Is it permissible for a money exchange company to fund a concert organized by a foreign embassy for its non-Muslim community, in exchange for advertising the company's name and services?

If the celebration contains lawful prohibitions such as musical instruments, singing, and intermingling, then it is not permissible to sponsor or fund it, in accordance with His (the Almighty’s) saying: "And do not cooperate in sin and aggression." The means share the rulings of their ends.