You’ve answered your own question. It’s golden week, it’s a national holiday. I’m also led to believe it’s a pretty big deal over there. It’s basically organised so they got a big block of annual leave.
Aren't MSI Taiwanese? While they might manufacture in the "People's Republic of China", I doubt they celebrate the "National Day of the People's Republic of China" which I think is what this golden week is about, due to the little "which of us is China" disagreement they have. Though international politics isn't my strong suite, so I might be wrong.