Labor Union Act Article 33

In case that the procedures for convening a general meeting of members or member representatives, or the methods of adopting resolutions at such a meeting violate statutes, regulations or union charter, a member or member representative attended may file a suit to a court to abolish the resolution within thirty days after the adoption of such a resolution, provided that, if the member or member representative attended has not raised any opposition during the meeting, the member or member representative is not allowed to file the suit.In case that the court deems the violation is insignificant and has no effect on the resolution, it may dismiss the suit for abolishing the resolution referred to in the preceding Paragraph.
中文原文 工會法第33條
工會會員大會或會員代表大會之召集程序或決議方法,違反法令或章程時,會員或會員代表得於決議後三十日內,訴請法院撤銷其決議。
但出席會議之會員或會員代表未當場表示異議者,不得為之。
法院對於前項撤銷決議之訴,認為其違反之事實非屬重大且於決議無影響者,得駁回其請求。

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