[*] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED
BY BRACKETS, HAS BEEN OMITTED FROM PUBLIC FILING PURSUANT TO A REQUEST FOR
CONFIDENTIAL TREATMENT SUBMITTED TO THE U.S. SECURITIES AND EXCHANGE
COMMISSION. THE OMITTED INFORMATION, WHICH HAS BEEN IDENTIFIED WITH THE
SYMBOL “[*],” HAS BEEN FILED SEPARATELY WITH THE U.S. SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
SECOND AMENDED & RESTATED SUPPLY AGREEMENT
This Second Amended & Restated Supply Agreement is entered into as of this 31 st day of March, 2010 (the “
Signature Date ”) between WEALTHY RISE INTERNATIONAL, LTD., a Hong Kong company (hereinafter
“ CUSTOMER ”) and HOKU MATERIALS, INC., a Delaware corporation (hereinafter “ HOKU ”). HOKU
and CUSTOMER are sometimes referred to in the singular as a “ Party ” or in the plural as the “ Parties ”.
Whereas, HOKU and CUSTOMER are parties to that certain Amended and Restated Supply Agreement dated
as of April 2, 2009 (the “ Prior Supply Agreement ”).
Whereas, HOKU and CUSTOMER desire to amend and restate the Prior Supply Agreement in its entirety as
set forth herein.
Whereas, HOKU desires to supply polysilicon to CUSTOMER for its general use beginning in calendar year
2011 for a continuous period of three years from the date of the first shipment.
Whereas, in exchange for HOKU’s agreement to allocate the supply of polysilicon, CUSTOMER desires to
provide HOKU with a firm order for polysilicon upon the terms and conditions provided herein.
NOW, THEREFORE, in furtherance of the foregoing Recitals and in consideration of the mutual covenants and
obligations set forth in this Agreement, the Parties hereby agree as follows:
1. Effectiveness. This Agreement shall become effective upon CUSTOMER’s initiation of remittance in
full to HOKU of the first Monthly Deposit (the “ Effective Date ”); provided, however, that