Exhibit 4.99

Contract No. 2010033

Yunnan Nujiang Grid Co., Ltd.

and

Yunnan Minfa Group Fugong Xineng Power DevelopmentCo., Ltd.

Power Purchase and Sale Contract

Buyer:Yunnan Nujiang Grid Co.,
Ltd.

Seller:Yunnan Minfa Group Fugong
Xineng Power Development Co., Ltd.

Place of Execution:Liuku Town, Lushui
County of Nujiang Prefecture

Date of Execution:1 January 2010

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|                                                                                             |  |                                                                     
|-------------------------------------------------------------------------------------------- |  | --------------------------------------------------------------------
|Buyer                                                                                        |  | Seller                                                              
|                                                                                             |  |                                                                     
|Name: Yunnan Nujiang Grid Co., Ltd.                                                          |  | Name: Yunnan Minfa Group Fugong Xineng Power Development Co., Ltd.  
|                                                                                             |  |                                                                     
|Legal Address: No.127 South Xiangyang Road, Liuku Town, Lushui County
 of Nujiang Prefecture |  | Legal Address: Latudi Power Station of Fugong County                
|                                                                                             |  |                                                                     
|Legal Representative (person in charge): Yang Yong                                           |  | Legal Representative (person in charge): Zhang Zimin                
|                                                                                             |  |                                                                     
|Authorized Representative: Cai Xianglong                                                     |  | Authorized Representative:                                          
|                                                                                             |  |                                                                     
|Tel No.: 0886-3630727                                                                        |  | Tel No.: 0886-3411757                                               
|                                                                                             |  |                                                                     
|Fax No.: 0886-3630727                                                                        |  | Fax No.: 0886-3711757                                               
|                                                                                             |  |                                                                     
|Postal Code: 673100                                                                          |  | Postal Code: 673400                                                 
|                                                                                             |  |                                                                     
|Account Bank: Business branch of Agricultural Bank of China, Nujiang
 Prefecture             |  | Account Bank: Fugong County sub-branch of Agricultural Bank of China
|                                                                                             |  |                                                                     
|Account Number: 150101040000816                                                              |  | Account Number: 1511010400003512                                    
|                                                                                             |  |                                                                     
|Industrial and Commercial Registration No.: 5333001000288                                    |  | Industrial and Commercial Registration No.: 533323100000145         
|                                                                                             |  |                                                                     
|Tax Registration No.: Dian Guo Shui Zi 5333231709864383                                      |  | Tax Registration No.: 53332376042165                                

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To expressly define the rights and obligations under the power sale and
purchase transaction between Yunnan Nujiang Grid Co., Ltd. (hereinafter the Buyer) and Yunnan Minfa Group Fugong
Xineng Power Development Co., Ltd. (hereinafter the Seller), and in accordance with the Contract Law of the
Peoples Republic of China, the Power Law of the Peoples Republic of China,
the State Electricity Regulatory Commissions Power Purchase and Sale Contract,
Yunnan Province Power Supply and Use Regulations, the Measures of Yunnan
Nujiang Grid Co., Ltd. for the Management of the Connection of Newly Established
Power Plants to the Grid, and other ancillary laws and regulations, and in
consideration of the actual conditions of Yunnan grid and power market, the
Buyer and the Seller have, through consultations, entered into this Contract.

|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|--- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------- | --------------------------------------------------------
|1   | Power Purchase Principles                                                                                                                                                                                                                                                                                                                                                                                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|1.1 | The Buyer shall purchase the on-grid electric power generated by the
 Seller at the quantity that it is able to accept in an overall arrangement in
 accordance with this Contract.                                                                                                                                                                                                                                          
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|1.2 | The on-grid
 electric quantity of the one station of the Seller are as follows:                                                                                                                                                                                                                                                                                                                                              
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    | (1)                                                                                                                                                                                                                                                                                                                                                                                                                           | Latudi
 Hydroelectric Station
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               | (i)                           | Annual
 on-grid electric quantity of 2010:32,200,000 KWH
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               | (ii)                          | On-grid
 electric quantity plan of each month (KWH)     
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | January: 800,000
 KWH                                   
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | February: 600,000
 KWH                                  
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | March: 1,700,000
 KWH                                   
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | April: 1,880,000
 KWH                                   
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | May: 3,240,000
 KWH                                     
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | June: 3,150,000
 KWH                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | July: 3,480,000
 KWH                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | August: 3,610,000
 KWH                                  
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | September: 3,580,000
 KWH                               
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | October: 3,430,000
 KWH                                 
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | November: 3,220,000
 KWH                                
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               | December: 3,510,000
 KWH                                
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|1.3 | Before the end of October each year, the Buyer and the Seller (the Parties) shall discuss the on-grid
 electric quantity of the next year, and enter into a Power Purchase and Sale
 Contract of the next year before the end of December.                                                                                                                                                                                 
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|2   | Quality of On-grid Electricity                                                                                                                                                                                                                                                                                                                                                                                               
|    |                                                                                                                                                                                                                                                                                                                                                                                                                               |                               |                                                         
|2.1 | The tolerated range of error of the Sellers voltage of on-grid
 electricity (taken from the metering point): the sum of the absolute positive
 and negative values of the range of error shall not exceed 10% of the
 specified value; the power factor shall be 0.85. A payment for the portion of
 the short-supplied reactive electric quantity shall be calculated at the rate
 of RMB0.02/kVar·h and paid to the Buyer.

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|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |  | 
|--- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |  | 
|2.2 | The Sellers on-grid electricity shall meet the requirements of the
 Regulations of Yunnan Province for the Administration of Grid Voltage and
 Reactive Electricity, be subject to the unified arrangement and adjustment of reactive electricity and voltage stipulated by Nujiang
 Prefecture, or otherwise the Buyer shall have the right not to purchase the
 on-grid electric quantity from the Seller.                                                                                                                                                        
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|3   | Power Measurement                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|3.1 | On-grid
 electric quantity metering points at the Sellers hydroelectric stations                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|    | A set of two-directional active and reactive kilowatt-hour meters
 marked by hour and having the remote-transmission function shall be installed
 in accordance with the state standards and the specifications of the power
 industry in order to measure the Sellers on-grid electric quantity by hour,
 which shall be used as basis for the calculation of tariff. (Matters such as
 the electric quantity metering points measuring electric quantity sold by the
 Seller to the Buyer shall be defined in a separately signed power supply and
 use contract.)
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      
|3.2 | Parameters
 of the major on-grid electric quantity metering points at the Sellers
 hydroelectric stations                                                                                                                                                                                                                                                                                                                                                                                                                                                           

| |     |  |                      |  |                                                            |  |           |  |                              |  |                              |  |                                           
| | --- |  | -------------------- |  | ---------------------------------------------------------- |  | --------- |  | ---------------------------- |  | ---------------------------- |  | ------------------------------------------
| | No. |  | Purchasing 
 Point   |  | Metering 
 Point                                           |  | Meter No. |  | Current 
 Transducer 
 Ratio |  | Voltage 
 Transducer 
 Ratio |  | Multiplying 
 Factor for the 
 Measurement
| |     |  |                      |  |                                                            |  |           |  |                              |  |                              |  |                                           
| | 1   |  | Latudi Power Station |  | 153 short circuiting devices at Shangpa trasformer station |  | 00271385  |  | 300/5                        |  | 110000/100                   |  | 66000                                     
| |     |  |                      |  |                                                            |  |           |  |                              |  |                              |  |                                           
| | 2   |  |                      |  |                                                            |  |           |  |                              |  |                              |  |                                           

|    |                                                                                                             
|--- | ------------------------------------------------------------------------------------------------------------
|3.3 | Parameters
 of the back-up on-grid electric quantity metering points at the Sellers
 hydroelectric stations

| |     |  |                       |  |                                                       |  |                |  |                              |  |                              |  |                                           
| | --- |  | --------------------- |  | ----------------------------------------------------- |  | -------------- |  | ---------------------------- |  | ---------------------------- |  | ------------------------------------------
| | No. |  | Purchasing
 Point     |  | MeteringPoint                                         |  | Meter No.      |  | Current 
 Transducer 
 Ratio |  | Voltage 
 Transducer 
 Ratio |  | Multiplying 
 Factor for the 
 Measurement
| |     |  |                       |  |                                                       |  |                |  |                              |  |                              |  |                                           
| | 1   |  | Latudi Power
 Station |  | 141 short
 circuiting devices at Latudi Power Station |  | 20080356020102 |  | 200/5                        |  | 110000/100                   |  | 44000                                     
| |     |  |                       |  |                                                       |  |                |  |                              |  |                              |  |                                           
| | 2   |  |                       |  |                                                       |  |                |  |                              |  |                              |  |                                           

|    |                                                                                                                                                                                                                                                                                                 
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|3.4 | If any electric quantity measuring device experiences malfunction or
 breakdown in operation, the electric quantity of the period of malfunction or
 breakdown shall be determined by the contralateral electric quantity net the
 theoretic line loss calculating value at the metering points.
|    |                                                                                                                                                                                                                                                                                                 
|3.5 | The readings shown in the electric quantity measuring device shall be
 checked and recorded by the Parties at 10:00 AM on the 25th of each month.
 The Seller has the right to supervise.                                                                                                       

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|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|--- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------
|4   | Tariff                                                                                                                                                                                                                                                                                                                                                                                     
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|    | The on-grid
 tariff shall follow the provisions of the Document (Nu Ji Jia Ge [2004] No.
 444) issued by the Development and Planning Commission of Nujiang Lisu Ethnic
 Autonomous Prefecture, which stipulates:                                                                                                                                                                          
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|4.1 | Tariff in
 the dry season (November 1 of each year to April 30 of the next year): RMB 0.20
 /KWHh                                                                                                                                                                                                                                                                                          
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|4.2 | Tariff in
 the wet season (May 1 of each year to October 31 of the next year): RMB 0.16/KWH                                                                                                                                                                                                                                                                                                
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|4.3 | Tariff for silicon smelting: This shall follow the
 silicon-electricity interaction price stipulated (on a yearly basis) by the
 prefecture government. In the wet season (May to October of each year), the
 tariff is RMB 0.13/KWH; in the dry season, it shall be determined by whether
 the silicon plants continue their production or not and the power
 supply-and-demand situation.
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|5   | Tariff Settlement                                                                                                                                                                                                                                                                                                                                                                          
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|5.1 | The Seller shall submit the on-grid electric quantity, tariff and
 corresponding VAT invoice which are in compliance with this Contract to the
 Buyer. The tariff of each month shall be paid before 25th of the next month.
 If the Seller fails to submit the tariff invoice to the Buyer as required,
 the date of payment of the tariff by the Buyer shall be postponed
 accordingly.  
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|5.2 | The electric quantity supplied by the Buyer to the Seller and the
 electric quantity sold by the Seller to the Buyer must not be mutually set
 off.                                                                                                                                                                                                                                        
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|6   | Rights, Obligations and Liability
 for Breach of Contract                                                                                                                                                                                                                                                                                                                                  
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|6.1 | If the Seller fails to supply its scheduled electric quantity as
 agreed in the Contract due to the reasons attributable to the Buyer, the
 Buyer shall endeavour to make it up in the subsequent months of the year.
 Should it still fail to make it up, it shall compensate the Seller for the
 short-supplied electric quantity at the on-grid tariff prescribed in this
 Contract.    
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|    | In the event
 of any of the following circumstances, the Buyer will not make it up or give
 compensation:                                                                                                                                                                                                                                                                                  
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|    | (1)                                                                                                                                                                                                                                                                                                                                                                                         | where the
 cause of failure to supply its scheduled electric quantity can be attributed
 to the Seller;               
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|    | (2)                                                                                                                                                                                                                                                                                                                                                                                         | where the
 cause of the failure to supply its scheduled electric quantity can be
 attributed to a force majeure event;
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|    | (3)                                                                                                                                                                                                                                                                                                                                                                                         | where the
 cause of failure to supply the scheduled electricity quantity can be
 attributed to the power sale market. 
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|6.2 | If the electric quantity planned to be transmitted to the grid can
 not be completed according to the terms of the Contract due to the reasons
 attributable to the Seller, unless it is caused by a force majeure event, the
 Seller shall pay as compensation to the Buyer for the undelivered electric
 quantity at the on-grid tariff prescribed in this Contract.                     
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|    | In the event of the Buyers external power outage due to reasons
 attributable to the Seller, the Seller shall be liable to compensate the
 Buyer. The compensation shall be the electric quantity not supplied by the
 power supply enterprises during the time of power outage multiplying the
 average unit price of the electricity sold by the Buyer of the previous
 month.          
|    |                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                       
|6.3 | If the Buyer fails to pay the tariff to the Seller in accordance with
 this Contract, the Buyer shall pay the Seller a delay fee, which is
 calculated at a rate of 0.03% of the due but unpaid tariff on a daily basis
 commencing from the date of default.                                                                                                                              

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|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|--- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|6.4 | If the quality of electricity fails to meet the standards due to the
 reasons attributable to the Seller, the Seller shall assume the liability for
 damages caused to itself. For damages suffered by the Buyer or other users,
 the Seller shall be liable to make corresponding compensations.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|6.5 | The Seller shall abide by the overall arrangement made by the
 dispatch office of the Buyer, follow its instructions, participate in the
 systematic adjustment such as frequency moderation, peak-hour moderation and
 voltage moderation. Besides, it shall operate in accordance with the load
 curve required by the Nujiang Prefecture.                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|7   | Dispute Settlement                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | In case of any dispute arising from the performance of this Contract
 between the Buyer and the Seller, it shall be settled through consultations
 according to the principles set forth in this Contract. If no agreement can
 be reached, either Party may institute proceedings to the court in the place
 where the Buyer is located.                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|8   | Effect of this Contract and Matters
 not Covered                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|8.1 | Matters not covered in this Contract shall be handled in accordance
 with the Contract Law of the Peoples Republic of China, the Power Law of the
 Peoples Republic of China, the Regulations of the Peoples Republic of China
 on the Administration of Power Dispatching, the Power Purchase and Sale
 Contract formulated by the State Electricity Regulatory Commission, Yunnan
 Province Power Supply and Use Regulations, the Measures of Yunnan Nujiang
 Grid Co., Ltd. for the Management of the Connection of Newly Established
 Power Plants to the Grid and other relevant laws and regulations. In the
 event of change to the laws, regulations and policies of the state or the
 province, amend or supplement relevant terms of this Contract accordingly or
 separately enter into a contract.
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|8.2 | Monthly (daily) power purchase plan issued by the Buyer to the
 Seller, and the on-grid load curve shall be an integrated part of this
 Contract, and have the equal effect.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|8.3 | This Contract shall come into force upon execution and affixing of
 official seals by the Buyer and the Seller. The term of this Contract shall
 commence on 1 January 2010 and end on 31 December 2010. This Contract shall,
 in principle, be reviewed and signed once a year. If no change is proposed by
 either Party, this Contract shall continue to be effective until the execution
 of a new contract.                                                                                                                                                                                                                                                                                                                                                                                                 
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|8.4 | This
 Contract shall be executed in 2 originals and 2 duplicates. The Buyer and the
 Seller shall each hold an original and a duplicate, which are equally
 effective.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | Buyer:
 Yunnan Nujiang Grid Co., Ltd.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | Legal
 Representative or Agent: Cai Xianglong                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | Date of
 Execution: 1 January 2010                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | Seller:
 Fugong Xineng Power Development Co., Ltd.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | Legal
 Representative or Agent: Cheng Qingbao                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    
|    |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | Date of
 Execution: 1 January 2010                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               

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