Physics with $B \to \eta'$ and $B\to J/\psi$
  In this talk I discuss two topics related to B decays. I will first discuss the Standard Model prediction for $B\to \eta' X_s$, and then discuss how to use experimental information from $B\to J/\psi K^*$ to test CP violation beyond the SM. 
Xiao-Gang He (NTU)