BIL - BHP Billiton Plc - BHP Billiton announces in24 Jun 2008
BIL
BIBLT                                                                           
BIL - BHP Billiton Plc - BHP Billiton announces increase in Iron Ore and        
Manganese Resources and reserves                                                
BHP Billiton Plc                                                                
Share code:         BIL                                                         
ISIN:               GB0000566504                                                
Date      24 June 2008                                                          
Number    22/08                                                                 
BHP BILLITON ANNOUNCES INCREASE IN IRON ORE AND MANGANESE RESOURCES AND RESERVES
BHP Billiton announced a 46 per cent increase in the Mineral Resource and a 23  
per cent increase in the Ore Reserve at Western Australia Iron Ore, an 11 per   
cent increase in the Mineral Resource and a 30 per cent increase in the Ore     
Reserve at Samarco Mineracao and an 82 per cent increase in the Mineral Resource
at Samancor Manganese. Work is in progress to incorporate the new Manganese     
Resource and estimate its impact on Manganese Reserves.                         
Western Australia Iron Ore Mineral Resource and Ore Reserve upgrade             
The Western Australia Iron Ore Mineral Resource increased by 3.7 billion wet    
metric tonnes (tonnes) to 11.7 billion tonnes, and the Ore Reserve increased by 
571 million wet tonnes to 3 billion tonnes, both in 100 per cent terms.   BHP   
Billiton`s attributable share of the Mineral Resource is 10.3 billion tonnes and
Ore Reserve is 2.6 billion tonnes.                                              
In 100 per cent terms, approximately 2.3 billion tonnes of Mineral Resource has 
been defined at the Jinayri and Marillana deposits, 1 billion tonnes has been   
defined at Area C and Yandi, and 442 million tonnes has been defined at the     
Eastern Pilbara mining hub.                                                     
The strategy to blend Yarrie (Mt Goldsworthy JV - Northern) mine production with
Newman and Mining Area C mine production has resulted in an increase in the     
Yarrie Mineral Resource to 171 million tonnes and in an increase in the Yarrie  
Ore Reserve to 24 million tonnes in 100 per cent terms.                         
In 100 per cent terms, the increase in Ore Reserves includes 180 million tonnes 
of Brockman ore at Packsaddle (Mining Area C), 41 million tonnes of Brockman ore
at Newman, 172 million tonnes of Brockman ore at Jimblebar and 178 million      
tonnes of Channel Iron Deposit ore at Yandi.                                    
Full details are provided in Figures 1, 2 and 3, and Tables 1 and 2 (refer      
weblink:                                                                        
http://www.bhpbilliton.com/bbContentRepository/docs/bhpBillitonIronOreAndMangane
seMapsAndTables.pdf).                                                           
Samarco Mineral Resource and Ore Reserve upgrade                                
In 100 per cent terms, the Samarco Mineral Resource increased by 327 million dry
tonnes to 3.3 billion tonnes and the Ore Reserve increased by 144 million dry   
tonnes to 624 million tonnes. BHP Billiton`s attributable share of the Mineral  
Resource and Ore Reserve is now approximately 1.7 billion tonnes and 312 million
tonnes respectively. Full details are provided in Tables 1 and 2 (refer weblink:
http://www.bhpbilliton.com/bbContentRepository/docs/bhpBillitonIronOreAndMangane
seMapsAndTables.pdf).                                                           
Samancor Manganese Mineral Resource changes                                     
Samancor Manganese Mineral Resource has increased by 213 million dry tonnes to  
473 million tonnes, in 100 per cent terms. The increase is mainly due to the    
inclusion of the Upper Body at Wessels Mine and the Top Cut at Mamatwan mine,   
along with the signing of the agreement(1) between Samancor Manganese and       
Ntsimbintle Mining Pty Ltd, a Black Economic Empowerment (BEE) party in the     
Kalahari. Consent has been given by the Minister to the Ntsimbintle transaction 
on a section 11 application (the vending of the prospecting rights into an      
existing mining right); Samancor Manganese Pty Ltd is still awaiting the letter 
of consent and approval.  BHP Billiton`s interest in the total Mineral Resource 
in South Africa has reduced from 60 per cent to 54.6 per cent as a result of the
transaction. BHP Billiton`s total attributable share of the Manganese Mineral   
Resources is now 267 million tonnes. Full details are provided in Table 3 (refer
weblink:http://www.bhpbilliton.com/bbContentRepository/docs/bhpBillitonIronOreAn
dManganeseMapsAndTables.pdf).                                                   
Competent Person`s Statement                                                    
The statement of Mineral Resources and Ore Reserves being presented has been    
produced in accordance with the Australasian Code for Reporting of Mineral      
Resources and Ore Reserves, December 2004 (the JORC Code). This information is  
based on information prepared by the relevant Competent Persons and relates to  
Mineral Resources and Ore Reserves forecast as at 30 June 2008.  Competent      
Persons are named in footnotes to Tables 1, 2 and 3 (refer weblink:             
http://www.bhpbilliton.com/bbContentRepository/docs/bhpBillitonIronOreAndMangane
seMapsAndTables.pdf).                                                           
All Competent Persons are full time employees of BHP Billiton (unless otherwise 
stated), have sufficient experience relevant to the style of mineralisation and 
type of deposit under consideration and to the activity they are undertaking to 
qualify as a Competent Person as defined in the JORC Code.  All Competent       
Persons are members of either the Australian Institute of Mining & Metallurgy   
(AusIMM) or the Australian Institute of Geoscientists (AIG) or a Recognised     
Overseas Professional Organisation (ROPO).  The Competent Persons consent to the
inclusion in this report of the matters based on their information in the form  
and context in which it appears.                                                
(1) Refer note 4 to table 3 (refer weblink:                                     
http://www.bhpbilliton.com/bbContentRepository/docs/bhpBillitonIronOreAndMangane
seMapsAndTables.pdf).                                                           
Further information on BHP Billiton can be found on our Internet site:          
www.bhpbilliton.com                                                             
Australia                                                                       
Samantha Evans, Media Relations                                                 
Tel: +61 3 9609 2898  Mobile: +61 400 693 915                                   
email: Samantha.Evans@bhpbilliton.com                                           
Leng Lau, Investor Relations                                                    
Tel: +61 3 9609 4202  Mobile: +61 403 533 706                                   
email: Leng.Y.Lau@bhpbilliton.com                                               
United Kingdom & South Africa                                                   
Andre Liebenberg, Investor Relations                                            
Tel: +44 20 7802 4131  Mobile: +44 7920 236 974                                 
email: Andre.Liebenberg@bhpbilliton.com                                         
Illtud Harri, Media Relations                                                   
Tel: +44 20 7802 4195  Mobile: +44 7920 237 246                                 
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                                         
IMPORTANT NOTICES                                                               
Certain statements in this news release are forward-looking statements          
(including statements regarding the identification of additional mineral        
Reserves and Resources) that are based on current expectations and beliefs.     
These expectations and beliefs may or may not prove to be correct and, by their 
nature, are subject to a number of known and unknown risks and uncertainties    
that could cause actual results, performance and achievements to differ         
materially.                                                                     
Cautionary Note to US Investors - The US Securities and Exchange Commission     
("SEC") generally permits mining companies in their filings with the SEC to     
disclose only those mineral deposits that the company can economically and      
legally extract.  Certain terms in this presentation, including "resource",     
"indicated resource", "inferred resource" and "measured resource", would not    
generally be permitted in an SEC filing.  The material denoted by such terms is 
not proven or probable Reserves as such terms are used in the SEC`s Industry    
Guide 7, and there can be no assurance that BHP Billiton will be able to convert
such material to proven or probable Reserves or extract such material           
economically.  Although the iron ore Reserves presented in this news release    
have been calculated in accordance with Industry Guide 7, BHP Billiton urges    
investors to refer to its Annual Report on Form 20-F for the fiscal year ended  
30 June, 2007 for its most recent statements of its other mineral Reserves      
calculated in accordance with Industry Guide 7.                                 
Information Relating to the US Offer for Rio Tinto plc                          
BHP Billiton plans to register the offer and sale of securities it would issue  
to Rio Tinto plc US shareholders and Rio Tinto plc ADS holders by filing with   
the SEC a Registration Statement (the "Registration Statement"), which will     
contain a prospectus (the "Prospectus"), as well as other relevant materials.   
No such materials have yet been filed.  This communication is not a substitute  
for any Registration Statement or Prospectus that BHP Billiton may file with    
the SEC.                                                                        
U.S. INVESTORS AND U.S. HOLDERS OF RIO TINTO PLC SECURITIES AND ALL HOLDERS OF  
RIO TINTO PLC ADSs ARE URGED TO READ ANY REGISTRATION STATEMENT, PROSPECTUS AND 
ANY OTHER DOCUMENTS MADE AVAILABLE TO THEM AND/OR FILED WITH THE SEC REGARDING  
THE POTENTIAL TRANSACTION, AS WELL AS ANY AMENDMENTS AND SUPPLEMENTS TO THOSE   
DOCUMENTS, WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT       
INFORMATION.                                                                    
Investors and security holders will be able to obtain a free copy of the        
Registration Statement and the Prospectus as well as other relevant documents   
filed with the SEC at the SEC`s website (http://www.sec.gov), once such         
documents are filed with the SEC.  Copies of such documents may also be obtained
from BHP Billiton without charge, once they are filed with the SEC.             
Information for US Holders of Rio Tinto Limited Shares                          
BHP Billiton Limited is not required to, and does not plan to, prepare and file 
with the SEC a registration statement in respect of the Rio Tinto Limited Offer.
Accordingly, Rio Tinto Limited shareholders should carefully consider the       
following:                                                                      
The Rio Tinto Limited Offer will be an exchange offer made for the securities of
a foreign company. Such offer is subject to disclosure requirements of a foreign
country that are different from those of the United States. Financial statements
included in the document will be prepared in accordance with foreign accounting 
standards that may not be comparable to the financial statements of United      
States companies.                                                               
Information Relating to the US Offer for Rio Tinto plc and the Rio Tinto Limited
Offer for Rio Tinto shareholders located in the US.                             
It may be difficult for you to enforce your rights and any claim you may have   
arising under the U.S. federal securities laws, since the issuers are located in
a foreign country, and some or all of their officers and directors may be       
residents of foreign countries. You may not be able to sue a foreign company or 
its officers or directors in a foreign court for violations of the U.S.         
securities laws. It may be difficult to compel a foreign company and its        
affiliates to subject themselves to a U.S. court`s judgment.                    
You should be aware that BHP Billiton may purchase securities of either Rio     
Tinto plc or Rio Tinto Limited otherwise than under the exchange offer, such as 
in open market or privately negotiated purchases.                               
END                                                                             
Date: 24/06/2008 10:08:01 Produced by the JSE SENS Department.                  
The SENS service is an information dissemination service administered by the    
JSE Limited (`JSE`). The JSE does not, whether expressly, tacitly or            
implicitly, represent, warrant or in any way guarantee the truth, accuracy or   
completeness of the information published on SENS. The JSE, their officers,     
employees and agents accept no liability for (or in respect of) any direct,     
indirect, incidental or consequential loss or damage of any kind or nature,     
howsoever arising, from the use of SENS or the use of, or reliance on,          
information disseminated through SENS.