SAO PAULO, May 21 (Reuters) - Brazilian mining giant Vale (VALE5.SA: Quote, Profile, Research) (VALE.N: Quote, Profile, Research) said on Thursday it had cut its investment plans for 2009 to $9 billion from $14.2 billion.

The revision was based on the volatility of currencies in which the company's spending is denominated, among other reasons, the company said in a statement.

(Reporting by Roberto Samora; Writing by Ana Nicolaci da Costa)