< Appendix >

1. Overview of the transaction with Astomos Energy Corporation Seller Astomos Energy Corporation Buyer Tokyo Electric Power Company Contract From 2013 to 2015 Period Contract A total of approx. 200,000 tons Amount Price index US propane linked price Delivery DES: Delivered Ex Ship * mode Delivered Ex Ship (DES): Delivery mode Trade terms requiring the seller to deliver goods to the place of delivery designated by the buyer (The title of the goods and the accompanying risks are transferred to the buyer at the place of delivery).

2. Overview of Astomos Energy Corporation

Name Astomos Energy Corporation Location Tokyo, Japan Overview  Energy company that imports, purchases, sells LPG and owns, leases and sells/buys ships.  Established in 1962 as Mitsubishi Liquefied Gas Company.  Renamed to Astomos Energy Corporation in 2006 upon integration of LPG businesses of Idemitsu Kosan Co., Ltd. and .

3. Overview of Enterprise Product Partners LP

Name Enterprise Product Partners LP Location Houston, Texas, U.S. Overview  Energy company that handles natural gas, NGL (Natural Gas Liquid: Propane and butane extracted from natural gas through fractional distillation), crude oil, oil products and products in the U.S.  1. NGL: Pipeline transportation and storage, 2. Natural gas: Onshore pipeline transportation, 3. Crude oil: Onshore pipeline transportation and storage, 4. Offshore pipeline transportation, 5. Petrochemical products, gas distillation and storage, etc.  Established in 1968.

4. Anegasaki Thermal Power Station Location Ichihara City, General Tetsuro Sasayama Manager Site area Approx. 920,000m2

Facilities Operational Unit Output commencement Power generation facilities Unit 1 600MW LNG, oil, crude oil December 1967 Unit 2 600MW LNG, fuel oil, crude oil November 1969 Unit 3 600MW Fuel oil, crude oil, LNG, LPG, NGL June 1971 Unit 4 600MW Fuel oil, crude oil, LNG, LPG, NGL September 1972 Unit 5 600MW LNG, LPG April 1977 Unit 6 600MW LNG, LPG October 1979 Emergency 1,400kW x 4 Gas oil April 2011 power supply Crude oil 27,300kl x 2, 28,700kl x 1, 45,300kl x 2, 45,900kl x 2 Fuel tanks Oil Fuel oil 2,900 kl x 1 Propane 45,000kl x 2, 60,000 kl x 2 LPG Butane 40,000 kl x 4