Total Voting Rights

BlackRock World Mining Trust plc ("the Company")

Voting Rights and Capital

In conformity with the Disclosure and Transparency Rules (the "Rules")
provision 5.6.1, the Company would like to notify the market that as at 
31 May 2011 its issued share capital consisted of 177,537,242 Ordinary Shares
of 5 pence each, carrying one vote per share. As at 31 May 2011, the Company 
held 15,474,600 ordinary shares in treasury.

Shareholders should use 177,537,242 as the denominator for the calculations by
which they will determine if they are required to notify their interest in, or
a change to their interest in the Company under the Rules.

Contact:
Ms C Driscoll
Company Secretary
BlackRock Investment Management (UK) Limited

Date:
1 June 2011