Net Asset Value(s)

NET ASSET VALUE

BLACKROCK WORLD MINING TRUST PLC

The unaudited net asset values for BlackRock World Mining Trust plc at close of
business on 19 May 2015 were:

346.88p Capital only (undiluted)
354.20p Including current year income (undiluted)

Notes:

1. Revenue items included in net asset value, with dividends payable deducted
on the ex-dividend date.

2. The undiluted net asset value per share has been calculated on 177,287,242
ordinary shares excluding 15,724,600 held in treasury.

3. 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).

4. Investments have been valued on a bid price basis.