I recently read [1] that one of the fastest company/startup to reach $1B in revenue is the Chinese mobile phone maker Xiaomi. This brand is #3 in global smartphone market [2]. All of this accomplished without having any big customer base in the US, Europe or Japan (traditionally large markets for tech). Personally, I find this amazing at so many levels. So yeah, I agree with you, China: "the largest everything".
[1] http://www.ogilvydo.com/topics/mobile/the-secrets-of-the-fas...
[2] http://www.scmp.com/business/china-business/article/1628622/...