Binance founder CZ revealed in a recent interview with The All-In Podcast that he left OKCoin in early 2015 due to cultural differences. After his departure, CZ collaborated with former colleagues to establish a Bitcoin exchange in Tokyo, aiming to address the market gap left by the Mt. Gox collapse. As CEO, he personally funded the team's salaries, foregoing his own pay, which he described as a crucial step leading to the eventual creation of Binance.