EMI, the Annual Conference for the Exchange of Mathematical Ideas series debuted in 2012 and has run every year since then except in 2020 and 2021, when we suspended the conference because of the COVID-19 pandemic.  The aim of the annual conference is to improve communication among mathematicians in different specializations in order to enhance and stimulate their research.  Talks are therefore expected to focus on a general introduction to the speaker's current research, major open problems, and its future prospective. The ninth conference, supported by NSF, will take place at the campus of  University of Iowa, located in Cedar Falls, Iowa. Experts in different specializations are invited internationally to give general talks on their research.  This year, the conference will focus on Algebra and its related field. Nevertheless, we regard "algebra" in a broad sense, and  are looking for a wide range of related lectures.