sustainability, MDEX optimized the allocation of its transaction fee after a proposal with a proposal NO. 211125001 was initiated by the MDEX team and passed the referendum thru DAO. Under the proposal, the adjustment of allocation of transaction fee (0.3% of the transaction volume) is as follows: All liquidity providers (Include liquidity pair formed by tokens that are not whitelisted): 0.2%. Repurchase & destruction: 0.07%. Boardroom reward: 0.03%. MDEX will usher in new opportunities and will continue to work with more partners to promote ecological prosperity and development to benefit the holders of MDX, the future is bound to be better. Thank you for your support of MDEX! MDEX team 02 Dec 2021 --- # 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://mdexdoc.gitbook.io/doc/announcement/announcement-on-the-third-halving-of-mdx-and-the-adjustment-of-allocation-of-its-transaction-fee.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.