Exhibit 10.41



|                                                                                                                            
|----------------------------------------------------------------------------------------------------------------------------
|Confidential Materials omitted and filed separately with the Securities and Exchange Commission. Asterisks denote omissions.

Contract Amendment to the Purchase Contract No.

06.7IC015

for the software of

FL 1500 Wind Turbine

This contract is
made according to the purchase contract for the software of FL1500 WT.

This contract is made and amended according to the delivery quantities for the
software of electrical system signed between Sinovel Wind Co., Ltd and Windtec Systemtechnik Handels GmbH in 2007.

Apart from the following amendment, all
other terms and conditions remain the same as what are stated in the original contract.

Quantity: Purchase another [**] sets of software on the basis of
the original purchasing quantity [**] sets, the unit price of each set remains unchanged.

Delivery: The delivery time of the original [**] sets remains
unchanged; the delivery time for additional [**] sets will be made according to the delivery time (FOB) as follows:



| |  |             |  |                 |  | 
| |  | ----------- |  | --------------- |  | 
| |  | FOB date    |  | Quantity (Sets) |  | 
| |  | Jul 20,2007 |  | [**]            |  | 
| |  | Aug 20,2007 |  | [**]            |  | 
| |  | Sep 20,2007 |  | [**]            |  | 
| |  | Oct 20,2007 |  | [**]            |  | 
| |  | Nov 20,2007 |  | [**]            |  | 
| |  | Dez 20,2007 |  | [**]            |  | 
| |  | Total       |  | [**]            |  | 



---

|       |  |                       |  | 
|------ |  | --------------------- |  | 
|Buyer: |  | Sinovel Wind Co., Ltd

|          |  |                                                                        |  | 
|--------- |  | ---------------------------------------------------------------------- |  | 
|          | 
|Address:  |  | Culture Building ,No.59, Zhongguancun Street, Haidian, Beijing, China,
|Postcode: |  | 100872                                                                

|     |  |                                               |  | 
|---- |  | --------------------------------------------- |  | 
|Fax: |  | (0086) 10-82500072    Tel: (0086) 10-62515566

|                           |  |                 |  |  |  | 
|-------------------------- |  | --------------- |  |  |  | 
|                           |  |                
|Authorized representative: |  | /s/ [Illegible] |  | 
|                           |  | (Signature)     |  | 

|              |  |            |  |  |  | 
|------------- |  | ---------- |  |  |  | 
|              |  |           
|Signing date: |  | 2007.03.06 |  | 



|               |  |                                                     |  | 
|-------------- |  | --------------------------------------------------- |  | 
|Buyers Agent: |  | Dalian Huarui Heavy Industry International Co., Ltd

|         |  |                                                                       |  | 
|-------- |  | --------------------------------------------------------------------- |  | 
|         | 
|Address: |  | 12/F Huarui Building, No. 169, Bayi Road, Xigang Dist., Dalian, China

|     |  |                                               |  | 
|---- |  | --------------------------------------------- |  | 
|Fax: |  | (0086)411-86852398    Tel: (0086)411-86852376

|                           |  |                 |  |  |  | 
|-------------------------- |  | --------------- |  |  |  | 
|                           |  |                
|Authorized representative: |  | /s/ [Illegible] |  | 
|                           |  | (Signature)     |  | 

|              |  |  |  |  |  | 
|------------- |  |  |  |  |  | 
|              |  | 
|Signing date: |  |  |  | 



|        |  |                                    |  | 
|------- |  | ---------------------------------- |  | 
|Seller: |  | Windtec Systemtechnik Handels GmbH

|         |  |                                           |  | 
|-------- |  | ----------------------------------------- |  | 
|         | 
|Address: |  | Schleppeplatz 5, 9020 Klagenfurt, Austria

|     |  |                                              |  | 
|---- |  | -------------------------------------------- |  | 
|Fax: |  | (0043)463-4446044    Tel: (0043)463-444604-0

|                           |  |                 |  |  |  | 
|-------------------------- |  | --------------- |  |  |  | 
|                           |  |                
|Authorized representative: |  | /s/ [Illegible] |  | 
|                           |  | (Signature)     |  | 

|              |  |                 |  | 
|------------- |  | --------------- |  | 
|              | 
|Signing date: |  | Feb. 14th, 2007