0001193125-06-171081 Sample Contracts

FORM OF POWERSHARES DB US DOLLAR INDEX [ ] FUND1 INITIAL PURCHASER AGREEMENT [l] SHARES

DB US Dollar Index Master Trust • August 11th, 2006 • New York

• Company
  DB US Dollar Index Master Trust
• Filed
  August 11th, 2006
• Jurisdiction
  New York

FORM OF POWERSHARES DB US DOLLAR INDEX [ ] FUND1 PARTICIPANT AGREEMENT

Fund Participant Agreement • August 11th, 2006 • DB US Dollar Index Master Trust • New York

• Contract Type
  Fund Participant Agreement
• Filed
  August 11th, 2006
• Company
  DB US Dollar Index Master Trust
• Jurisdiction
  New York

The undersigned, each a duly authorized officer of DB Commodity Services LLC, a Delaware limited liability company, the managing owner (the “Managing Owner”) of PowerShares DB US Dollar Index Trust (the “Trust”), a Delaware statutory trust with separate series, including PowerShares DB US Dollar Index [ ] Fund (the “Fund”), and pursuant to Section 13(d) of the PowerShares DB US Dollar Index [ ] Fund Participant Agreement (the “Agreement”), dated as of 200 , by and among the Managing Owner, the Fund and (the “Authorized Participant”), hereby certify that: