Exhibit 10.39



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

The Purchase Contract No. 06.7IC015

for the software of FL 1500 Wind Turbine

This
Purchase Contract is signed between

Sinovel Wind Co., Ltd (hereinafter referred to as Buyer)

and

Windtec Systemtechnik Handels GmbH in Austria
(hereinafter referred to as Seller) in a friendly way.

Buyer and Seller agreed as follows:



|1. | Scope of Supply:
|-- | ----------------

[**] sets of software comprising:



| |  | FL1500 software program for pitch converter, yaw converter, IGBT converter and PLCs; according to Technical Specification of FL1500 Wind Turbine.
|- |  | -------------------------------------------------------------------------------------------------------------------------------------------------



|2. | Prices:
|-- | -------

The delivery price is CIF Dalian [**] EURO per set. The total
contract price is CIF Dalian [**] EURO.



|3. | Conditions:
|-- | -----------

General Terms of Delivery issued by the Austrian Electrical
and Electronics Industry Association, Ed. Jan. 2002



|4. | Warranty:
|-- | ---------

Warranty period is 12 months after wind turbine has arrived on
the wind farm and finished the commissioning, or 18 months after the delivery (shippment-date), whichever is earlier.



|5. | Delivery:
|-- | ---------

The software of PLC and converter will be sent out by 1 off CD
and/or email per batch, as a valid licence for the number of sets indicated therein. The delivery will be made in batches as per preliminary schedule below (shippment date):



|         |  |            |  |            |  |             |  |             |  |             |  |            
|-------- |  | ---------- |  | ---------- |  | ----------- |  | ----------- |  | ----------- |  | -----------
|Month    |  | EoDec.2006 |  | 5.Jan.2007 |  | 10.Jan.2007 |  | 15.Jan.2007 |  | 01.Feb.2007 |  | 10.Feb.2007
|Quantity |  | [**] sets  |  | [**] sets  |  | [**] sets   |  | [**] sets   |  | [**] sets   |  | [**] sets  



|         |  |             |  |            |  |             |  |             |  |             |  |            
|-------- |  | ----------- |  | ---------- |  | ----------- |  | ----------- |  | ----------- |  | -----------
|Month    |  | 20.Feb.2007 |  | 5.Mar.2007 |  | 20.Mar.2007 |  | 20.Apr.2007 |  | 20.Mai.2007 |  | 20.Jun.2007
|Quantity |  | [**] sets   |  | [**] sets  |  | [**] sets   |  | [**] sets   |  | [**] sets   |  | [**] sets  



---

|         |  |             |  |             |  |             |  |             |  |             |  |            
|-------- |  | ----------- |  | ----------- |  | ----------- |  | ----------- |  | ----------- |  | -----------
|Month    |  | 20.Jul.2007 |  | 20.Aug.2007 |  | 20.Sep.2007 |  | 20.Oct.2007 |  | 19.Nov.2007 |  | 20.Dez.2007
|Quantity |  | [**] sets   |  | [**] sets   |  | [**] sets   |  | [**] sets   |  | [**] sets   |  | [**] sets  



|6. | Payments:
|-- | ---------

95% of each shipment value will be paid by T/T within 14days
after each shipment date against receipt of the invoice;

5% of each shipment value, as the retention bond, shall be paid by T/T within 14 days after the
expiry of the warranty period.



|7. | Taxes:
|-- | ------

Note: Any applicable withholding tax according to the
Austrian-Chinese-Double-Tax-Treaty will be borne by Windtec in Austria.



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

|         |  |                                                                             
|-------- |  | ----------------------------------------------------------------------------
|         | 
|Address: |  | 19/F, Culture Building, No. 59, Zhongguancun Street, Haidian, Beijing, China

|           |  |       
|---------- |  | ------
|Post code: |  | 100872

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

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

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

|              |  |            |  | 
|------------- |  | ---------- |  | 
|              |  |           
|Signing date: |  | 2006.12.15 |  | 



|                |  |                                                    
|--------------- |  | ---------------------------------------------------
|Buyers agency: |  | 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: |  | 2006.12.15



---

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

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

|     |  |                    
|---- |  | -------------------
|Fax: |  | (0043)463-44460444 
|Tel: |  | (0043)463-444604-11

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

|              |  |              
|------------- |  | -------------
|              | 
|Signing date: |  | 11. Dec. 2006