Free Writing Prospectus - Filing Under Securities Act Rules 163/433 (fwp)

Table of Contents

Free Writing Prospectus

Filed Pursuant to Rule 433

Registration No. 333-169119

December 10, 2012

iPath Website Copy Deck

Product Pages

Table of Contents

Table of Contents

Table of Contents

PRODUCT PAGES-BCM

-Commodities-Broad-

http://ipathetn.com/product/BCM

[Header]

iPath ^® Pure Beta Broad Commodity ETN (BCM)

[Body]

The iPath ^® Pure Beta Broad Commodity ETN is designed to provide investors with exposure to the Barclays Commodity Index Pure Beta Total Return.

The Barclays Commodity Index Pure Beta Total Return (the “Index”) is comprised of a basket of exchange traded futures contracts and reflects the returns that are potentially available through an unleveraged investment in the futures contracts on certain physical commodities. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

[Tabs]

[Overview Tab]

Related Resources

(icon) Prospectus

(icon) Fact Sheet

(icon) iPath Commodity ETNs

(icon) Basics of iPath Pure Beta Commodity ETNs

(icon) Periodic Returns Table

(icon) Premiums and Discounts

(icon) Index Components

(icon) IV/Index History

(icon) Indicative Value Information

Jump To: Profile  |  Correlations  |  Returns  |  Terms

Source: Barclays.

4

Table of Contents

Source: BlackRock. Period ending xx/xx/xxxx.

The performance quoted represents past performance and does not guarantee future results. Investment return and principal value of an investment will fluctuate so that an investment, when sold or redeemed may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted. See additional market price information.(jump link {http://ipathetn.com/bcm-overview.jsp#market_returns}

Sources: S&P, Dow Jones Opco, LLC, UBS Securities LLC, Barclays, MSCI Inc., BlackRock XX/XX - XX/XX, based on weekly returns.

Index Returns

Index Returns measure returns over the relevant period using the change in the index level expressed as a percentage from the beginning of the relevant period to the end of the relevant period. Index Returns are for illustrative purposes only and do not represent actual iPath ETN performance. Index Returns do not reflect any management fees, transaction costs, or expenses which would reduce your actual return. Indexes are unmanaged and one cannot invest directly in an index.

Market Returns

Market Returns measure returns over the relevant period using the change in the midpoint of the bid/ask spread at 4:00 pm Eastern time (or the last midpoint of the bid/ask spread prior to 4:00 pm Eastern time) expressed as a percentage from the beginning of the relevant period to the end of the relevant period and do not represent the returns you would receive if you traded at other times. Market Returns do not account for brokerage commissions, which will reduce actual returns.

Indicative Value Returns

The Indicative Value Returns measure the returns over the relevant period using the change in the Indicative Value expressed as a percentage from the beginning of the relevant period to the end of the relevant period.

Redemption Value

Subject to the notification requirements described in the applicable prospectus, the ETNs may be redeemed by the holder on any Redemption Date during the term of the ETNs. If the ETNs are redeemed by the holder, on such Redemption Date, the holder will receive a cash payment in U.S. dollars per ETN in an amount equal to the Closing Indicative Value of the ETNs on the applicable Valuation Date. A holder must redeem at least 50,000 iPath ETNs ² of the same series at one time in order to exercise the right to redeem ETNs on any Redemption Date.

5

Table of Contents

A Redemption Date is the third business day following each Valuation Date (other than the Final Valuation Date). The Final Redemption Date will be the third business day following the Valuation Date that is immediately prior to the Final Valuation Date. Valuation Date means each business day from the Initial Valuation Date to the Final Valuation Date, inclusive or, if such date is not a trading day, the next succeeding trading day, not to exceed five business days.

Indicative Value

An “intraday indicative value” meant to approximate the intrinsic economic value of each series of iPath ETNs, is calculated and published every 15 seconds during each trading day by NYSE Arca or a successor via the facilities of the Consolidated Tape Association under the respective ticker symbol listed above. Additionally, the Daily Indicative Value of the iPath ETNs is calculated and posted each trading day to the Indicative Values table above. In connection with iPath ETNs, the term “intraday indicative value” refers to the value at a given time determined based on the following equation:

The intraday indicative value calculation is provided for reference purposes only. It is not intended as a price or quotation, or as an offer or solicitation for the purchase, sale, redemption or termination of the iPath ETNs, nor does it reflect hedging or transaction costs, credit considerations, market liquidity, or bid-offer spreads.

Furthermore, as the intraday indicative note value is calculated using the Closing Indicative Value on the immediately preceding calendar day, the intraday indicative value published at any time during a given trading day will not reflect the Futures Execution Cost or the Investor Fee that may have accrued over the course of such trading day. Published Index levels from the index sponsor may occasionally be subject to delay or postponement. Any such delays or postponements will affect the Current Index Level and therefore the intraday indicative value of the iPath ETN. Index levels provided by the index sponsor do not necessarily reflect the depth and liquidity of the underlying commodities markets. For this reason and others, the actual trading price of the iPath ETN may be different from their intraday indicative value.

6

Table of Contents

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

7

Table of Contents

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

[Header]

iPath ^® Pure Beta Broad Commodity ETN (BCM)

[Body]

The iPath ^® Pure Beta Broad Commodity ETN is designed to provide investors with exposure to the Barclays Commodity Index Pure Beta Total Return.

The Barclays Commodity Index Pure Beta Total Return (the “Index”) is comprised of a basket of exchange traded futures contracts and reflects the returns that are potentially available through an unleveraged investment in the futures contracts on certain physical commodities. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

iPath ^® Pure Beta Broad Commodity ETN—Components (as of xx/xx/xxxx)

As of XX/XX/XX. Source: Barclays, NYM–NYMEX Division New York Mercantile Exchange, CBT–Chicago Board of Trade, CME–Chicago Mercantile Exchange, LME–London Metal Exchange, CMX–COMEX Division–New York Mercantile Exchange, NYF-ICE Futures U.S.

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

8

Table of Contents

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

[Header]

iPath ^® Pure Beta Broad Commodity ETN (BCM)

[Body]

The iPath ^® Pure Beta Broad Commodity ETN is designed to provide investors with exposure to the Barclays Commodity Index Pure Beta Total Return.

The Barclays Commodity Index Pure Beta Total Return (the “Index”) is comprised of a basket of exchange traded futures contracts and reflects the returns that are potentially available through an unleveraged investment in the futures contracts on certain physical commodities. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

Source: Barclays, as of XX/XX/XX. Subject to change.

9

Table of Contents

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

10

Table of Contents

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

END PRODUCT PAGES - BCM

11

Table of Contents

PRODUCT PAGES - SBV

http://ipathetn.com/product/SBV

[Header]

iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN (SBV)

The iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN is designed to provide investors with exposure to the Barclays Pure Beta Series-2 Total Return Index.

The Barclays Pure Beta Series-2 Total Return Index (the “Index”) is comprised of a basket of exchange traded futures contracts and reflects the returns potentially available through an unleveraged investment in futures contracts on the physical commodities comprising the S&P GSCI ^® Total Return Index. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

[Tabs]

[Overview Tab]

Related Resources

(icon) Prospectus

(icon) Fact Sheet

(icon) iPath Commodity ETNs

(icon) The Basics of iPath Pure Beta Commodity ETNs

(icon) Periodic Returns Table

(icon) Premiums and Discounts

(icon) Index Components

(icon) IV/Index History

(icon) Indicative Value Information

Jump To: Profile  |  Correlations  |  Returns  |  Terms

Source: Barclays.

12

Table of Contents

Source: BlackRock. Period ending xx/xx/xxxx.

The performance quoted represents past performance and does not guarantee future results. Investment return and principal value of an investment will fluctuate so that an investment, when sold or redeemed may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted. See additional market price information.(jump link {http://ipathetn.com/sbv-overview.jsp#market_returns}

Sources: S&P, UBS Securities LLC, Dow Jones Opco, LLC, Barclays, MSCI Inc., BlackRock XX/XX - XX/XX, based on weekly returns.

Index Returns

Index Returns measure returns over the relevant period using the change in the index level expressed as a percentage from the beginning of the relevant period to the end of the relevant period. Index Returns are for illustrative purposes only and do not represent actual iPath ETN performance. Index Returns do not reflect any management fees, transaction costs, or expenses which would reduce your actual return. Indexes are unmanaged and one cannot invest directly in an index.

Market Returns

Market Returns measure returns over the relevant period using the change in the midpoint of the bid/ask spread at 4:00 pm Eastern time (or the last midpoint of the bid/ask spread prior to 4:00 pm Eastern time) expressed as a percentage from the beginning of the relevant period to the end of the relevant period and do not represent the returns you would receive if you traded at other times. Market Returns do not account for brokerage commissions, which will reduce actual returns.

Indicative Value Returns

The Indicative Value Returns measure the returns over the relevant period using the change in the Indicative Value expressed as a percentage from the beginning of the relevant period to the end of the relevant period.

13

Table of Contents

Redemption Value

Subject to the notification requirements described in the applicable prospectus, the ETNs may be redeemed by the holder on any Redemption Date during the term of the ETNs. If the ETNs are redeemed by the holder, on such Redemption Date, the holder will receive a cash payment in U.S. dollars per ETN in an amount equal to the Closing Indicative Value of the ETNs on the applicable Valuation Date. A holder must redeem at least 50,000 iPath ETNs ² of the same series at one time in order to exercise the right to redeem ETNs on any Redemption Date.

A Redemption Date is the third business day following each Valuation Date (other than the Final Valuation Date). The Final Redemption Date will be the third business day following the Valuation Date that is immediately prior to the Final Valuation Date. Valuation Date means each business day from the Initial Valuation Date to the Final Valuation Date, inclusive or, if such date is not a trading day, the next succeeding trading day, not to exceed five business days.

Indicative Value

An “intraday indicative value” meant to approximate the intrinsic economic value of each series of iPath ETNs, is calculated and published every 15 seconds during each trading day by NYSE Arca or a successor via the facilities of the Consolidated Tape Association under the respective ticker symbol listed above. Additionally, the Daily Indicative Value of the iPath ETNs is calculated and posted each trading day to the Indicative Values table above. In connection with iPath ETNs, the term “intraday indicative value” refers to the value at a given time determined based on the following equation:

The intraday indicative value calculation is provided for reference purposes only. It is not intended as a price or quotation, or as an offer or solicitation for the purchase, sale, redemption or termination of the iPath ETNs, nor does it reflect hedging or transaction costs, credit considerations, market liquidity, or bid-offer spreads. Furthermore, as the intraday indicative note value is calculated using the Closing Indicative Value on the immediately preceding calendar day, the intraday indicative value published at any time during a given trading day will not reflect the Futures Execution Cost or the Investor Fee that may have accrued over the course of such trading day. Published Index levels from the index sponsor may occasionally be subject to delay or postponement. Any such delays or postponements will affect the Current Index Level and therefore the intraday indicative value of the iPath ETN. Index levels provided by the index sponsor do not necessarily reflect the depth and liquidity of the underlying commodities markets. For this reason and others, the actual trading price of the iPath ETN may be different from their intraday indicative value.

14

Table of Contents

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

15

Table of Contents

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

[Header]

iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN (SBV)

The iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN is designed to provide investors with exposure to the Barclays Pure Beta Series-2 Total Return Index.

The Barclays Pure Beta Series-2 Total Return Index (the “Index”) is comprised of a basket of exchange traded futures contracts and reflects the returns potentially available through an unleveraged investment in futures contracts on the physical commodities comprising the S&P GSCI ^® Total Return Index. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN—Components (as of xx/xx/xxxx)

Source: Barclays, S&P. NYM-NYMEX Division New York Mercantile Exchange, PE-International Petroleum Exchange, CBT-Chicago Board of Trade, CME-Chicago Mercantile Exchange, LME-London Mercantile Exchange, CMX-COMEX Division-New York Mercantile Exchange, NYC-New York Cotton Exchange (Division of NYBOT), KBT-Kansas City Board of Trade, CSC-Coffee, Sugar and Cocoa Exchange.

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

16

Table of Contents

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

[Header]

iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN (SBV)

The iPath ^® Pure Beta S&P GSCI ^® -Weighted ETN is designed to provide investors with exposure to the Barclays Pure Beta Series-2 Total Return Index.

The Barclays Pure Beta Series-2 Total Return Index (the “Index”) is comprised of a basket of exchange traded futures contracts and reflects the returns potentially available through an unleveraged investment in futures contracts on the physical commodities comprising the S&P GSCI ^® Total Return Index. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

Source: Barclays, as of XX/XX/XX. Subject to change.

17

Table of Contents

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

18

Table of Contents

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

END PRODUCT PAGES - SBV

19

Table of Contents

PRODUCT PAGES - ONG

-Commodities -Sector-

http://ipathetn.com/product/ONG

[Header]

iPath ^® Pure Beta Energy ETN (ONG)

[Body]

The iPath ^® Pure Beta Energy ETN is designed to provide investors with exposure to the Barclays Commodity Index Energy Pure Beta Total Return.

The Barclays Commodity Index Energy Pure Beta Total Return (the “Index”) is a sub-Index of the Barclays Commodity Index Pure Beta Total Return and reflects the returns that are potentially available through an unleveraged investment in six futures contracts on energy commodities traded on U.S. exchanges. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

[Tabs]

[Overview Tab]

Related Resources

(icon) Prospectus

(icon) Fact Sheet

(icon) iPath Commodity ETNs

(icon) The Basics of iPath Pure Beta Commodity ETNs

(icon) Periodic Returns Table

(icon) Premiums and Discounts

(icon) Index Components

(icon) IV/Index History

(icon) Indicative Value Information

Jump to: Profile  |  Correlations  |  Returns  |  Terms

Source: Barclays.

20

Table of Contents

Source: BlackRock. Period ending xx/xx/xxxx.

The performance quoted represents past performance and does not guarantee future results. Investment return and principal value of an investment will fluctuate so that an investment, when sold or redeemed may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted. See additional market price information.(jump link {http://ipathetn.com/ong-overview.jsp#market_returns}

Sources: S&P, Dow Jones Opco, LLC, UBS Securities LLC, Barclays, MSCI Inc., BlackRock XX/XX - XX/XX, based on weekly returns.

Index Returns

Index Returns measure returns over the relevant period using the change in the index level expressed as a percentage from the beginning of the relevant period to the end of the relevant period. Index Returns are for illustrative purposes only and do not represent actual iPath ETN performance. Index Returns do not reflect any management fees, transaction costs, or expenses which would reduce your actual return. Indexes are unmanaged and one cannot invest directly in an index.

Market Returns

Market Returns measure returns over the relevant period using the change in the midpoint of the bid/ask spread at 4:00 pm Eastern time (or the last midpoint of the bid/ask spread prior to 4:00 pm Eastern time) expressed as a percentage from the beginning of the relevant period to the end of the relevant period and do not represent the returns you would receive if you traded at other times. Market Returns do not account for brokerage commissions, which will reduce actual returns.

Indicative Value Returns

The Indicative Value Returns measure the returns over the relevant period using the change in the Indicative Value expressed as a percentage from the beginning of the relevant period to the end of the relevant period.

Redemption Value

Subject to the notification requirements described in the applicable prospectus, the ETNs may be redeemed by the holder on any Redemption Date during the term of the ETNs. If the ETNs are redeemed by the holder, on such Redemption Date, the holder will receive a cash payment in U.S. dollars per ETN in an amount equal to the Closing Indicative Value of the ETNs on the applicable Valuation Date. A holder must redeem at least 50,000 iPath ETNs ² of the same series at one time in order to exercise the right to redeem ETNs on any Redemption Date.

21

Table of Contents

A Redemption Date is the third business day following each Valuation Date (other than the Final Valuation Date). The Final Redemption Date will be the third business day following the Valuation Date that is immediately prior to the Final Valuation Date. Valuation Date means each business day from the Initial Valuation Date to the Final Valuation Date, inclusive or, if such date is not a trading day, the next succeeding trading day, not to exceed five business days.

Indicative Value

An “intraday indicative value” meant to approximate the intrinsic economic value of each series of iPath ETNs, is calculated and published every 15 seconds during each trading day by NYSE Arca or a successor via the facilities of the Consolidated Tape Association under the respective ticker symbol listed above. Additionally, the Daily Indicative Value of the iPath ETNs is calculated and posted each trading day to the Indicative Values table above. In connection with iPath ETNs, the term “intraday indicative value” refers to the value at a given time determined based on the following equation:

The intraday indicative value calculation is provided for reference purposes only. It is not intended as a price or quotation, or as an offer or solicitation for the purchase, sale, redemption or termination of the iPath ETNs, nor does it reflect hedging or transaction costs, credit considerations, market liquidity, or bid-offer spreads. Furthermore, as the intraday indicative note value is calculated using the Closing Indicative Value on the immediately preceding calendar day, the intraday indicative value published at any time during a given trading day will not reflect the Futures Execution Cost or the Investor Fee that may have accrued over the course of such trading day. Published Index levels from the index sponsor may occasionally be subject to delay or postponement. Any such delays or postponements will affect the Current Index Level and therefore the intraday indicative value of the iPath ETN. Index levels provided by the index sponsor do not necessarily reflect the depth and liquidity of the underlying commodities markets. For this reason and others, the actual trading price of the iPath ETN may be different from their intraday indicative value.

22

Table of Contents

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

Concentration Risk : Because the ETNs are linked to an index composed of futures contracts on a single commodity or in only one commodity sector, the ETNs are less diversified than other funds. The ETNs can therefore experience greater volatility than other funds or investments.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

23

Table of Contents

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

[Header]

iPath ^® Pure Beta Energy ETN (ONG)

[Body]

The iPath ^® Pure Beta Energy ETN is designed to provide investors with exposure to the Barclays Commodity Index Energy Pure Beta Total Return.

The Barclays Commodity Index Energy Pure Beta Total Return (the “Index”) is a sub-Index of the Barclays Commodity Index Pure Beta Total Return and reflects the returns that are potentially available through an unleveraged investment in six futures contracts on energy commodities traded on U.S. exchanges. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

Source: Barclays, as of XX/XX/XX. Subject to change.

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

24

Table of Contents

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

Concentration Risk : Because the ETNs are linked to an index composed of futures contracts on a single commodity or in only one commodity sector, the ETNs are less diversified than other funds. The ETNs can therefore experience greater volatility than other funds or investments.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

Uncertain Tax Treatment : Significant aspects of the tax treatment of the ETNs are uncertain. You should consult your own tax advisor about your own tax situation.

Each of the Barclays commodities indices referenced herein is a trademark of Barclays Bank PLC.

END PRODUCT PAGES - ONG

25

Table of Contents

PRODUCT PAGES - DIRT

-Commodities -Sector-

http://ipathetn.com/product/DIRT

[Header]

iPath ^® Pure Beta Agriculture ETN (DIRT)

[Body]

The iPath ^® Pure Beta Agriculture ETN is designed to provide investors with exposure to the Barclays Commodity Index Agriculture Pure Beta Total Return.

The Barclays Commodity Index Agriculture Pure Beta Total Return (the “Index”) is a sub-Index of the Barclays Commodity Index Pure Beta Total Return and reflects the returns that are potentially available through an unleveraged investment in nine futures contracts on agricultural commodities traded on U.S. exchanges. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

[Tabs]

[Overview Tab]

Related Resources

(icon) Prospectus

(icon) Fact Sheet

(icon) The Basics of iPath Pure Beta Commodity ETNs

(icon) Periodic Returns Table

(icon) Index Components

(icon) IV/Index History

(icon) Indicative Value Information

Jump to: Profile  |  Correlations  |  Returns  |  Terms

Source: Barclays

26

Table of Contents

Source: BlackRock. Period ending xx/xx/xxxx.

The performance quoted represents past performance and does not guarantee future results. Investment return and principal value of an investment will fluctuate so that an investment, when sold or redeemed may be worth more or less than the original cost. Current performance may be lower or higher than the performance quoted. See additional market price information.(jump link {http://ipathetn.com/dirt-overview.jsp#market_returns}

Sources: S&P, Dow Jones Opco, LLC, UBS Securities LLC, Barclays, MSCI Inc., BlackRock XX/XX - XX/XX, based on weekly returns.

Index Returns

Index Returns measure returns over the relevant period using the change in the index level expressed as a percentage from the beginning of the relevant period to the end of the relevant period. Index Returns are for illustrative purposes only and do not represent actual iPath ETN performance. Index Returns do not reflect any management fees, transaction costs, or expenses which would reduce your actual return. Indexes are unmanaged and one cannot invest directly in an index.

Market Returns

Market Returns measure returns over the relevant period using the change in the midpoint of the bid/ask spread at 4:00 pm Eastern time (or the last midpoint of the bid/ask spread prior to 4:00 pm Eastern time) expressed as a percentage from the beginning of the relevant period to the end of the relevant period and do not represent the returns you would receive if you traded at other times. Market Returns do not account for brokerage commissions, which will reduce actual returns.

Indicative Value Returns

The Indicative Value Returns measure the returns over the relevant period using the change in the Indicative Value expressed as a percentage from the beginning of the relevant period to the end of the relevant period.

Redemption Value

Subject to the notification requirements described in the applicable prospectus, the ETNs may be redeemed by the holder on any Redemption Date during the term of the ETNs. If the ETNs are redeemed by the holder, on such Redemption Date, the holder will receive a cash payment in U.S. dollars per ETN in an amount equal to the Closing Indicative Value of the ETNs on the applicable Valuation Date. A holder must redeem at least 50,000 iPath ETNs ² of the same series at one time in order to exercise the right to redeem ETNs on any Redemption Date.

27

Table of Contents

A Redemption Date is the third business day following each Valuation Date (other than the Final Valuation Date). The Final Redemption Date will be the third business day following the Valuation Date that is immediately prior to the Final Valuation Date. Valuation Date means each business day from the Initial Valuation Date to the Final Valuation Date, inclusive or, if such date is not a trading day, the next succeeding trading day, not to exceed five business days.

Indicative Value

An “intraday indicative value” meant to approximate the intrinsic economic value of each series of iPath ETNs, is calculated and published every 15 seconds during each trading day by NYSE Arca or a successor via the facilities of the Consolidated Tape Association under the respective ticker symbol listed above. Additionally, the Daily Indicative Value of the iPath ETNs is calculated and posted each trading day to the Indicative Values table above. In connection with iPath ETNs, the term “intraday indicative value” refers to the value at a given time determined based on the following equation:

The intraday indicative value calculation is provided for reference purposes only. It is not intended as a price or quotation, or as an offer or solicitation for the purchase, sale, redemption or termination of the iPath ETNs, nor does it reflect hedging or transaction costs, credit considerations, market liquidity, or bid-offer spreads. Furthermore, as the intraday indicative note value is calculated using the Closing Indicative Value on the immediately preceding calendar day, the intraday indicative value published at any time during a given trading day will not reflect the Futures Execution Cost or the Investor Fee that may have accrued over the course of such trading day. Published Index levels from the index sponsor may occasionally be subject to delay or postponement. Any such delays or postponements will affect the Current Index Level and therefore the intraday indicative value of the iPath ETN. Index levels provided by the index sponsor do not necessarily reflect the depth and liquidity of the underlying commodities markets. For this reason and others, the actual trading price of the iPath ETN may be different from their intraday indicative value.

28

Table of Contents

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

Concentration Risk : Because the ETNs are linked to an index composed of futures contracts on a single commodity or in only one commodity sector, the ETNs are less diversified than other funds. The ETNs can therefore experience greater volatility than other funds or investments.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

29

Table of Contents

[Header]

iPath ^® Pure Beta Agriculture ETN (DIRT)

[Body]

The iPath ^® Pure Beta Agriculture ETN is designed to provide investors with exposure to the Barclays Commodity Index Agriculture Pure Beta Total Return.

The Barclays Commodity Index Agriculture Pure Beta Total Return (the “Index”) is a sub-Index of the Barclays Commodity Index Pure Beta Total Return and reflects the returns that are potentially available through an unleveraged investment in nine futures contracts on agricultural commodities traded on U.S. exchanges. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

Source: Barclays. Subject to change.

Selected Risk Considerations

An investment in the iPath ETNs described herein (the “ETNs”) involves risks. Selected risks are summarized here, but we urge you to read the more detailed explanation of risks described under “Risk Factors” in the applicable prospectus supplement and pricing supplement.

You May Lose Some or All of Your Principal : The ETNs are exposed to any decrease in the level of the underlying index between the inception date and the applicable valuation date. Additionally, if the level of the underlying index is insufficient to offset the negative effect of the investor fee and other applicable costs, you will lose some or all of your investment at maturity or upon redemption, even if the value of such index has increased. Because the ETNs are subject to an investor fee and any other applicable costs, the return on the ETNs will always be lower than the total return on a direct investment in the index components. The ETNs are riskier than ordinary unsecured debt securities and have no principal protection.

Credit of Barclays Bank PLC : The ETNs are unsecured debt obligations of the issuer, Barclays Bank PLC, and are not, either directly or indirectly, an obligation of or guaranteed by any third party. Any payment to be made on the ETNs, including any payment at maturity or upon redemption, depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due. As a result, the actual and perceived creditworthiness of Barclays Bank PLC will affect the market value, if any, of the ETNs prior to maturity or redemption. In addition, in the event Barclays Bank PLC were to default on its obligations, you may not receive any amounts owed to you under the terms of the ETNs.

Issuer Redemption : If specified in the applicable prospectus, Barclays Bank PLC will have the right to redeem or “call” a series of ETNs (in whole but not in part) at its sole discretion and without your consent on any trading day on or after the inception date until and including maturity.

30

Table of Contents

Barclays Pure Beta Series 2 Methodology : The Barclays Pure Beta Series 2 Methodology seeks to mitigate distortions in the commodities markets associated with investment flows and supply and demand distortions. However, there is no guarantee that the Pure Beta Series 2 Methodology will succeed in these objectives and an investment in the ETNs linked to indices using this methodology may underperform compared to an investment in a traditional commodity index linked to the same commodities.

Market and Volatility Risk : The prices of physical commodities, including the commodities underlying the index components, can fluctuate widely due to supply and demand disruptions in major producing or consuming regions. Additionally, the market value of the ETNs may be influenced by many unpredictable factors including changes in supply and demand relationships, governmental policies and economic events.

Concentration Risk : Because the ETNs are linked to an index composed of futures contracts on a single commodity or in only one commodity sector, the ETNs are less diversified than other funds. The ETNs can therefore experience greater volatility than other funds or investments.

A Trading Market for the ETNs May Not Develop : Although the ETNs are listed on NYSE Arca, a trading market for the ETNs may not develop and the liquidity of the ETNs may be limited, as we are not required to maintain any listing of the ETNs.

No Interest Payments from the ETNs : You may not receive any interest payments on the ETNs.

Restrictions on the Minimum Number of ETNs and Date Restrictions for Redemptions : You must redeem at least 50,000 ETNs of the same series at one time in order to exercise your right to redeem your ETNs on any redemption date. You may only redeem your ETNs on a redemption date if we receive a notice of redemption from you by certain dates and times as set forth in the pricing supplement.

END PRODUCT PAGES - DIRT

31

Table of Contents

PRODUCT PAGES - WEET

-Commodities -Sector-

http://ipathetn.com/product/WEET

[Header]

iPath ^® Pure Beta Grains ETN (WEET)

[Body]

The iPath ^® Pure Beta Grains ETN is designed to provide investors with exposure to the Barclays Commodity Index Grains & Oilseeds Pure Beta Total Return.

The Barclays Commodity Index Grains & Oilseeds Pure Beta Total Return (the “Index”) is a sub-Index of the Barclays Commodity Index Pure Beta Total Return and reflects the returns that are potentially available through an unleveraged investment in six futures contracts on grain and oilseed commodities traded on U.S. exchanges. For each commodity, the Index may roll into one of a number of futures contracts with varying expiration dates, as selected using the Barclays Pure Beta Series 2 Methodology.

[Tabs]

[Overview Tab]

Related Resources

(icon) Prospectus

(icon) Fact Sheet

(icon) iPath Commodity ETNs

(icon) The Basics of iPath Pure Beta Commodity ETNs

(icon) Periodic Returns Table

(icon) Premiums and Discounts

(icon) Index Components

(icon) IV/Index History

(icon) Indicative Value Information

Jump to: Profile  |  Correlations  |  Returns  |  Terms

Source: Barclays.

32

Table of Contents