London BTC Company Ltd (LSE:BTC, OTCQB:VINZF) announced it has set up two wholly owned subsidiaries in Australia and Nevada as it looks to add gold exploration optionality alongside its bitcoin treasury strategy. The London-listed group said Tethered Gold Pty Ltd and Tethered Gold LLC will provide the corporate structure to assess gold exploration, mineral claim staking and early-stage project development opportunities in two of the world's busiest gold jurisdictions.