原因・理由N1
〜とあって
because... / given that... / as it is...
Structure
普通形 + とあって
Explanation
Plain form + とあって: because it is the (special) case, the main clause follows.
Examples
話題の映画とあって、初日から満席だった。
As it was a talked-about movie, it was sold out from day one.
初めての海外旅行とあって、彼は興奮していた。
Since it was his first trip abroad, he was excited.
Note
The main clause is usually an objective result or state. Similar to ということで.