Plc - BHP Billiton Approves Worsley Alumina Effici5 May 2008
BIL
 BIBLT                                                                           
Plc - BHP Billiton Approves Worsley Alumina Efficiency & Growth Project         
BHP Billiton Plc                                                                
Share code: BIL                                                                 
ISIN: GB0000566504                                                              
BHP BILLITON APPROVES WORSLEY ALUMINA EFFICIENCY & GROWTH PROJECT               
BHP Billiton today announced approval for the Efficiency & Growth expansion     
project at Worsley Alumina in Western Australia for an estimated capital        
investment of US$1.9 billion (BHP Billiton`s 86 per cent share). This           
includes approximately US$70 million of sustaining capital.                     
The expansion project will lift capacity of the Worsley refinery from 3.5       
million tonnes per annum (Mtpa) of alumina to 4.6 Mtpa (100 per cent            
capacity) through expanded mining operations, additional refinery capacity      
and upgraded port facilities.                                                   
The construction phase will start immediately and first production is           
expected in the first half of calendar year 2011.                               
BHP Billiton Aluminium President Jon Dudas said, "Worsley is one of the         
largest, lowest cost and most efficient alumina refineries in the world. This   
decision to invest in further production capacity underlines our confidence     
in the future of the alumina market. It also reflects our confidence in         
Worsley Alumina`s ability to continue its excellent track record of             
production growth".                                                             
Worsley Alumina is a Joint Venture partnership between BHP Billiton (86 per     
cent), Japan Alumina Associates (Australia) (10 per cent) and Sojitz Alumina    
(4 per cent).                                                                   
Further information on BHP Billiton can be found on our Internet site:          
www.bhpbilliton.com                                                             
Australia                             United Kingdom & South Africa             
Samantha Evans, Media Relations       Andre Liebenberg, Investor                
Tel: +61 3 9609 2898                  Relations                                 
Mobile: +61 400 693 915               Tel: +44 20 7802 4131                     
Email:                                Mobile: +44 7920 236 974                  
Samantha.Evans@bhpbilliton.com        Email:                                    
Andre.Liebenberg@bhpbilliton.com                                                
Leng Lau, Investor Relations          Illtud Harri, Media Relations             
Tel: +61 3 9609 4202                  Tel: +44 20 7802 4195                     
Mobile: +61 403 533 706               Mobile: +44 7920 237 246                  
Email: Leng.Y.Lau@bhpbilliton.com     Email:                                    
                                     Illtud.Harri@bhpbilliton.com               
United States                                                                   
Tracey Whitehead, Investor & Media Relations                                    
Tel: US +1 713 599 6100 or                                                      
UK +44 20 7802 4031                                                             
Mobile: +44 7917 648 093                                                        
Email: Tracey.Whitehead@bhpbilliton.com                                         
Date: 05/05/2008 07:45:02 Produced by the JSE SENS Department.                  
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