X0203 3 2008-09-18 0 0001398551 Yongye Biotechnology International, Inc. YGYV 0001044321 MARXE AUSTIN W & GREENHOUSE DAVID M C/O SPECIAL SITUATIONS FUNDS 527 MADISON AVENUE, SUITE 2600 NEW YORK NY 10022 0 0 1 0 Common Stock 2598078 I By Limited Partnerships Warrants 1.848 2008-04-15 2013-04-15 Common Stock 324760 I By Limited Partnerships Warrants 1.848 2008-09-08 2013-09-08 Common Stock 324760 I By Limited Partnerships This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Cayman Fund, L.P. (Cayman) and Special Situations Private Equity Fund, LP (PE), respectively. 1,688,750 shares of Common Stock are held by Cayman and 909,328 shares of Common Stock are held by PE. The interest of Marxe and Greenhouse in the shares of Common Stock owned by Cayman and PE is limited to the extent of his pecuniary interest. This is a joint filing by Austin W. Marxe (Marxe) and David M. Greenhouse (Greenhouse). They share voting and investment control over all securities owned by Special Situations Cayman Fund, L.P. (Cayman) and Special Situations Private Equity Fund, LP (PE), respectively. 422,188 Warrants are held by Cayman and 227,332 Warrants are held by PE. The interest of Marxe and Greenhouse in the shares Warrants owned by Cayman and PE is limited to the extent of his pecuniary interest. Austin W. Marxe 2008-09-18 David M. Greenhouse 2008-09-18