Chinese tariffs on sugar

So reports Reuters
http://www.reuters.com/article/us-china-sugar-imports-idUSKBN18I060
and tutor2u
https://www.tutor2u.net/economics/blog/china-defends-higher-import-tariffs-on-sugar?utm_medium=email&utm_campaign=Economics%20daily%20digest%20Fri%2026th%20May%202017&utm_content=Economics%20daily%20digest%20Fri%2026th%20May%202017+CID_b6f8f93619aedfd92d058657aefdd63d&utm_source=CampMonitor&utm_term=China%20defends%20higher%20import%20tariffs%20on%20sugar%20Brazilian%20sugar%20exports%20are%20most%20likely%20to%20be%20affected%20by%20this%20Chinese%20tariff%20on%20sugar%20imports%20The%20usual%20demand-supply%20analysis%20framework%20and%20welfare%20issues%20can%20be%20applied%20to%20this%20decision