The government has been established improving the quality of rubber by implementing the Gerakan Nasional Bokar Bersih directed through Unit Pengolahan dan Pemasaran Bokar or UPPB. In processing and marketing rubber, UPPB conducts a rubber tender system. One of the UPPBs that applies the rubber tender system is UPPB KT. Karya Tani-IV. However, the tender system is still carried out conventionall…