How long do Emirates tier miles last?

Related questions

1. Can I take a guest into Emirates Lounge?
2. Can you use Qantas points for Emirates flights?
3. How many miles do you need for Emirates Silver?
4. How can I transfer my Emirates Skywards miles to another member?
5. Can I use Qantas lounge on Emirates?
6. Can I convert Qantas points to Emirates?
7. Can I earn Avios on Qatar Airways?
8. What alliance is Emirates part of?
9. How do emirates miles work?
10. How do I join Emirates Skywards?

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