[3][4] In October 2018, BK Global Consortium signed a deal to buy a majority share of BTC Holding Co. which is Bithumb's largest investor.

[5] On January 22, 2019, OTC-listed holding company Blockchain Industries signed a binding letter of intent to merge with Bithumb on or before March 1, 2019.

The company blamed the loss on the sharp decline in the price of cryptocurrencies and reduced trading volume.

[7] In June 2017, hackers stole user information from a Bithumb employee's personal computer.

[11] In January 2019, 30 out of 340 total Bithumb employees were laid off in response to declining trading volume and profits in 2018.