As I mentioned in an earlier blog article, the fee that ISA/SG charges per invention to carry out a PCT search will increase on November 1, 2017. The fee charged in US dollars will increase from $1552 to $1645.
This offers an opportunity to save a little money, if a US filer is planning to file a PCT application in the near future and is planning to pick the Singapore patent office as the international searching authority. Just get the application filed prior to November 1.