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Exhibit 4.122

Supplemental Agreement on the Power
Purchase and Sale Contract for the Year of 2011

(Contract Number: De Dian Si 2011-079)

Binglangjiang Expanded Power Station

Dehong Power Supply Co., Ltd.

December 28, 2010

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Supplemental Agreement on the Power Purchase and Sale Contract for the
Year of 2011

In order to
establish a regulated power supply and utilization order and develop a healthy
power supply and utilization market, according to the installed capacity of the
power stations, the characteristics of the units, the power utilization load
conditions of the year of 2011 and the impact of financial crisis, on the basis
of entering into the Power Purchase and Sale Contract (General Provisions) by
and between the power supplier and the consumer, the Power Purchaser and the
Power Seller have reached the following Supplemental Agreement (this
Agreement) through friendly consultation.

|   |                                                                                                                               |                                                                                                                                                                                               
|-- | ----------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|I. | The Parties hereby determine that the
 annual contractual on-grid electricity output for the year of 2011 is 67,740,000
 kwh.
|   |                                                                                                                               |                                                                                                                                                                                               
|   | 1.                                                                                                                            | Considering the annual overhaul
 plan of the units and the regularity of power supply and demand, the
 contractual on-grid electricity output allocated for each month is set out as
 follows:

| |            |              
| | ---------- | -------------
| | January:   | 5,960,000kwh;
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| | February:  | 6,730,000kwh;
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| | March:     | 1,550,000kwh;
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| | April:     | 1,940,000kwh;
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| | May:       | 1,690,000kwh;
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| | June:      | 5,670,000kwh;
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| | July:      | 6,700,000kwh;
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| | August:    | 6,700,000kwh;
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| | September: | 7,700,000kwh;
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| | October:   | 7,700,000kwh;
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| | November:  | 7,700,000kwh;
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| | December:  | 7,700,000kwh.

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|    |                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|--- | --------------------------- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
|    | 2.                          | On-grid Tariff during
 Commercial Operation Period                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|    |                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    |                             | Upon being approved by the
 competent price regulatory authority of the local government, the on-grid
 tariff for the units of the Power Plant during the commercial operation period
 shall be implemented according to the document with the number of De Fa
 Gai JiaGe [2010] No. 300; in case
 of any change to the governmental tariff policy, the new policy shall prevail. The reactive compensation tariff shall
 be: RMB 0.02/kwh.                                                                                                                                                                                                                      
|    |                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | 3.                          | Under the normal production
 condition of the silicon smelting enterprises of our prefecture, the Power
 Purchaser shall ensure eighty five percent (85%) of the contractual
 electricity output of the Power Station could be dispatched out. In case of
 abnormal production condition of the silicon smelting enterprises of our
 prefecture, the dispatching shall be carried out on the principle of the same
 proportion for the same installed capacity. The surplus electricity output
 generated not in compliance with the dispatching instructions shall be deemed
 as invalid electricity output and shall not be settled.                           
|    |                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | 4.                          | In August of each year after
 having concluded the Power Purchase and Sale Contract, after friendly
 consultations, the Parties may appropriately adjust the annual contractual
 on-grid electricity output of that year and the contractual on-grid
 electricity output for the rest months based on the actual situation of power
 supply and demand, and reach a written agreement; prior to the end of
 November of each year, the Parties shall consult with each other to determine
 the annual contractual on-grid electricity output for the next year, and
 enter into a Power Purchase and Sale Contract for the next year before the
 end of December.
|    |                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|    | 5.                          | The Power Seller shall strictly
 comply with the Administrative Provisions on the Voltage Quality and Reactive
 Power of the Power System of Yunnan Grid Company and follow the dispatching
 instructions and provide with the production and operation data upon the
 request of the Power Purchaser, such as: the daily electricity output, the
 overhaul plan, etc.                                                                                                                                                                                                                                                                                           
|    |                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  
|II. | Equivalent Available Factor

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|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 
|---- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | 
|     | The condition precedent for the
 Power Purchaser to purchase from the Power Seller the electricity output not
 less than the annual contractual on-grid electricity output is that: the
 planned equivalent available factor of the generator units determined in
 accordance with the annual contractual on-grid electricity output of that
 year shall reach 39% or above. In the event the actual equivalent
 available factor of the generator units fails to reach the aforesaid
 requirement, the Power Purchaser shall be entitled to reduce its annual
 contractual on-grid electricity output corresponding to the deficient
 proportion of the equivalent available factor.
|     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 
|III. | The valid term of this
 Agreement shall be from January 1, 2011 to December 31, 2011.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                

This Agreement shall have the same legal effect as the Power Purchase
and Sale Contract. This Agreement comprises four (4) pages, and shall be signed in four (4)
counterparts. Each Party shall hold one (1), and two (2)
counterparts shall be filed with the local power regulatory authority for
record.

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Power
Purchaser: Dehong
Power Supply Co., Ltd.

(Stamp)

Legal Representative: Yue Zhiqiang

Authorized Proxy:

Power
Seller: Yunnan
Huabang Electric Power Development Co., Ltd.

(Stamp)

Legal Representative:

Authorized Proxy:

Signing Date: December 29, 2010

Signing Place: Mangshi

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