REVOLVING LINE OF CREDIT NOTE
August 14, 2007
Not to Exceed $210,000 in Principal
For value received, the undersigned HAMBRECHT ASIA ACQUISITION CORP., a Delaware
corporation (“ Borrower ”), promises to pay, in lawful money of the United States, to the order of Robert Eu,
together with his successors and assigns (“ Holder ”), at such address as Holder may direct, the principal sum of
Two Hundred Ten Thousand Dollars ($210,000) (the “ Commitment Amount ”), or so much thereof as shall
have been advanced and shall remain unpaid hereunder, together with interest from date of disbursement at the
rate of 4% per annum (the “ Interest Rate ”). Interest shall be computed at the Interest Rate on the basis of the
actual number of days during which the principal balance is outstanding, divided by 365, which shall, for interest
computation purposes, be considered one year. Notwithstanding anything to the contrary expressed or implied
herein, all payments made by Borrower hereunder (including, without limitation, any prepayments) shall be
applied first to pay any fees or expense reimbursement then due Holder, second to accrued and unpaid interest
due under this Note and third to the reduction of principal due hereunder.
This Note is delivered pursuant to, and is subject to all of the terms and conditions of, that certain
Revolving Line of Credit Agreement dated August 14, 2007 (as from time to time amended, modified,
supplemented and restated, the “ Loan Agreement ”) among Borrower and Holder. Unless otherwise defined in
this Note, capitalized terms used in this Note shall have the meanings ascribed to them in the Loan Agreement,
and in the event of any conflict between the terms of this Note and the terms of the Loan Agreement, the terms of
the Loan Agreement shall govern.
Maturity. This Note shall mature and become due and payable on the Termination Date.
Prepayment. Borrower may prepay Loans at any time, and reborrow subject to the terms of the Loan