In this Malay name, there is no surname or family name. The name Abdul Aziz is a patronymic, and the person should be referred to by their given name, Mhd Amin Nordin. The word "bin" or "binti"/"binte" means 'son of' or 'daughter of', respectively.
Nordin was the Director-General of Kuala Lumpur City Hall before his appointment to the mayoral office (prior to that, he was also already a senior experienced civil servant in different government departments and ministries). He was appointed Mayor of Kuala Lumpur by Tengku Adnan Tengku Mansor, then-Minister of Federal Territories to succeed Ahmad Phesal Talib, who decided to take mandatory retirement upon reaching 60 years of age and not having a desire to renew his contract.