Noranda Alumina Continues the Expansion of Its Gramercy Refinery

Gramercy, LA – December 20, 2018 – Noranda Alumina continues to expand the chemical
grade alumina (CGA) capabilities of its Gramercy refinery with its commissioning of a new
hydrate dryer and dense phase pneumatic conveying system as the final phase of a CGA
expansion project launched in late 2017. The dryer and conveying system are state of the art
technologies for the Gramercy refinery, which now has the ability to produce up to 800,000
metric tons of CGA annually.

Construction on this $20 million capital project began in November 2017, reaching its first
milestone in April of 2018 with installation and commercial operation of a 65 ton per hour
hydrate filter. Installation of the new hydrate dryer and pneumatic conveying system were
completed in early December, with commercial operations starting this week.

“This new equipment, along with a new hydrate reclamation system, significantly increases
Noranda Alumina’s CGA capacity while improving our operational flexibility and efficiency,” said
John Habisreitinger, the company’s Executive Vice President. “The completion of this project
enables Noranda Alumina to increase CGA supply without sacrificing total plant takeout,”
Habisreitinger said. “It will better assure customer supply reliability, further build on our supply
leadership position in North America, and support additional market growth.”

About Noranda: Noranda Bauxite and Noranda Alumina are the bauxite mining and alumina
refinery operations of New Day Aluminum LLC. Noranda Bauxite, located in St. Ann, Jamaica,
mines and ships bauxite for metallurgical and non-metallurgical applications globally. Noranda
Alumina, located in Gramercy, Louisiana, produces smelter grade alumina for the production of
aluminum as well as chemical grade alumina which is used in a wide array of industrial
applications. Noranda Bauxite and Alumina, as well as ARC Fused Alumina S.A.R.L., a white
fused alumina business in La Bâthie, France, are principally owned by the partners of DADA
Holdings. DADA is an investment and management company based in Fort Lauderdale, Florida
that makes control investments and manages companies in basic industries, such as metals and
mining.

Contact: John Habisreitinger
john.habisreitinger@norandaalumina.com