Accounting Standards and Regulations for the Telecommunications Enterprise with Significant Market Power Article 47

Enterprises with significant market power shall make available all accounting documents for at least five years after the completion of annual closing procedures; and all accounting books and financial statements shall be kept for at least ten years after the completion of annual closing procedures. The above limitation does not apply to the documents of permanent records and of unresolved accounting issues.
中文原文 市場顯著地位者會計制度及會計處理準則第47條
市場顯著地位者各項會計憑證應於年度決算程序辦理終了後,至少保存五年;財務報告及與財務報告有關之營運資料,應於年度決算程序辦理終了後,至少保存十年。
但有永久保存之必要或有關未結會計事項者,不在此限。

English translation for reference only; the Chinese text prevails. Not legal advice.