Cheng Chin-hei was born in Hong Kong. He holds a Master of Arts degree from the Liszt Ferenc Academy of Music. Prior to that he graduated from the Hong Kong Academy for Performing Arts with a Bachelor of Music degree with First Class Honours. His violin teachers include Ho Hong-ying, Vilmos Szabadi and Zsófia Járdányi. He also studied chamber music with the world-renowned Kodály Quartet and Doric String Quartet. In 2015 and 2016 he toured in Asia as a member of the Asian Youth Orchestra. He has also performed at the Kuhmo Chamber Music Festival in Finland, the Echigo-Tsumari Art Field in Japan and at the Kuandu Arts Festival in Taipei. In 2021 he won the Third Prize in the Young Artists Division of the Hong Kong Generation Next Art (HKGNA) International Music Competition. He became a member of City Chamber Orchestra of Hong Kong in 2022.
鄭展熙生於香港。他先後於香港演藝學院及匈牙利李斯特音樂學院修畢學士（一級榮譽畢業）及碩士課程，師隨何紅英，Vilmos Szabadi和Zsofia Jardanyi主修小提琴。他曾跟隨Kodaly四重奏及Doric四重奏學習室內樂。亦參加芬蘭庫赫莫室樂節、日本越後妻有大地藝術祭和台北關渡藝術節。他曾於2015及2016年參加亞洲青年管弦樂團巡迴演出。鄭展熙於2021年HKGNA國際音樂比賽新晉藝術家組取得第三名。他於2022年加入香港城市室樂團。