I am an Indian citizen wanting to travel to Taiwan later this year. I have an expired and used Schengen D visa. The visa was used by me 4 years ago. Am I eligible for the ROC certificate?
From the Taiwanese Bureau of Consular Affairs:
1.The applicant possesses at least one of the following documents issued by Australia, Canada, Japan, Korea, New Zealand, any of the Schengen countries, the United Kingdom, or the United States:
O Valid resident or permanent resident card or Status
O Valid entry visa (electronic visa must be printed out)
O Resident card or visa that has expired less than 10 years prior to the date of arrival in Taiwan
So yes, you can apply for the authorisation certificate.