JO iPath Series B Bloomberg Coffee Subindex TR ETN

Prospectus dated August 31, 2010:

Prospectus Supplement dated May 27, 2011:

Index Supplement dated May 31, 2011:

Initial Level: 6,583.09

Barrier Level: 4,937.32 (75.00% of the hypothetical Initial Level set forth above, rounded to the nearest hundredth)

Upside Leverage Factor: 1.54

Market Disruption Events and Adjustments —The Final Valuation Date, the Maturity Date and the payment at maturity are subject to adjustment as described in the following sections of the prospectus supplement:

For a description of what constitutes a market disruption event with respect to the Index as well as the consequences of that market disruption event, see “Reference Assets—Indices—Market Disruption Events for Securities with the Reference Asset Comprised of an Index or Indices of Equity Securities”; and

For a description of further adjustments that may affect the Index, see “Reference Assets—Indices—Adjustments Relating to Securities with the Reference Asset Comprised of an Index”.

Exposure to the U.K. Equities of the Index —The return on the Notes is linked to the performance of the Index from the Initial Level to the Final Level, as described in this preliminary pricing supplement. The Index is a free float-adjusted, market capitalization-weighted index of the 100 largest U.K. companies (as determined by the index sponsor of the Index) traded on the London Stock Exchange. For additional information about the Index, see the information set forth under “Non Proprietary Indices—Equity Indices—FTSE ^® 100 Index” in the accompanying index supplement.

Material U.S. Federal Income Tax Considerations —The material tax consequences of your investment in the Notes are summarized below. The discussion below supplements the discussion under “Certain U.S. Federal Income Tax Considerations” in the accompanying prospectus supplement. As described in the prospectus supplement, this section applies to you only if you are a U.S. holder (as defined in the accompanying prospectus supplement) and you hold your Notes as capital assets for tax purposes and does not apply to you if you are a member of a class of holders subject to special rules or are otherwise excluded from the discussion in the prospectus supplement (for example, if you did not purchase your Notes in the initial issuance of the Notes).

“Risk Factors—Risks Relating to All Securities”;

“Risk Factors—Additional Risks Relating to Notes Which Are Not Characterized as Being Fully Principal Protected or Are Characterized as Being Partially Protected or Contingently Protected”;

“Risk Factors—Additional Risks Relating to Notes Which Pay No Interest”;

“Risk Factors—Additional Risks Relating to Securities with a Barrier Percentage or a Barrier Level”; and

“Risk Factors—Additional Risks Relating to Securities with Reference Assets That Are Equity Securities or Shares or Other Interests in Exchange-Traded Funds, That Contain Equity Securities or Shares or Other Interests in Exchange-Traded Funds or That Are Based in Part on Equity Securities or Shares or Other Interests in Exchange-Traded Funds.”

Your Investment May Result in a Loss; No Principal Protection —The Notes do not guarantee any return of principal. The return on the Notes at maturity is linked to the performance of the Index and will depend on whether, and the extent to which, the Index Return is positive or negative. If the Final Level of the Index is less than the Barrier Level, your Notes will be fully exposed to the decline in the Index from the Initial Level to the Final Level and you will lose some or all of your investment in the Notes. You may lose up to 100% of the principal amount of your Notes.

Credit of Issuer —The Notes are senior unsecured debt obligations of the issuer, Barclays Bank PLC and are not, either directly or indirectly, an obligation of any third party. Any payment to be made on the Notes depends on the ability of Barclays Bank PLC to satisfy its obligations as they come due and is not guaranteed by any third party. 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 Notes.

No Interest or Dividend Payments or Voting Rights —As a holder of the Notes, you will not receive interest payments, and you will not have voting rights or rights to receive cash dividends or other distributions or other rights that holders of securities composing the Index would have.

The Payment at Maturity of Your Notes is Not Based on the Level of the Index at Any Time Other than the Final Level on the Final Valuation Date —The Final Level of the Index and the Index Return will be based solely on the Index Closing Level on the Final Valuation Date. Therefore, if the level of the Index dropped precipitously on the Final Valuation Date, the payment at maturity, if any, that you will receive for your Notes may be significantly less than it would otherwise have been had the payment at maturity been linked to the level of the Index prior to such drop.

Non-U.S. Securities Markets Risk —The stocks comprising the Index are issued by foreign companies in foreign securities markets. These stocks may be more volatile and may be subject to different political, market, economic, exchange rate, regulatory and other risks which may have a negative impact on the performance of the financial products linked to the Index, which may have an adverse effect on the Notes. Also, the public availability of information concerning the issuers of the stocks comprising the Index will vary depending on their home jurisdiction and the reporting requirements imposed by their respective regulators. In addition, the issuers of such component stocks may be subject to accounting, auditing and financial reporting standards and requirement that differ from those applicable to United States reporting companies.

No Direct Exposure to Fluctuations in Foreign Exchange Rates —The value of your Notes will not be adjusted for exchange rate fluctuations between the U.S. dollar and the currency in which the stocks composing the Index are denominated, although any currency fluctuations could affect the performance of the Index. Therefore, if the applicable currency appreciates or depreciates relative to the U.S. dollar over the term of the Notes, you will not receive any additional payment or incur any reduction in your payment at maturity.

The Estimated Value of Your Notes Might be Lower if Such Estimated Value Were Based on the Levels at Which Our Debt Securities Trade in the Secondary Market . The estimated value of your Notes on the Initial Valuation Date is based on a number of variables, including our internal funding rates. Our internal funding rates may vary from the levels at which our benchmark debt securities trade in the secondary market. As a result of this difference, the estimated values referenced above may be lower if such estimated values were based on the levels at which our benchmark debt securities trade in the secondary market.

The Estimated Value of Your Notes is Expected to be Lower Than the Initial Issue Price of Your Notes . The estimated value of your Notes on the Initial Valuation Date is expected to be lower, and may be significantly lower, than the initial issue price of your Notes. The difference between the initial issue price of your Notes and the estimated value of the Notes is expected as a result of certain factors, such as any sales commissions expected to be paid to Barclays Capital Inc. or another affiliate of ours, any selling concessions, discounts, commissions or fees expected to be allowed or paid to non-affiliated intermediaries, the estimated profit that we or any of our affiliates expect to earn in connection with structuring the Notes, the estimated cost which we may incur in hedging our obligations under the Notes, and estimated development and other costs which we may incur in connection with the Notes.

The Estimated Value of the Notes is Based on Our Internal Pricing Models, Which May Prove to be Inaccurate and May be Different from the Pricing Models of Other Financial Institutions. The estimated value of your Notes on the Initial Valuation Date is based on our internal pricing models, which take into account a number of variables and are based on a number of subjective assumptions, which may or may not materialize. These variables and assumptions are not evaluated or verified on an independent basis. Further, our pricing models may be different from other financial institutions’ pricing models and the methodologies used by us to estimate the value of the Notes may not be consistent with those of other financial institutions which may be purchasers or sellers of Notes in the secondary market. As a result, the secondary market price of your Notes may be materially different from the estimated value of the Notes determined by reference to our internal pricing models.

The Estimated Value of Your Notes Is Not a Prediction of the Prices at Which You May Sell Your Notes in the Secondary Market, if any, and Such Secondary Market Prices, If Any, Will Likely be Lower Than the Initial Issue Price of Your Notes and Maybe Lower Than the Estimated Value of Your Notes. The estimated value of the Notes will not be a prediction of the prices at which Barclays Capital Inc., other affiliates of ours or third parties may be willing to purchase the Notes from you in secondary market transactions (if they are willing to purchase, which they are not obligated to do). The price at which you may be able to sell your Notes in the secondary market at any time will be influenced by many factors that cannot be predicted, such as market conditions, and any bid and ask spread for similar sized trades, and may be substantially less than our estimated value of the Notes. Further, as secondary market prices of your Notes take into account the levels at which our debt securities trade in the secondary market, and do not take into account our various costs related to the Notes such as fees, commissions, discounts, and the costs of hedging our obligations under the Notes, secondary market prices of your Notes will likely be lower than the initial issue price of your Notes. As a result, the price, at which Barclays Capital Inc., other affiliates of ours or third parties may be willing to purchase the Notes from you in secondary market transactions, if any, will likely be lower than the price you paid for your Notes, and any sale prior to the maturity date could result in a substantial loss to you.

The Temporary Price at Which We May Initially Buy The Notes in the Secondary Market And the Value We May Initially Use for Customer Account Statements, If We Provide Any Customer Account Statements At All, May Not Be Indicative of Future Prices of Your Notes. Assuming that all relevant factors remain constant after the Initial Valuation Date, the price at which Barclays Capital Inc. may initially buy or sell the Notes in the secondary market (if Barclays Capital Inc. makes a market in the Notes, which it is not obligated to do) and the value that we may initially use for customer account statements, if we provide any customer account statements at all, may exceed our estimated value of the Notes on the Initial Valuation Date, as well as the secondary market value of the Notes, for a temporary period after the initial issue date of the Notes. The price at which Barclays Capital Inc. may initially buy or sell the Notes in the secondary market and the value that we may initially use for customer account statements may not be indicative of future prices of your Notes.

We and Our Affiliates May Engage in Various Activities or Make Determinations That Could Materially Affect Your Notes in Various Ways and Create Conflicts of Interest. We and our affiliates establish the offering price of the Notes for initial sale to the public, and the offering price is not based upon any independent verification or valuation. Additionally, the role played by Barclays Capital Inc., as a dealer in the Notes, could present it with significant conflicts of interest with the role of Barclays Bank PLC, as issuer of the Notes. For example, Barclays Capital Inc. or its representatives may derive compensation or financial benefit from the distribution of the Notes and such compensation or financial benefit may serve as an incentive to sell these Notes instead of other investments. We may pay dealer compensation to any of our affiliates acting as agents or dealers in connection with the distribution of the Notes. Furthermore, we and our affiliates make markets in and trade various financial instruments or products for their own accounts and for the account of their clients and otherwise provide investment banking and other financial services with respect to these financial instruments and products. These financial instruments and products may include securities, instruments or assets that may serve as the underliers, basket underliers or constituents of the underliers of the Notes. Such market making, trading activities, other investment banking and financial services may negatively impact the value of the Notes. Furthermore, in any such market making, trading activities, and other services, we or our affiliates may take positions or take actions that are inconsistent with, or adverse to, the investment objectives of the holders of the Notes. We and our affiliates have no obligation to take the needs of any buyer, seller or holder of the Notes into account in conducting these activities.

Lack of Liquidity —The Notes will not be listed on any securities exchange. Barclays Capital Inc. and other affiliates of Barclays Bank PLC intend to make a secondary market for the Notes but are not required to do so, and may discontinue any such secondary market making at any time, without notice. Barclays Capital Inc. may at any time hold unsold inventory, which may inhibit the development of a secondary market for the Notes. Even if there is a secondary market, it may not provide enough liquidity to allow you to trade or sell the Notes easily. Because other dealers are not likely to make a secondary market for the Notes, the price at which you may be able to trade your Notes is likely to depend on the price, if any, at which Barclays Capital Inc. and other affiliates of Barclays Bank PLC are willing to buy the Notes. The Notes are not designed to be short-term trading instruments. Accordingly, you should be able and willing to hold your Notes to maturity.

Taxes —The U.S. federal income tax treatment of the Notes is uncertain and the Internal Revenue Service could assert that the Notes should be taxed in a manner that is different than described above. As discussed further in the accompanying

prospectus supplement, the Internal Revenue Service issued a notice in 2007 indicating that it and the Treasury Department are actively considering whether, among other issues, you should be required to accrue interest over the term of an instrument such as the Notes and whether all or part of the gain you may recognize upon the sale or maturity of an instrument such as the Notes should be treated as ordinary income. Similarly, the Internal Revenue Service and the Treasury Department have current projects open with regard to the tax treatment of pre-paid forward contracts and contingent notional principal contracts. While it is impossible to anticipate how any ultimate guidance would affect the tax treatment of instruments such as the Notes (and while any such guidance may be issued on a prospective basis only), such guidance could be applied retroactively and could in any case increase the likelihood that you will be required to accrue income over the term of an instrument such as the Notes even though you will not receive any payments with respect to the Notes until maturity. The outcome of this process is uncertain. You should consult your tax advisor as to the possible alternative treatments in respect of the Notes.

Many Economic and Market Factors Will Impact the Value of the Notes —In addition to the level of the Index, the value of the Notes will be affected by a number of economic and market factors that may either offset or magnify each other, including:

the expected volatility of the Index;

the time to maturity of the Notes;

the dividend rate on the common stocks underlying the Index;

interest and yield rates in the market generally;

a variety of economic, financial, political, regulatory or judicial events; and

our creditworthiness, including actual or anticipated downgrades in our credit ratings.