The former residence of Zuo Shi, a Chinese pioneer and Hakka leader of Kluang between 1950s to 1960s is located here at No.26, Jalan Lambak. Zuo was also the first president of the Hakka Association in Kluang (1937-1958). He became the second president of Kluang Chinese Chamber of Commerce & Industry. In 1955, he proposed to found Jia Ying Association of Johor. From 1960s until end of 1980s, this building also served as the office for UMBC Bank (established in 1959), one of the three major banks in Malaysia at that time. The bank was founded by Chang Ming Thien (originated from Hokkien Tong An) and a group of Chinese merchants. It had changed hands and had been reshuffled as Sime Bank. Finally, it was reshuffled and renamed as RHB.