Alcoa Worldwide Alumina Refining Capacity
As of September 30, 2014

Country Facility Owners Nameplate
Capacity1
Alcoa
Consolidated
Capacity2
(% Of Ownership) (000 MTPY) (000 MTPY)
Australia
Kwinana Alcoa of Australia Limited (AofA)3 (100%) 2,190 2,190
Pinjarra AofA (100%) 4,234 4,234
Wagerup AofA (100%) 2,555 2,555
Brazil
Poços de Caldas Alcoa Alumínio S.A. (Alumínio)4 (100%) 3905 390
São Luís
(Alumar)
Alcoa World Alumina (AWA) Brasil Ltda.3 (39%)
Rio Tinto Alcan Inc.6 (10%)
Alumínio (15%)
BHP Billiton6 (36%)
3,500  1,890
Jamaica
Jamalco Alcoa Minerals of Jamaica, L.L.C.3 (55%)
Clarendon Alumina Production Ltd.7 (45%)
1,478 8418
Spain
San Ciprián Alúmina Española, S.A.3 (100%) 1,5009 1,500
Suriname
Suralco Suriname Aluminum Company, LLC (Suralco)3 (55%)
N.V. Alcoa Minerals of Suriname (AMS)10 (45%)
2,20711 2,207
United States
Point Comfort, TX AWA LLC3 (100%) 2,30512 2,305
Total 20,359 18,112

1 Nameplate Capacity is an estimate based on design capacity and normal operating efficiencies and does not necessarily represent maximum possible production.
2 The figures in this column reflect Alcoa’s share of production from these facilities. For facilities wholly-owned by Alcoa World Alumina and Chemicals (AWAC) entities, Alcoa takes 100% of the production.
3 This entity is part of the AWAC group of companies and is owned 60% by Alcoa and 40% by Alumina Limited.
4 This entity is owned 100% by Alcoa.
5 As a result of the decision to fully curtail the Poços de Caldas smelter, management initiated a reduction in alumina production at this refinery. The capacity that is operating at this refinery is producing at an approximately 45% output level.
6 The named company or an affiliate holds this interest.
7 Clarendon Alumina Production Ltd. is wholly-owned by the Government of Jamaica.
8 On October 15, 2014, Alcoa signed a definitive agreement to sell AWAC's 55% ownership stake in the Jamalco bauxite mining and alumina refining joint venture to Noble Group Ltd. The sale is subject to customary regulatory approvals and is expected to close by the end of 2014.
9 The capacity that is operating at this refinery is producing at an approximately 95% output level.
10 AWA LLC owns 100% of AMS. AWA LLC is part of the AWAC group of companies and is owned 60% by Alcoa and 40% by Alumina Limited.
11 The Suralco alumina refinery has approximately 876,000 mtpy of idle capacity. Additionally, the capacity that is operating at this refinery is producing at an approximately 85% output level.
12 The Point Comfort alumina refinery has approximately 340,000 mtpy of idle capacity.

As of September 30, 2014, Alcoa had approximately 1,216,000 mtpy of idle capacity against total Alcoa Consolidated Capacity of 18,112,000 mtpy.