Exhibit 99.6
PARTICLE DRILLING TECHNOLOGIES, INC.
NOMINEE HOLDER CERTIFICATION
The undersigned, a broker, custodian bank, trustee, depositary or other nominee holder of rights (the “Rights”) to purchase shares of common stock (“Common Stock”) of Particle Drilling Technologies, Inc. (“Particle Drilling”) pursuant to the rights offering described and provided for in the Particle Drilling prospectus supplement, dated March 18, 2008, and the related prospectus (collectively, the “Prospectus”), hereby certifies to Particle Drilling, Computershare Trust Company, N.A., as subscription agent for the Rights Offering, and to Computershare, Inc., as information agent for the Rights Offering, that (1) the undersigned has exercised, on behalf of the beneficial owners thereof (which may include the undersigned), the number of Rights specified below pursuant to the basic subscription privilege (as defined in the Prospectus), and on behalf of beneficial owners of Rights who have subscribed for the purchase of additional shares of Common Stock pursuant to the over-subscription privilege (as defined in the Prospectus), listing separately below each such exercised basic subscription privilege and the corresponding over-subscription privilege (without identifying any such beneficial owner), and (2) each such beneficial owner’s basic subscription privilege has been exercised in full:
Number of Shares of Common Stock Owned on the Record Date | | Rights Exercised Pursuant to Basic Subscription Privilege | | Number of Shares Subscribed For Pursuant to Over-Subscription Privilege | |
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Depository Trust Company (“DTC”) | |
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