How do anti-dumping duties affect China's MIBK import market structure?

How do anti-dumping duties affect China's MIBK import market structure?
China's anti-dumping measures on MIBK from South Korea, Japan and South Africa remain a structural feature of the import market. The ongoing sunset review, covering the 2022 dumping period, maintains duties ranging from 15.9% for Sasol South Africa to as high as 190.4% for other Japanese companies. Major suppliers like Kumho P&B Chemicals face 32.3%, while Mitsui and Mitsubishi are subject to 45.0% and 47.8% respectively. These duties have historically protected domestic producers but also mean China cannot easily source from these traditional low-cost origins. The review outcome will be critical for import availability and pricing, especially with the domestic supply gap that emerged after the LCY shutdown.