APIA, Samoa, Sept. 19, 2025 /PRNewswire/ — Phemex, the most efficient crypto exchange, announced the launch of On-chain Earn, a new staking service that integrates proof-of-stake rewards directly into the platform. The introduction of On-chain Earn marks a significant enhancement to Phemex Earn, its wealth management product, providing users with a streamlined mechanism to generate competitive yield on assets such as ETH and SOL without navigating external wallets or decentralized applications.