| *      Confidential treatment has been requested for certain portions omitted      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act      of 1934, as amended. Confidential portions of this Exhibit have been      separately filed with the Securities and Exchange      Commission. |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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| 1. | The      parties adjust the quantity and price of supply for the third and fourth      quarters of 2008 under YGX0708100001 Contract and YGX0711150001-122      Contract as follows: |
|-----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Contract      No.        | Amount      of PrepaymentRMB                                   | 165mm,      125*125 mono-crystalline | 150mm,      125*125 mono-crystalline                           |
|--------------------------|----------------------------------------------------------------|--------------------------------------|----------------------------------------------------------------|
| Price(RMB) | Monthly      Supply amount(thousand      pieces) | Price(RMB)             | Monthly      Supply amount(thousand      pieces) |
| YGX0708100001            | ***                                                            | ***                                  | ***                                                            | *** | *** |
| YGX0711150001-122        | ***                                                            | ***                                  | ***                                                            | *** | *** |
|                     |                                                           | Total                                | ***      pieces/month                                          | Total | ***      pieces/month |

| 1) | Price.                                                                                                                                                                                              |
|-----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      |                                                                                                                                                                                                |
|      | The      unit price for 150, 125*125 mono-crystalline silicon wafers is *** (tax      included), while the unit price for 165mm, 125*125 mono-crystalline      silicon wafers is *** (taxincluded). |

| 2) | Quantity:                                                                                                                                                                            |
|-----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      |                                                                                                                                                                                 |
|      | Under      the YGX0708100001Contract, the monthly supply amount of 150mm, 125*125      mono-crystalline silicon wafers is *** pieces, while the monthly supply      amount of 165mm, |

| No.      36, Jiang Chang San Rd., Zhabei, Shanghai China 200436 |
|-----------------------------------------------------------------|
| TEL:      (86 21)60955859                                       | FAX(86      21)60955855 | WEBSITE:      www.jasolar.com |

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| *      Confidential treatment has been requested for certain portions omitted      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act      of 1934, as amended. Confidential portions of this Exhibit have been      separately filed with the Securities and Exchange      Commission. |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|    | 125*125      mono-crystalline silicon wafers is *** pieces, the amount of which shall      be supplied evenly. Under the YGX0711150001-122 Contract, the monthly      supply amount of 150mm, 125*125 mono-crystalline silicon wafers is ***      pieces, while the monthly supply amount of 165mm, 125*125 mono-crystalline      silicon wafers is *** pieces, the amount of which shall be supplied      evenly. In total, the aggregate supply amount of 165mm, 125*125      mono-crystalline silicon wafers and 150mm, 125*125 mono-crystalline      silicon wafers shall be *** and *** pieces,  respectively. |
|--------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3) | Deposit      and Prepayment:                                                                                                                                                                                                                                                                                                                                |
|-----------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
|      |                                                                                                                                                                                                                                                                                                                                                        |
|      | The      parties hereby acknowledges that, as of the date hereof, the balance of      deposit paid by Buyer to Seller under the YGX070810001 Contract and the      YGX0711150001-122 Contract are *** and ***, respectively.                                                                                                                                |
|      |                                                                                                                                                                                                                                                                                                                                                        |
| 4) | In      the event that the parties, through negotiation, reach an agreement to      adjust the purchase amount of mono-crystalline silicon wafers between the      two specifications, the conversion ratio of amount and price of 150mm,      125*125 mono-crystalline silicon wafers to 165mm, 125*125 mono-crystalline      silicon wafers shall be ***. |

| 2. | In      the event of price fluctuation exceeding ***% of the price of silicon      wafers under this Supplemental Agreement during the term hereof, either      party shall have the right to request the other party in writing to      conduct a negotiation on adjustment of price in the next month upon its      full performance of the quantity for the current month. The parties shall      agree on an adjusted price within *** business days and enter into a      supplemental agreement in writing as an attachment  hereto. |
|-----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 3. | The      thickness of silicon wafers provided in the YGX0708100001 Contract and the      YGX0711150001-122 Contract are 200+/-20μm      and 200+/-25μm,      respectively. Upon negotiation and agreement by the parties, thickness of      silicon wafers under the above two contracts shall be adjusted to      180+/-20μm,      which shall be applicable to the supply for the third and fourth quarters      of 2008 and supply of other terms under the two  contracts. |
|-----------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 4. | Matters      not provided herein shall be subject to provisions of the YGX0708100001      Contract and the YGX0711150001-122 Contract, while matters specified      herein shall be subject to this Supplemental  Agreement. |
|-----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 5. | This      Supplemental Agreement constitutes an integral part of the YGX0708100001      Contract and the YGX0711150001-122 Contract, and has the same legal effect      therewith. |
|-----------|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| 6. | This      Supplemental Agreement shall come into effect upon signature by the      parties in two counterparts, each of which shall be held by each      party. |
|-----------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|

| Buyer     | JingAo      Solar Co., Ltd | Seller    | Zhejiang      Yuhui Solar Energy Source Co. Ltd |
|-----------|----------------------------|-----------|-------------------------------------------------|
|      |                       |      |                                            |
| Signature |                       | Signature |                                            |

| No.      36, Jiang Chang San Rd., Zhabei, Shanghai China 200436 |
|-----------------------------------------------------------------|
| TEL:      (86 21)60955859                                       | FAX(86      21)60955855 | WEBSITE:      www.jasolar.com |

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| *      Confidential treatment has been requested for certain portions omitted      from this exhibit pursuant to Rule 24b-2 under the Securities Exchange Act      of 1934, as amended. Confidential portions of this Exhibit have been      separately filed with the Securities and Exchange      Commission. |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|

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|   |   |   |   |
|--------|--------|--------|--------|
| Date   |   | Date   |   |

| No.      36, Jiang Chang San Rd., Zhabei, Shanghai China 200436 |
|-----------------------------------------------------------------|
| TEL:      (86 21)60955859                                       | FAX(86      21)60955855 | WEBSITE:      www.jasolar.com |