Last time I checked exports were around 14% of Chinese emissions. Significant but domestic emissions are the majority. Repeating the proxy emission meme is quite disrespectful if you consider this context. i.e. you are saying that although the other 86% are domestic, their primary purpose is to support the export industry and therefore should be counted as export emissions as well. It's almost the same as saying Chinese citizens only exist for the sake of first world countries.