One thing that is not mentioned in the article is the massive amount of soy beans that China imports each year (approximately 90 mmt in 2019) to produce feedsto

One thing that is not mentioned in the article is the massive amount of soy beans that China imports each year (approximately 90 mmt in 2019) to produce feedstock for their hog herds and acquacultures. Most of the soy beans are imported from the US (pre trade war), Brazil and Argentina.