Financing to related parties (include in other assets - others) for the year ended December 31, 2010 was as follows: Chunghwa has entered into a contract with ST-2 Satellite Ventures Pte., Ltd. on March 12, 2010 to lease capacity on the  ST-2 satellite. This lease term is 15 years which will start from the commercial operation of ST-2 satellite and the total  contract value is approximately NT$6,000 million (SG$261 million), which included a prepayment of NT$3,068 million,  and the rest of amount will be paid annually when ST-2 satellite starts its commercial operation. ST-2 satellite was  launched in May 2011, and began its commercial operation in August 2011. The total rental expense for the year ended  December 31, 2011 was NT$168 million, which consisted of a reduction of the prepayment of NT$85 million and an  additional accrual of NT$83 million. The prepayment was NT$2,983 million (classified as other current assets NT$205  million, and other assets - others NT$2,778 million) as of December 31, 2011. SENAO rents out part of its plant to SNI, and the rent is collected monthly. The foregoing transactions with related parties were determined in accordance with mutual agreements. c.  The compensation of directors, supervisors and managements is showed as follows: F-52 PART III 30.  PLEDGED ASSETS The following assets are pledged as collateral for short-term and long-term bank loans and contract deposits by LED, CHPT  and CHTS for the year ended December 31 2011, and by CHIEF, LED, SHE, CHPT, IISI and CHTS for the year ended  December 31, 2010. Year Ended December 31, 2010 Related Party Ending Balance MaximumBalance Interest Rate Interest Income (In Millions) (In Millions) (In Millions) STS $  ─ $  546 6.38% $  8 Year Ended December 31 2009 2010 2011 NT$ NT$ NT$ (In Millions) Salaries $144 $  156 $  157 Compensations 64 58 70 Bonus and remunerations 60 63 84 Amortizations $  268 $  277 $  311 December 31 2010 2011 NT$ NT$ (In Millions) Property, plant and equipment, net $  4,318 $  2,736 Restricted assets  70 9 $  4,388 $  2,745