BHP Billiton Limited

Alumina Ltd. (ASX:AWC) Chief Executive John Bevan said Thursday on the UBS Australian Resources Conference that the current system of pricing alumina does not represent industry fundamentals and developments in the Chinese industry will drive structural change in the alumina market.

D'Aguilar Gold Limited (ASX:DGR) hereby notifies shareholders of the early termination of its current Non-Renounceable Rights Issue (Current Rights Issue). All shareholders who have participated in the Current Rights Issue to date will have their application monies refunded in full.

The following announcement is made by Oil Basins Limited (ASX:OBL) so as to keep the market fully informed. As mentioned in the OBL March 2010 Quarterly Report released to the ASX on 30 April 2010, the Company is pleased to advise that as a result of the recent Vic/P41 Joint Venture Meeting, OBL was appointed agent on behalf of the Vic/P41 joint venture for Managing the Farm-Out.

Dynasty Metals Australia Limited (ASX:DMA) is pleased to provide a Quarterly Activities Report for the period ending 31 March 2010.

Bandanna Energy Limited (ASX:BND) is pleased to announce a drilling program has resumed at its Joint Venture coal tenements in the Galilee Basin in Central Queensland.

D'Aguilar Gold Limited (ASX:DGR) are pleased to announce that the company has entered an agreement for its subsidiary Navaho Gold Pty Ltd to acquire Mingoola Gold Pty Ltd in exchange for 7 million shares and 7 million options in Navaho and D'Aguilar's commitment to arrange initial funding of A$610,000 seed capital. D'Aguilar will continue to hold a majority equity stake in Navaho Gold, and assist with its corporate and project development plans. D'Aguilar currently holds 9,623,600 shares in Navaho.

The Australian shares opened higher on Tuesday despite most Asian markets dropped in early trade. Miners were boosted by stronger copper and gold prices. Most Asian markets yesterday rose as sentiment was improved after prospects of a European Union and the International Monetary Fund bailout for Greece. The Australian sharemarket was closed on Monday for a public holiday. In economic news today, the Australian Bureau of Statistics is due to unveil producer price indices (PPI) for March quarter. The National Australia Bank releases its business confidence survey for the March quarter.

The Australian shares Wednesday opened stronger with 0.6 per cent in early trade. The market rose on hope of an overall corporate earnings recovery and on higher commodities prices. The Australian dollar was also up this morning as investors' risk appetite increased. Asian stock markets mostly rebounded yesterday. China's Shanghai Composite closed flat after a massive drop in previous trading session, with property shares remained weak.

Wall Street Thursday closed with little change after the market trimmed its early gains. US stocks rose for most of the session, but in the afternoon the market declined as falls in crude oil future hit the energy shares. Higher metal price could help the Asian markets Friday to offset some negative sentiment that cut gains on Wall Street. Asian bourses ended mixed Thursday while fiscal concerns in euro zone persist. Hong Kong and Shanghai markets lost more than 1 per cent each. However, Japan's Nikkei 225 Average added 0.1 per cent, South Korea's Kospi rose 0.4% and Taiwan's Taiex finished 0.2% higher.

Kairiki Energy Limited (ASX:KIK) (PINK:KAIRF) is pleased to announce that its wholly-owned subsidiary Yilgarn Petroleum Philippines Pty Ltd has entered into an agreement with TG World (BVI) Corp. [a subsidiary of TG World Energy Corporation (CVE:TGE) (PINK:TGWEF)] to farm-out 4.9% of its current 35% interest in Service Contract 54 Block A (SC 54A), offshore, Northwest Palawan Basin, Philippines.