substantial negative publicity regarding its ownership and the environmental problems in La Oroya. The environmental problems were not solved despite huge investment by Renco, and Renco never made any financial profit from its investment. Doe Run Peru is currently in a dispute with the Peruvian government which in part relates to Doe Run's claims that Centromin did not live up to its obligations with regard to cleaning up the pre-existing pollution. Philanthropy Ira Rennert ranks #771 on Forbes magazine's list of the world's billionaires. He also ranks #29 on The Jerusalem Post list of the World's 50 Richest Jews. Rennert and his wife Ingeborg have made many charitable donations to various organizations. They donated $5 million to establish the Wiesel Center at Boston University and $250,000 to the Lincoln Center. They also gave over $1 million to the World Trade Center Memorial and established the Rennert Entrepreneurial Institute of Sy Syms School of Business at Yeshiva University. They have endowed chairs at several different universities, including a chair in Jewish studies at Barnard College, a chair in Aging Research at Albert Einstein College of Medicine, a chair in Stem Cell Biology at Albert Einstein College of Medicine, and the Ira Rennert Professorship of Business at Columbia University. They also established the Ira Leon Rennert Professor of Entrepreneurial Finance at New York University and founded the Ingeborg Rennert Center for Jerusalem Studies at Bar-Ilan University. The Rennerts also helped to fund the construction of The Western Wall Heritage Foundation in Jerusalem (the visitor's center is called The Ingeborg and Ira Leon Rennert Hall of Light). Rennert's wife and children are named as the donors of The Jonas Mendel (Yonah Menachem Ben Mendel) Rennert Memorial Chapel at the Center for Jewish History. The Rennerts are known to have donated to Rabbi Aharon Bina's new yeshiva in Israel, Yeshivat Netiv Aryeh, and are additionally honored with a plaque as well as their family upon entrance into the building. They also donated hundreds of Torah scrolls to communities in Israel. The family also funded the construction for a new mikvah at the Fifth Avenue Synagogue, which was completed in May 2010. Political activity Rennert is a major Republican donor. He has contributed money to John McCain, Rudy Giuliani and other candidates. Personal life Family Rennert is married to Ingeborg Hanna Rennert, a former airline ticket agent who is a convert to Judaism. She serves