PROMISSORY NOTE

1.

FOR VALUE RECEIVED, Prime Sun Power Inc. , a Nevada corporation (the "Borrower"), hereby promises to pay to the order of Rudana Investment Group AG ("Lender") , at such time, place and in such manner as Lender may specify in writing, the principal amount of [___________] (US$_[___]) (the "Principal") pursuant to the terms and conditions specified herein (this “Note”). The Borrower shall pay interest on the outstanding principal of this Note at the annual rate of [__]% per annum, calculated based on a year of 365 days and actual days elapsed (the “Interest”).

2.

The Borrower hereby promises to pay to the order of the Lender the Principal and all Interest due thereon within thirty calendar (30) days upon delivery to the Company of written demand by the Lender (the “Due Date”), at such place and in such manner as Lender may specify in writing.

3.

Any and all fees, costs, expenses and disbursements charged by financial institutions with respect to wire transfer or other transmittal charges incurred in connection with delivery of the Principal from the Lender to the Borrower shall be deemed to have been received by the Borrower from the Lender and all such amounts shall be included in the calculation of Principal hereunder.

4.

This Note shall not be transferable by Borrower and the Borrower may not assign, transfer or sell all or a portion of its rights and interests to and under this Note to any persons and any such purported transfer shall be void ab initio. The Lender may transfer and assign this Note at its sole discretion.

5.

The failure at any time of the Lender to exercise any of its options or any other rights hereunder shall not constitute a waiver thereof, nor shall it be a bar to the exercise of any of its options or rights at a later date. All rights and remedies of the Lender shall be cumulative and may be pursued singly, successively or together, at the option of the Lender. The acceptance by the Lender of any partial payment shall not constitute a waiver of any default or of any of the Lender's rights under this Note. No waiver of any of its rights hereunder, and no modification or amendment of this Note, shall be deemed to be made by the Lender unless the same shall be in writing, duly signed on behalf of the Lender; and each such waiver shall apply only with respect to the specific instance involved, and shall in no way impair the rights of the Lender in any other respect at any other time.

6.

Any term or condition of this Note may be waived at any time by the party that is entitled to the benefit thereof, but no such waiver shall be effective unless set forth in a written instrument duly executed by or on behalf of the party waiving such term or condition.

7.

The Borrower represents and warrants that this Note is the valid and binding obligation of the Borrower, fully enforceable in accordance with its terms. The execution and delivery by the Borrower of this Note, the performance by the Borrower of its obligations hereunder and the consummation of the transactions contemplated hereby and thereby does not and will not: (a) conflict with or result in a violation or breach of any of the terms, conditions or provisions of the Borrower’s charter instruments; (b) conflict with or result in a violation or breach of any term or provision of any law or order applicable to the Borrower or any of its assets and properties; or (c) (i) conflict with or result in a violation or breach of, or (ii) result in or give to any person any rights or create any additional or increased liability of the Borrower under or create or impose any lien upon, the Borrower or any of its assets and properties under, any contract or permit to which the Borrower is a party or by which its assets and properties are bound.

8.

If any provision of this Note is held to be illegal, invalid or unenforceable under any present or future Law, and if the rights or obligations of any party hereto under this Note will not be materially and adversely affected thereby, (i) such provision will be fully severable; (ii) this Note will be construed and enforced as if such illegal, invalid or unenforceable provision had never comprised a part hereof; (iii) the remaining provisions of this Note will remain in full force and effect and will not be affected by the illegal, invalid or unenforceable provision or by its severance here from; and (iv) in lieu of such illegal, invalid or unenforceable provision, there will be added automatically as a part of this Note a legal, valid and enforceable provision as similar in terms to such illegal, invalid or unenforceable provision as may be possible.

9.

Any notice, authorization, request or demand required or permitted to be given hereunder shall be in writing and shall be deemed to have been duly given two days after it is sent by an internationally recognized delivery service to the address of record of