title: How to validate a Singaporean FIN?
body: <p>Can anyone provide an algorithm to validate a Singaporean FIN?</p>
  
  <p>I know with a Singaporean NRIC I can validate it via modulo 11 and then compare the result to a lookup table but cannot find a similar lookup table for the FIN. </p>
  
  <p>I also do not know for sure if the modulo 11 is the correct method to validate. </p>
  
  <p>I am aware the government sells a algorithm for $400 but maybe someone knows a cheaper way. </p>
  
  <p>Bonus points for c# implementation. </p>