Net Asset Value(s)

NET ASSET VALUE

BLACKROCK WORLD MINING TRUST PLC

Following developments in the US overnight and the closure of financial
exchanges due to Hurricane Sandy, the US equity exchanges were closed on 
29 October 2012. Given that there are no official prices for many US traded
securities, today's NAV has been calculated using the closing bid market 
prices of US listed securities on Friday, 26 October 2012.

The unaudited net asset values for BlackRock World Mining Trust plc at close of
business on 29 October 2012 were:

662.17p Capital only (undiluted)
673.99p Including current year income (undiluted)

Notes:
1. Investments have been valued on a bid price basis.
2. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.
3. The undiluted net asset value per share has been calculated on 177,287,242
ordinary shares excluding 15,724,600 held in treasury.
4. For the latest daily net asset value, previous month end performance
statistics, asset allocation and ten largest holdings of the BlackRock managed
Investment Trusts; see BLRKINDEX on Reuters or page 8800 on ICB (Topic 3).