A flatted factory building at Choi Hung Road in San Po Kong, tenants including Luen Cheong Fat Paper products Factory and Lak Shing Plastic Factory. 新蒲崗彩虹道的多層工廠大廈，專為中型工廠而設，廠戶包括聯昌發紙品廠及力成塑膠廠。