Envato Element license questions and usage

Hello, I have a license usage question. I have a Envato Element annual subscription.

I’m making a intro video for a company by using a video template, stock video and soundtrack. Can the company put the final intro video in the beginning of all their future videos? The will post the video to FB and YouTube.

Do I need to license all the elements everytime they add the intro video into their new videos?

Thanks,
Skye