Company Act Article 161-2

For the shares to be issued by a company, the issuing company may be exempted from printing any share certificate for the shares issued.A company not printing its share certificate in accordance with the provision of the preceding paragraph shall register the issued shares with a centralized securities depositary enterprise and follow the regulations of that enterprise.The transfer and creation of pledge for the shares registered with a centralized securities depositary enterprise shall be handled by the company or by way of book-entry transfer; Article 164 of this Act and Article 908 of the Civil Code shall not apply.The preceding paragraph shall not apply to shares printed but not returned to the company.
中文原文 公司法第161-2條
發行股票之公司,其發行之股份得免印製股票。
依前項規定未印製股票之公司,應洽證券集中保管事業機構登錄其發行之股份,並依該機構之規定辦理。
經證券集中保管事業機構登錄之股份,其轉讓及設質,應向公司辦理或以帳簿劃撥方式為之,不適用第一百六十四條及民法第九百零八條之規定。
前項情形,於公司已印製之股票未繳回者,不適用之。

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