The fee for bridging SURGE from Hive Engine (HE) to Base is 2%. This covers the cross-chain oracle operation via @surge.oracle.

To move SURGE from HE to Base:

1. Send your heSURGE tokens to the @surge.oracle account on Hive Engine.
2. In the transaction memo, include your Base wallet address (e.g., 0x...).

The oracle will wrap it to native SURGE on Base (contract: 0x7234b7e90a64f397047faf9ae8b1903b4467c275). Process takes ~minutes; track via Basescan or Hive-Engine explorer.

Source: @leostrategy post, Oct 14, 2025. For reverse (Base to HE), interact with the Base contract's ConvertTokenWithTransfer function on Basescan.