Earlier quoted context omitted.
Anyone can learn how to say 你好are you? But seriously, getting basic taxi cab mandarin down in 6 months is pretty easy. Heck, when I did it it was much harder since real beijingers back then had thick 儿 accents. You definitely don't need 大山-level mandarin to do business in china these days.
Yeah but it's still not honest to say you don't need to learn Chinese at all. I would say that you will need atleast 6 months to be able to live normally, 12 months to get respect in business meetings, 3-4 years to be understood and make it a comp. advantage.And I'm not talking about 上海。
Plenty of foreigners work in China having much less than 6 months of Chinese. Most of them weren't even at my level. They still got by. Business meetings held with foreigners are usually in English anyways, it is only the old guard (Xi's generation) that can't English very well. And those people aren't so common in tech.