Complex sentence: In June 2004, he announced that he would not be seeking a renewal from the city of his appointment as a board member meaning that he would also end his term as chair in September 2004, nine months after winning the position.
Split into simpler sentences: In June 2004, he announced that he would not be seeking a renewal from the city of his appointment as a board member. This effectively brought to an end his term as chair in September 2004, nine months after winning the position.