Alumina prices continued to climb in recent weeks, hitting an over two-year high in early September, due to supply concerns. Alumina traded at USD 365 per metric ton on 10 September, which was up 21.6% from the same day in the prior month. Moreover, the price was up 32.6% from the same day last year and was 23.1% higher on a year-to-date basis. A fire that erupted at the Jamalco alumina refinery in Jamaica in late August sparked worries over supply and sent prices flying in turn. On top of this, China’s recent announcement of tighter production controls in the Guangxi region—a key hub for alumina and aluminium refining—in a bid to reduce energy consumption, further supported prices.