Company Act Article 140

For a company issuing par value shares, its issue price of share certificates shall not be less than the par value thereof, unless otherwise provided for by the competent authority in charge of securities affairs for public companies.For a company issuing no par value shares, its issue price of share certificate shall have no restrictions.
中文原文 公司法第140條
採行票面金額股之公司,其股票之發行價格,不得低於票面金額。
但公開發行股票之公司,證券主管機關另有規定者,不在此限。
採行無票面金額股之公司,其股票之發行價格不受限制。

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