Paris Saint-Germain's official website reported that 18-year-old youth training young player Hannach joined Montpellier on loan.

was born in Hannach on December 7, 2006. He has joined the Paris Saint-Germain youth training camp since he was 8 years old. The young defender has performed well in Paris, moving from reserve to U19 echelon and becoming the squad's core player. In May 2024, he and his teammates won the French U19 League championship.

With his outstanding performance, Hannach participated in the summer preparations for the 2024-2025 season and played for the first team in two pre-season friendly matches. This season, he has been selected for the first team four times and has made 14 appearances for the U19 echelon, including five youth Champions League games. In addition, he also won the French U19 League championship with the team again.

In addition to his excellent performance in the club, Hannach also represented the Moroccan national team in international competitions. Since September 2024, he has been selected for the U20 national team many times and reached the finals of the African U20 Championship with the team in May 2025.