- Campha Cement Maint Plant is located in KM6, N/R 18A, Camthach ward, Campha town, Quang Ninh province with total capacity of 6,000 tons clinker per day (1.89 million tons clinker per year), equivalent to 2.3 million tons of PCB 40 Cement per year. Southern Branch (Campha Cement Grinding Plant) is located in My Xuan A industrial zone in My Xuan commune, Tan Thanh District, Baria - Vungtau province with total capacity of 1.48 million tons of PCB cement per year. - Campha has been proud of ...