U.S. Trade Representative Michael Froman has said the U.S. and China still have not exchanged "negative list" offers in their negotiations for a Bilateral Investment Treaty (BIT), but expressed optimism that the swap would take place soon. He also said they are still trying to schedule the next negotiating round. "The United States and China expect to begin the negative list phase of the BIT negotiations soon, and we are working closely together to finalize the time for the exchange...