Portfolio Update

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST plc

All information is at 28 February 2014 and unaudited.

Performance at month end with net income reinvested

                       One    Three      Six     One    Three     Five
                     Month   Months   Months    Year    Years    Years
Net asset value       5.0%     3.3%     0.1%   -8.2%   -20.1%    70.4%
Share price           7.5%     2.6%     4.2%   -4.0%   -19.2%    70.9%

Sources: Datastream, BlackRock

At month end
Net asset value - capital only:        106.78p
Net asset value - cum income*:         107.68p
Share price:                           110.75p
Premium to NAV (cum income):              2.9%
Net yield:                                5.4%
Gearing - cum income:                    10.3%
Total assets^:                         £107.3m
Ordinary shares in issue:           99,608,000
Gearing range (as a % of net assets):    0-20%

*Includes net revenue of 0.90p.
^Includes current year revenue.

Sector                 % Total    Country               % Total
Analysis          Total Assets    Analysis         Total Assets
Integrated Oil            36.1    Global                   40.7
Diversified               20.1    Canada                   21.1
Exploration & Production  13.9    USA                      19.1
Copper                     7.6    Europe                    9.4 
Gold                       6.2    Latin America             7.4
Oil Sands                  4.9    Africa                    4.5
Iron Ore                   4.0    Asia                      4.3
Oil Services               3.3    Australia                 2.7
Distribution               2.8    China                     1.1
Nickel                     2.6    Current liabilities     (10.3)
Coal                       2.5                            -----
Fertilizers                2.0                            100.0
Aluminium                  1.5                            =====
Silver                     1.2
Uranium                    1.1
Platinum                   0.5
Current liabilities      (10.3)
                         -----
                         100.0
                         =====

Ten Largest Equity Investments(in alphabetical order)

Company               Region of Risk
BHP Billiton          Global
BP                    Global
Canadian Oil Sands    Canada
Chevron               Global
Eni                   Europe
ExxonMobil            Global
GlencoreXstrata       Global
Rio Tinto             Global
Royal Dutch Shell     Global
Total                 Global

Commenting on the markets, Olivia Ker and Tom Holl, representing the Investment
Manager noted:

Strong performance across both the mining and energy sectors during February
resulted in a 7.5% share price appreciation for the Company during the month.

There was a mixed performance across the commodity complex during February. The
WTI Oil Price rose by 5.2% to US$103/barrel, however, the natural gas price
which has performed strongly year-to-date following an unseasonably cold winter
in the United States declined by 7% to US$4.71/MMBTU. Among the metals, the
nickel price was the best performer, up by 5% to US$6.68/lb, with renewed
interest in the metal on the back of Indonesia's ban on the export of raw
material announced at the beginning of the year. The iron ore price continued
to come under pressure falling by 3.7% to US$118/t, with data suggesting a
weaker than expected re-stocking period by the Steel Mills following the
Chinese New Year. Gold has continued to perform well year-to-date with the gold
price rising by 6.6% to US$1326/oz as at the end of February.

Ongoing uncertainty around emerging markets, recent turmoil in the Ukraine &
Russia and weaker data out of the United States has seen investors increasingly
look towards safe haven assets such as gold. February marked the first month of
net inflows into global gold ETFs in 13 months. A number of the mining and
energy companies held within the portfolio reported their full year financial
results during February. In general, the results from the mining companies were
well received by the market. Management teams continue to remained focused on
improving their balance sheet. It was a more mixed picture among the energy
companies, with many of the majors providing positive rhetoric around capital
expenditure discipline and shareholder returns.


14 March 2014

ENDS


Latest information is available by typing www.blackrock.co.uk/brci on the internet, 
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from hyperlinks on the Manager’s website (or any other website) is incorporated into, 
or forms part of, this announcement.