**Exhibit      10.5**

**Summary        of Guaranty Agreement of Maximu Amount entered into between BAK Internatiional        Limited (“BAK International”) and Shenzhen Branch, China Construction Bank        (“China Construction Bank”) on February 14, 2007.**

**Summary        of main contents:**

| · | Contract                number: bao 2006 Zong 1279042-1; |
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| · | As                guarantor, BAK International undertakes to assume joint and several                liabilities for the Company’s indebtedness towards China Construction Bank                under the Comprehensive Credit Facility Agreement of Maximum Amount                (No.:                Jie2006Zong1279042) (“Master Agreement”) and maximum amount secured is                RMB150 million. |
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| · | Secured                items include the loan principal, interest, penalty interest, breach                of                contract compensation and all the expenses incurred for China Construction                Bank to realize its creditor’s right under the Master Agreement                ; |
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| · | Guaranty                period: the period of guaranty shall be determined in accordance                with each                financing under the master agreement. The period of guaranty for                each                financing shall be the start date of each financing under the master                agreement and its supplementary agreement to the end of 2 years after                the                expiry of the performance period of the debt. In case that the extension                agreement for the debt is agreed by the Obligor and your bank, the                period                of guaranty shall end at the end of 2 years after the expiry of the                extended performance period of the debt. |
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**Headlines        of articles omitted: **

| · | Creditor’s                Right to be Secured |
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| · | Method                of Guaranty |
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| · | Signature                and Amendment of the Master Agreement |
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| · | Independency |
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| · | Undertakings |
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| · | Performance                of Obligation of Guaranty Before Expiry |
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| · | Transfer                of Amount Payable |
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| · | Engaging                Bank |
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| · | Miscellaneous |
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| · | Applicable                Law and Dispute Settlement |
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| · | Effectiveness |
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| · | Statement |
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