Taiwan holds a presidential election on January 13, 2004. Parties are automatically on the ballot if they received 5% of the vote in the last presidential election. Three parties meet that criteria.
Other parties and independent candidates need a petition of 1.5% of the last vote cast in the most recent parliamentary election. For the upcoming presidential election, about 290,000 signatures are needed. This story says one petition was submitted, for independent candidate Terry Gou.