- https://service.ntpc.gov.tw/contact/Index.action
- castella-land@king.com.tw
- Head Office:No.1, Yugang N. 1st Rd., Qianzhen Dist., Kaohsiung City 806604, Taiwan
- Taipei Office:6F., No. 100, Sec. 2, Heping W. Rd., Zhongzheng Dist., Taipei City 100060, Taiwan