Common language

I met two people who work in a famous company in Japan. The company was noticed because they decided to use English as a common language. I asked them "How do you think about the situation?". They said that speaking business English is very difficult. They have to write their business reports in English speak in English in meetings. Every week their CEO sends an English e-mail to all staff. Every one in the company must learn English. It was especially cruel to the officers of the company. If they couldn't speak English after two years, they will get fired.