The Act regarding the Exercise of Shareholders’ Rights for Shareholders in Mainland China of a Company in Taiwan Article 4

The reserved shares shall have no voting rights and shall not be counted in the total number of issued shares while adopting a resolution at a meeting of shareholders for a Company in Taiwan.
中文原文 在臺公司大陸地區股東股權行使條例第4條
在臺公司之股東會,保留股無表決權,其股份數不算入已發行之股份總數。

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