Step 1: Recall the 2024 BRICS expansion.
BRICS added several new members to its group beyond Brazil, Russia, India, China and South Africa.
Step 2: Eliminate the countries not part of this expansion.
Japan, Australia and Germany were not among the new entrants.
Step 3: Confirm the new member.
The United Arab Emirates joined BRICS as a new member in 2024.
\[ \boxed{\text{United Arab Emirates}} \]