FWP 1 dfwp.htm FREE WRITING PROSPECTUS-IPATH PRELAUNCH EMAIL INST Free Writing prospectus-iPath PreLaunch Email INST

Free Writing Prospectus

Filed Pursuant to Rule 433

Registration No. 333-145845

June 19, 2008

Global Carbon & Commodities ETN PRE-Launch Email_INST version

SUBJECT LINE - Coming Soon: New iPath ETNs from Barclays

LOGO

The following new iPath Exchange Traded Notes (ETNs) are expected to start trading on the NYSE Arca stock exchange on or about June 25, 2008.

iPath® Global Carbon ETN (GRN)

Sector Based Commodities

iPath® Dow Jones-AIG Precious Metals Total Return Sub-IndexSM ETN (JJP)

iPath® Dow Jones-AIG Softs Total Return Sub-IndexSM ETN (JJS)

Sub-Sector Commodities: Softs

iPath® Dow Jones-AIG Cocoa Total Return Sub-IndexSM ETN (NIB)

iPath® Dow Jones-AIG Coffee Total Return Sub-IndexSM ETN (JO)

iPath® Dow Jones-AIG Cotton Total Return Sub-IndexSM ETN (BAL)

iPath® Dow Jones-AIG Sugar Total Return Sub-IndexSM ETN (SSG)

Sub-Sector Commodities: Industrial Metals

iPath® Dow Jones-AIG Aluminum Total Return Sub-IndexSM ETN (JJU)

iPath® Dow Jones-AIG Lead Total Return Sub-IndexSM ETN (LD)

iPath® Dow Jones-AIG Tin Total Return Sub-IndexSM ETN (JJT)

Sub-Sector Commodities: Precious Metals

iPath® Dow Jones-AIG Platinum Total Return Sub-IndexSM ETN (PGM)

Click here for the preliminary pricing supplements.

For more information on these new iPath® ETNs, and all current commodity offerings, please visit www.iPathETN.com or contact Joe Wraga at 415-402-4931. Joe is a representative of Barclays Global Investors Services.

Find your iPath

1-877-76-iPATH

www.iPathETN.com

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An investment in iPath ETNs involves risks, including possible loss of principal. For a description of the main risks see “Risk Factors” in the applicable prospectus.

Barclays Bank PLC has filed a registration statement (including a prospectus) with the SEC for the offering to which this communication relates. Before you invest, you should read the prospectus and other documents Barclays Bank PLC has filed with the SEC for more complete information about the issuer and this offering. You may get these documents for free by visiting www.iPathETN.com or EDGAR on the SEC website at www.sec.gov. Alternatively, Barclays Bank PLC will arrange for Barclays Capital Inc. to send you the prospectus if you request it by calling toll-free 1-877-76-iPATH, or you may request a copy from any other dealer participating in the offering.

Barclays Global Investors Services, a subsidiary of Barclays Global Investors, N.A. (“BGINA”), assists in the promotion of the Securities. Barclays Global Investors, N.A. and Barclays Capital Inc. (“BCI”) are affiliates of Barclays Bank PLC.

iPath ETNs (the “Securities”) are unsecured obligations of Barclays Bank PLC and are not secured debt. The Securities are riskier than ordinary unsecured debt securities and have no principal protection. Risks of investing in the Securities include limited portfolio diversification, trade price fluctuations, uncertain principal repayment, and illiquidity. Investing in the Securities is not equivalent to direct investment in index or index components. The investor fee will reduce the amount of your return at maturity or on redemption, and as a result you may receive less than the principal amount of your investment at maturity or upon redemption of your Securities even if the value of the relevant index has increased. An investment in iPath ETNs may not be suitable for all investors.

The Securities may be sold throughout the day on the exchange through any brokerage account. There are restrictions on the minimum number of Securities you may redeem directly with the issuer as specified in the applicable prospectus. Commissions may apply and there are tax consequences in the event of sale, redemption or maturity of Securities. Sales in the secondary market may result in significant losses.

An investment in iPath ETNs linked to the performance of the Barclays Capital Global Carbon Index Total ReturnTM is subject to risks associated with fluctuations, particularly a decline, in the performance of the index caused by unpredictable volatility and movement in the prices of the index components. Trading in futures contracts on carbon emissions commodities, including trading in the index components, is speculative and can be extremely volatile. The commodity futures markets are subject to temporary distortions or other disruptions due to various factors, including the lack of liquidity in the markets, the participation of speculators and government regulation and intervention. Market prices of the index components may fluctuate rapidly based on numerous factors including but not limited to changes in supply and demand, domestic and foreign political or government actions and technological developments. These factors could adversely affect the value of the Index and, therefore, the value of your Securities.

The index components for iPath ETNs linked to commodities indexes are concentrated in the commodities sector. The market value of the Securities may be influenced by many unpredictable factors, including, where applicable, highly volatile commodities prices, changes in supply and demand relationships; weather; agriculture; trade; pestilence; changes in interest rates; and monetary and other governmental policies, action and inaction. Index components that track the performance of a single commodity, or index components concentrated in a single sector, are speculative and may typically exhibit higher volatility. The current or “spot” prices of the underlying physical commodities may also affect, in a volatile and inconsistent manner, the prices of futures contracts in respect of the relevant commodity. These factors may affect the value of the index and the value of your Securities in varying ways.

In addition to factors affecting commodities generally, index components composed of futures contracts on industrial metals or energy-related commodities may be subject to additional factors specific to industrial metals or energy-related commodities that might cause price volatility. These may include changes in the level of industrial or commercial activity using industrial metals or with


high levels of energy demand; the availability and price of substitutes such as man-made or synthetic substitutes or alternative sources of energy; disruptions in the supply chain; adjustments to inventory; variations in production costs; costs associated with regulatory compliance, including environmental regulations; and changes in industrial, government and consumer demand, both in individual consuming nations and internationally. Index components composed of futures contracts on agricultural products may be subject to additional factors specific to agricultural products that might cause price volatility. These may include weather conditions, including floods, drought and freezing conditions; changes in government policies; planting decisions; and changes in demand for agricultural products, both with end users and as inputs into various industries. Index components composed of futures contracts on precious metals may be subject to additional factors specific to precious metals that might cause price volatility. These may include disruptions in the supply chain, variations in production costs, costs associated with regulatory compliance, including environmental regulations, changes in industrial, government and consumer demand, and in the case of gold and silver, precious metal leasing rates, currency exchange rates, the level of economic growth and inflation and the degree to which consumers, governments, corporate and financial institutions hold physical gold or silver as a safe haven asset (hoarding) which may be caused by a banking crisis/recovery, a rapid change in the value of other assets (both financial and physical) or changes in the level of geopolitical tension.

“Barclays Capital Global Carbon IndexTM” and “Barclays Capital Global Carbon Index Total ReturnTM” are trademarks of Barclays Bank PLC and have been licensed for use by Barclays Capital in connection with the calculation of the Index.

“Dow Jones®”, “AIG®”, “Dow Jones-AIG Commodity IndexSM”, “DJ-AIGCISM”, “Dow Jones-AIG Commodity Index Total ReturnSM”, “Dow Jones-AIG Agriculture Total Return Sub-IndexSM”, “Dow Jones-AIG Aluminum Total Return Sub-IndexSM”, “Dow Jones-AIG Cocoa Total Return Sub-IndexSM”, “Dow Jones-AIG Coffee Total Return Sub-IndexSM”, “Dow Jones-AIG Copper Total Return Sub-IndexSM”, “Dow Jones-AIG Cotton Total Return Sub-IndexSM”, “Dow Jones-AIG Energy Total Return Sub-IndexSM”, “Dow Jones-AIG Grains Total Return Sub-IndexSM”, “Dow Jones-AIG Industrial Metals Total Return Sub-IndexSM”, “Dow Jones-AIG Lead Total Return Sub-IndexSM”, “Dow Jones-AIG Livestock Total Return Sub-IndexSM”, “Dow Jones-AIG Natural Gas Total Return Sub-IndexSM”, “Dow Jones-AIG Nickel Total Return Sub-IndexSM”, “Dow Jones-AIG Platinum Total Return Sub-IndexSM”, “Dow Jones-AIG Precious Metals Total Return Sub-IndexSM”, “Dow Jones-AIG Softs Total Return Sub-IndexSM”, “Dow Jones-AIG Sugar Total Return Sub-IndexSM” and “Dow Jones-AIG Tin Total Return Sub-IndexSM” are registered trademarks or servicemarks of Dow Jones & Company, Inc. (“Dow Jones”), and American International Group, Inc. (“AIG”), as the case may be, and have been licensed for use for certain purposes by Barclays Bank PLC for the Securities. The Securities based on the Dow Jones–AIG Commodity Index Total ReturnSM are not sponsored, endorsed, sold or promoted by Dow Jones, AIG Financial Products Corp. (“AIG-FP”), AIG, or any of their respective subsidiaries or affiliates and none of Dow Jones, AIG-FP, AIG, or any of their respective subsidiaries or affiliates makes any representation regarding the advisability of investing in such Securities.

© 2008 BGINA. All rights reserved. iPath, iPath ETNs and the iPath logo are registered trademarks of Barclays Bank PLC. All other trademarks, servicemarks or registered trademarks are the property, and used with the permission, of their respective owners. 7036-iP-0608

Barclays Global Investors

400 Howard Street

San Francisco, CA 94105