Which of the following treaties provided the legal basis for Mercosur? International Marketing Chapter 9 Which of the following treaties provided the legal basis for Mercosur? A. Treaty of Accession 2003 B. Treaty of Asunción C. Treaty of Easton D. Treaty of Versailles E. Treaty of Montevideo Answer: Treaty of Asunción Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+