这是因为如此，世界各地的公司数目颁发证书，为证书机构(CA)，是严格限制。
It's because of this that the number of companies worldwide that issue certificates, known as certificate Authorities (ca), is strictly limited.
存托凭证为登记在持有人名下或者持有人为背书人的证券证书，代表非台湾公司的在非台湾银行存托的一定数目股份。
TDR is a certificate registered in the holder's name or as a bearer security giving title to a number of shares in a non-Taiwan-based company deposited in a bank outside Taiwan.
存托凭证为登记在持有人名下或者持有人为背书人的证券证书，代表非台湾公司的在非台湾银行存托的一定数目股份。
TDR is a certificate registered in the holder's name or as a bearer security giving title to a number of shares in a non-Taiwan-based company deposited in a bank outside Taiwan.
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