Portfolio Update

BLACKROCK COMMODITIES INCOME INVESTMENT TRUST plc

All information is at 31 October 2013 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        4.3%     1.5%     2.2%    -2.1%    -5.7%     75.3%
Share price            5.7%     1.0%    -0.8%    -4.9%    -7.7%     78.9%

Sources: Datastream, BlackRock

At month end
Net asset value - capital only:         110.83p
Net asset value - cum income**:         111.40p
Share price:                            112.00p
Premium to NAV (cum income):               0.5%
Net yield:                                 5.4%
Gearing - cum income:                      7.0%
Gearing range (as a % of net assets)     0%-20%
Total assets^^:                         £113.2m
Ordinary shares in issue*:            95,008,000

**Includes net revenue of 0.60p.
^^includes current year revenue.
*Following the issue of 250,000 shares on 15 November 2013, the issued share
capital increased to 95,258,000.

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

Integrated Oil              33.0     Global                       35.4
Diversified                 19.1     Canada                       21.0
Exploration & Production    14.8     USA                          17.7 
Copper                       7.6     Latin America                 9.0    
Gold                         6.6     Europe                        7.1
Oil Services                 3.8     Asia                          4.3 
Oil Sands                    3.2     Africa                        2.4
Iron Ore                     2.4     South Africa                  1.7
Distribution                 1.8     China                         1.2
Aluminium                    1.8     Australia                     1.1
Fertilizer                   1.7     Current liabilities          (0.9)
Silver                       1.2                                 -----
Coal                         1.2                                 100.0
Uranium                      0.8                                 =====
Nickel                       0.7                                
Tin                          0.7
Platinum                     0.5                    
Current liabilities         (0.9)
                           -----
                           100.0
                           =====

Ten Largest Equity Investments (in alphabetical order)

Company                      Region of Risk

BHP Billiton                    Global
BP                              Global
Chevron                         Global
Eni                             Europe
ExxonMobil                      Global
Fresnillo                       Global
Glencore                        Global
Rio Tinto                       Global
Teck                            Canada
Total                           Global

Commenting on the markets, Richard Davis, representing the Investment Manager
noted:

In October markets focused on the US Government shutdown, its resolution and
the impact it may have on the timeline for the tapering of the US Federal
Reserve's Quantitative Easing programme.  Meanwhile, Chinese data continued to
show improvements with notably better than expected PMI readings although some
concerns on liquidity emerged mid-month.  Spurred by this robust Chinese
economic data, mining shares gained 3.9% (in Sterling terms) in October.  Base
metal prices increased by 0.8% with copper closing the month at US$3.29/lb. 
Gold drifted lower to close at US$1,324/oz.  Importantly, investors' appetite
for the mining sector has improved as commodity prices have held up better than
expected, in particular copper and iron ore.

In the energy sector, oil prices in both international and US markets continued
to fall during the month.  Reports continued to guide towards a successful
resolution to the Iranian/US negotiations which will ultimately lead to an end
to the Iranian oil embargo.  This acted as a headwind to Brent (international
oil benchmark) which fell by 0.3% to US$108 per barrel.  Growing production and
unseasonably warm weather in the US resulted in a build in inventories at
Cushing, Oklahoma where West Texas Intermediate (WTI, the US benchmark) is
priced.  WTI declined by 5.9% to US$96 per barrel, causing the differential
between Brent and WTI to widen to more than US$10 per barrel.  Energy equities
performed well, despite the weaker tone to crude markets.  The MSCI World
energy Index finished the month up by 4.7% (in Sterling terms capital only).

All data sourced from Datastream and quoted in US Dollars unless otherwise
stated.

19 November 2013

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.