Bhutan has sold 70% of its bitcoin in 18 months. It may have stopped BTC mining too.
Summary
Bhutan has significantly reduced its bitcoin reserves, dropping from 13,000 BTC to 3,954 BTC over the past 18 months, representing a 70% decrease. Managed by the sovereign wealth fund Druk Holding and Investments, the nation's mining experiment appears to have stalled, as data indicates no significant mining inflows for over a year. The shift away from mining may be attributed to compressed profit margins caused by high network difficulty and the falling profitability of small-scale operations compared to selling electricity directly to India.
(Source:CoinDesk)