[CUSIP No. 58403M102 1 Names of Reporting Persons: I.R.S. Identification Nos. of above persons (entities only). China Dongxiang (Group) Co. Ltd 2 Check the Appropriate Box if a Member of a Group (See Instructions) (a) [X] (b) [ ] 3 SEC Use Only 4 Citizenship or Place of Organization Cayman Islands]