The Philippines was among the first signatories of the UN Charter. What country became its 51st signatory?

Question

The UN was founded in 1945 with 50 original countries. Indonesia came in late, however, was able to sign. Thus there were 51 original members of the UN.

Answer 1

you should have provided the answer later after everyone stopped guessing; then whoever answers correctly gets the best answer.

my curiousity suddenly vanished when you answered it yourself.