Reuters: Three more companies on Monday started providing price data on U.N. carbon offsets to the state-backed Japan Bank for International Cooperation, bolstering the bank’s role as a supplier of such information in Japan. The three are Barclays Capital Japan, orbeo/Rhodia Japan and Sumitomo Corp, JBIC said in a statement. The Japanese government and big companies, including utilities, have been active in buying offsets to help the world’s fifth-biggest polluter meet its greenhouse …