The Monnaie de Paris (Paris Mint) is a government-owned institution responsible for producing France's euro coins. Founded in 864 AD, it is the world's oldest continuously-running minting institution operating from two sites, one in Paris and one in Pessac.
Administratively speaking, the "Direction of Coins and Medals", the national mint is an administration of the French government charged with issuing coins as well as producing medals and other similar items. Many ancient coins are housed in the collections maintained there.
Though in the Middle Ages there were numerous other mints in provincial cities officially issuing legitimate French coinage struck in the name of the ruler, the Monnaie de Paris has always been the prime issuer.
According to en.wikipedia