Alumina Partners of Jamaica (ALPART) has its bauxite mining and alumina processing plant located at Nain, St. Elizabeth, in the south of Jamaica. The company was first established in the early 1960s under the union of three companies (Anaconda, Kaiser Aluminum and Reynolds Metals). Since then it has undergone several partnership and ownership changes, the last of which took place in 2017, resulting in full ownership of the company being transferred to Jiuquan Iron & Steel Company (JISCO).
The refinery was closed in 2009 in the wake of the Global Financial Crisis. However, in June 2017 the refinery reopened with its new owners, JISCO, at the helm. Alpart has a capacity of 1.65 million tonnes, which makes it the largest refinery in Jamaica. It can be further expanded to 2.0 million tonnes.
In September 2019, the operation at the refinery was suspended to undertake upgrading exercises.