EXHIBIT 2.1 AGREEMENT AND PLAN OF REORGANIZATION This Agreement and Plan of Reorganization (hereinafter called the "Agreement"), dated as of December 15, 1997, is executed by and between Texas Regional Bancshares, Inc., McAllen, Texas, a Texas...Agreement and Plan of Reorganization • March 11th, 1998 • Texas Regional Bancshares Inc • State commercial banks • Texas
