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 3 October 2014 were:

420.37p Capital only (undiluted)
430.98p including current year income (undiluted)

Notes:

1. Included in the cum income NAV and capital only NAV are amounts of 26.78
pence and 26.46 pence per share in respect of the Company's holding in the
London Mining Marampa royalty contract. This is based on the latest Directors'
valuation as at 22 August 2014. The board of BlackRock World Mining Trust plc
has noted the statement issued by London Mining on 29 September in respect of
its financing. It intends to make a further announcement on the carrying value
of the Marampa royalty agreement as and when specific and precise information
becomes available in regard to the financial position of London Mining.

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).

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