12.  OTHER CURRENT ASSETS December 31 2010 2011 NT$ NT$ (In Millions) Spare parts $  1,797 $  2,306 Prepaid expenses 1,009 1,584 Prepaid rents 789 994 Others 526 635 $  4,121 $  5,519 PART III F-28 13.  INVESTMENTS ACCOUNTED FOR USING EQUITY METHOD December 31 2010 2011 % of % of Carrying Owner- Carrying Owner- Amount ship Amount ship NT$ NT$ (In Millions) (In Millions) Non-listed Taiwan International Standard Electronics Co., Ltd. (“TISE”)  $  556 40 $  609 40 ST-2 Satellite Ventures Pte., Ltd. (“STS”) 398 38 462 38 Senao Networks, Inc. (“SNI”) 308 41 346 41 International Integrated System, Inc. (IISI) ─ ─ 257 33 Viettel-CHT Co., Ltd. (“Viettel-CHT”) 246 30 255 30 Huada Digital Corporation (“HDD”) ─ ─ 251 50 Skysoft Co., Ltd. (“SKYSOFT”) 95 30 113 30 Dian Zuan Integrating Marketing Co., Ltd. (“DZIM”) ─ ─ 110 40 Kingwaytek Technology Co., Ltd. (“KWT”) 66 33 75 33 So-net Entertainment Taiwan Limited (“So-net”) 25 30 34 30 HopeTech Technologies Limited (“HopeTech”) 19 45 21 45 Xiamen Sertec Business Technology Co., Ltd. (“Sertec”) 8 49 1 49 Tatung Technology Inc. (“Tatung”) 4 28 ─ ─ Panda Monium Company Ltd. ─ 43 43 1,725 2,534 Prepayments for long-term investments in stocks  Jiangsu Zhenhua Information Technology Company, LLC ─ ─ 29 ─ $  1,725 $  2,563