In case we need this info:

The P5 - 5 permanent members of the UN National Security Council

• US

• UK

• France

• Russia

• China

Iran nuclear deal framework drafted in 2015 was an agreement between Iran and the P5 +1 (Germany) + EU

https:// en.wikipedia.org/wiki/Permanent_members_of_the_United_Nations_Security_Council

https:// en.wikipedia.org/wiki/Iran_nuclear_deal_framework