In 2016, federal and provincial governments expanded the CPP to provide enhanced future benefits for contributors. This video shows how, as the investment manager of the CPP Fund, CPP Investments prudently invests the additional contribution amounts arising from this enhancement. FAQs What’s the difference between base and additional CPP? There is only one CPP. However, in 2016 federal and provincial governments expanded the CPP to provide enhanced future benefits for contributors. CPP Investments is responsible for prudently investing the additional contribution amounts arising from the enhancement to the CPP. Learn more.