July 20, 2010

Exhibit 10.52

July 20, 2010

Pine Capital Enterprises, Inc. and

Taiyuan Yiwei Magnesium Industry Co., Ltd.

Ladies and Gentlemen,

This letter will serve as an amendment to the July 13, 2010 Equity Transfer Agreement (the “Agreement”) entered into among CDI China, Inc., (“CDI China”), Pine Capital Enterprises, Inc. (“Pine Capital”) and Taiyuan Yiwei Magnesium Industry Co., Ltd. (“Yiwei Magnesium”) to acquire an 80% interest they own in Taiyuan Ruiming YiWei Magnesium Industry Co., Ltd. (“Ruiming Magnesium”)

In connection with the above referenced agreement, Pine Capital and Yiwei Magnesium hereby agree that if in Fiscal 2011 Ruiming Magnesium’s revenues are more than RMB100 million and EBITDA per metric ton of goods produced is no less than RMB 1,200 per ton in that fiscal year, Party A’s obligation to deliver 622,172 shares CDII’s common stock shall be contingent upon CDII obtaining shareholder approval of the issuance of such shares at an annual meeting of its shareholders.

The defined terms in this letter shall have the same meaning as the defined terms in the Agreement.

If the terms set forth in this letter meet with your approval, please sign a copy and return it to me.

CDI China, Inc.
Signature:	/s/ Yuejian (Xxxxx) Xxxx
Printed Name:	Yuejian (Xxxxx) Wang
English Name:	Xxxxx Xxxx
Title:	President
Pine Capital Enterprises Inc.
Signature:	/s/ Xxxxx Xxxxx
Printed Name:	Xxxxx Xxxxx
English Name:	Lifei (Xxxxxx) Xxxxx
Title:	President
Taiyuan Yiwei Magnesium Industry Co. Ltd.
Signature:	/s/ Xxxxx Xxxxx
Printed Name:	Xxxxx Xxxxx
English Name:	Xxxxx Xxxxx
Title:	Chairman and President