How to transfer contacts from iPhone 5S to SIM Card

I think I’ve replied to another post regarding this, I don’t think you can, the iPhone I believe only allows you to copy from Sim to the device.

Import contacts from your SIM card to your iPhone - Apple Support

I'm fairly certain SiHancox is correct - you can't save from the iPhone to a SIM card.

What are you trying to do? Perhaps we can offer other suggestions for transferring the information.

~Lyssa