CHOP [China Gerui Advanced Materials] SC 13G/A: (Original Filing)

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: *The remainder of this cover page shall be

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: (Original Filing)

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: *The remainder of this cover page shall be

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: (Original Filing)

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: *The remainder of this cover page shall be

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: (Original Filing)

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: *The remainder of this cover page shall be

[*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page. The information required in the remainder of this cover page shall not be the Act]

CHOP [China Gerui Advanced Materials] SC 13G/A: (Original Filing)

[SCHEDULE 13G (Amendment No. 1)* China Gerui Advanced Materials Group Limited (formerly known as China Opportunity Acquisition Corp) (Name of Issuer) (Title of Class of Securities) G21101111 (CUSIP Number) December 31, 2009 (Date of Event Which Requires Filing of this Statement) o þ o * The remainder of this cover page shall be filled out for a reporting person’s initial]

CHOP [China Gerui Advanced Materials] SC 13G/A: SCHEDULE 13G (Amendment No. 1)* China Gerui Advanced

[SCHEDULE 13G (Amendment No. 1)* China Gerui Advanced Materials Group Limited (formerly known as China Opportunity Acquisition Corp) (Name of Issuer) (Title of Class of Securities) G21101111 (CUSIP Number) December 31, 2009 (Date of Event Which Requires Filing of this Statement) o þ o * The remainder of this cover page shall be filled out for a reporting person’s initial]

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