The Appendix consists of three tables. The first table lists the INNs of pharmaceutical active ingredients that are eligible for duty-free treatment. The second table consists of chemical prefixes and suffixes that may be combined with the INNs to specify pharmaceutical derivatives that are also included in the agreement. The third table specifies the chemical intermediates for which duties have been eliminated. . imports of products included in the Pharmaceutical Appendix totaled over $85 billion in 2009; . exports of these products exceeded $41 billion. 1 The pharmaceutical industry has estimated the effect on . imports for only about 12 percent.