If you worked outside Canada
You may be entitled to a retirement pension from the country in which you worked. Receiving a pension from another country in no way reduces the amount of a pension under the Québec Pension Plan. Consult the list of countries with which Québec has a social security agreement. Then, check to see whether you are eligible to receive a pension from a foreign country.
Pensions from some countries may be reduced if you are receiving a pension from Québec.