Copper Technologies, a London-based crypto custodian company, has withdrawn its request to register with the UK financial regulator and instead focused on overseas markets. The decision follows the appointment of Amar Kuchinad, the company's new chief executive, who will seek licences or self-regulatory approvals in places such as Switzerland, Hong Kong and Abu Dhabi. Copper had planned to expand to the US after Mr. Trump's election to apply for custody or money transfer licences.