Net Asset Value(s)

NET ASSET VALUE

MERRILL LYNCH WORLD MINING TRUST PLC

The unaudited net asset value for Merrill Lynch World Mining Trust plc at close
of business on 9 October 2007 was:

794.15p Capital only (undiluted)
800.17p Including current year income (undiluted)
744.06p Capital only (diluted for warrants)
749.13p Including current year income (diluted for warrants)

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 Merrill Lynch World Mining Trust plc diluted NAV has been calculated
based on 29,814,855 warrants in issue.

4. 100,000 ordinary shares were purchased on 3 October 2007, bringing the total
amount of ordinary shares held in treasury to 13,776,677.

5. 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).