Exhibit 4.20

Power of Attorney

I, Guifang QI, a Chinese citizen with Chinese Identification Card No.: 23210219621101282x, and a holder of 18.53% of the entire registered capital in Harbin Hongdoushan Science and Technology Development Co., Ltd. (the “Company”) (“My Shareholding”), hereby irrevocably authorize Heilongjiang Jingshangjing Bio-Technology Development Co., Limited (“WFOE”) to exercise the following rights relating to My Shareholding during the term of this Power of Attorney:

WFOE is hereby authorized to act on behalf of myself as my exclusive agent and attorney with respect to all matters concerning My Shareholding, including without limitation to: 1) attend shareholders’ meetings of Company; 2) exercise all the shareholder’s rights and shareholder’s voting rights I am entitled to under the laws of China and Company’s Articles of Association, including but not limited to the sale or transfer or pledge or disposition of My Shareholding in part or in whole; and 3) designate and appoint on behalf of myself the legal representative, the executive director, supervisor, the manager and other senior management members of Company.

Without limiting the generality of the powers granted hereunder, WFOE shall have the power and authority under this Power of Attorney to execute the Transfer Contracts stipulated in Exclusive Option Agreement, to which I am required to be a party, on behalf of myself, and to effect the terms of the Share Pledge Agreement and Exclusive Option Agreement, both dated the date hereof, to which I am a party.

All the actions associated with My Shareholding conducted by WFOE shall be deemed as my own actions, and all the documents related to My Shareholding executed by WFOE shall be deemed to be executed by me. I hereby acknowledge and ratify those actions and/or documents by WFOE.

WFOE is entitled to re-authorize or assign its rights related to the aforesaid matters to any other person or entity at its own discretion and without giving prior notice to me or obtaining my consent.

This Power of Attorney is coupled with an interest and shall be irrevocable and continuously valid from the date of execution of this Power of Attorney, so long as I am a shareholder of Company.

During the term of this Power of Attorney, I hereby waive all the rights associated with My Shareholding, which have been authorized to WFOE through this Power of Attorney, and shall not exercise such rights by myself.

This Power of Attorney is written in Chinese and English; in case there is any conflict between the Chinese version and the English version, the Chinese version shall prevail.

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Guifang QI
By:	/s/ Guifang Qi
November 5th, 2010

Witness:	/s/ Shumei Huang
Name:
November 5th, 2010

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