This is true but their biggest food trading partner is actually Brazil (second biggest is US though...) which would decline to impose sanctions on China. This is because Brazils economy is highly reliant not just on food exports to China but also iron ore.
They have already declined to impose sanctions on Russia because of their reliance on Russia for raw materials and fertilizer.
Any shipments may end up being blocked by Japan because they would need to go between Japan and Taiwan to get to China. During the conflict it will be delayed and risky.
Lets just hope none of this ever happens. I live in Taiwan at the moment. I just want to enjoy life with my family.
They have already declined to impose sanctions on Russia because of their reliance on Russia for raw materials and fertilizer.