Portfolio Update

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST PLC

All information is at 31 January 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  -3.5%    -6.6%    -5.2%  -12.5%  -22.3%   57.8%
Share price      -7.0%    -6.7%    -5.8%  -13.2%  -22.8%   51.7%

Sources: Datastream, BlackRock

At month end
Net asset value - capital only:          102.16p
Net asset value - cum income*:           102.55p
Share price:                             103.00p
Premium to NAV (cum income):                0.4%
Net yield:                                  5.8%
Gearing - cum income:                       8.7%
Total assets^:                           £101.1m
Ordinary shares in issue:             98,608,000**
Gearing range (as a % of net assets):      0-20%

*Includes net revenue of 0.39p.
^^Includes current year revenue.
**Since 31 January 2014 the Company's issued share capital has increased to
99,358,000.

Sector                % Total               Country         % Total
Analysis         Total Assets              Analysis    Total Assets

Integrated Oil           35.2                Global            40.0
Diversified              19.5                Canada            20.6
Exploration & Production 14.2                   USA            19.1
Copper                    8.6                Europe             8.8 
Gold                      6.9         Latin America             7.4
Oil Sands                 3.9                  Asia             4.5
Oil Services              3.3                Africa             4.1
Coal                      2.6             Australia             2.2
Nickel                    2.4                 China             1.1
Iron Ore                  2.4   Current liabilities            (7.8)
Aluminium                 2.2
Fertilizers               2.0
Distribution              2.0                                 -----
Silver                    1.1                                 100.0
Uranium                   1.0                                 =====
Platinum                  0.5
Current liabilities      (7.8)
                        -----
                        100.0
                        =====

Ten Largest Equity Investments (in alphabetical order)

Company            Region of Risk

Chevron            Global
Exxon Mobil        Global
BHP Billiton       Global
Royal Dutch Shell  Global
BP                 Global
Rio Tinto          Global
GlencoreXstrata    Global
Eni                Europe
Total              Global
Teck Resources     Canada

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

Following a strong rally in base metal prices during December 2013, the
Bloomberg Base Metals Index retreated by 4.5%. Copper, the flagship base metal
fell by 4% to $3.20/lb. Encouragingly copper inventories, currently at 480kt,
are a 17 month low, 50% below the peak inventory levels in June 2013. Iron ore
which remained robust through the second half of 2014, declined by 10% to
US$120/t during January ahead of the Chinese New Year, a seasonally weak period
for demand. Gold has performed well year-to-date with the gold price rising by
3.6% to US$1,275/oz as at the end of January. The US Federal Reserve announced
the beginning of the highly anticipated tapering program in December 2013,
where it has continued into January. Despite the onset of tapering the gold
price has been relatively robust. An important data point for gold, US
payrolls, rose less than expected during January providing further support for
the price. The strongest performer during January were the gold equities, up by
11.7%, outperforming the MSCI World Energy Index which is down by 3.0%
year-to-date. Ongoing improvements in the operating cost base and improved
capital discipline of the gold producers has been supportive for share prices,
with the equities displaying positive beta to the gold price. During January we
have seen some modest weakening in the Brent oil price which fell by 1.4% to
US$109/barrel with the MSCI World Energy Index falling by 5.3% during January.
Henry Hub gas prices continue to strengthen rising by 11.9% during January to
US$4.69/MMBTU as the unseasonably cold weather continues in the United States.
While the gas price is expected to weaken from current levels, it is likely to
remain elevated versus prior years as we enter the summer at record low storage
levels.

25 February 2014

ENDS

Latest information is available by typing www.blackrock.co.uk/brci on the
internet, "BLRKINDEX" on Reuters, "BLRK" on Bloomberg or "8800" on Topic 3 (ICV
terminal). Neither the contents of the Manager's website nor the contents of
any website accessible from hyperlinks on the Manager's website (or any other
website) is incorporated into, or forms part of, this announcement.