ASX-listed Kibaran Resources has signed a binding exclusivity agreement with Japanese commodities trading giant Sojitz for the supply of graphite concentrate produced at its Epanko project, in Tanzania. Under the agreement, Kibaran will be the sole supplier of Tanzanian graphite to Sojitz for distribution into markets including Japan, Korea and Taiwan. Sojitz, in turn, is a major supplier of raw material and products to the rapidly growing lithium battery industry.