Company Overview PT Kaltara Batu Konstruksi (PT KBK) is an Indonesian rock mining company. We are located in Malinau, North Kalimantan, Indonesia, near the Malaysian border, and hold a 40-hectare mining license known as Operation Production Mining Business License (IUP OP) issued by the Indonesian Investment Coordinating Board (BKPM). Our flagship project, the KBK Quarry Project (KBK), is designed to operate a drill and blast quarry with a production capacity of 7 million tons per annum (Mtpa) at its peak. It includes a 44-hectare hub area for processing, crushing, stockpiling, and retailing. To facilitate efficient material transportation, we plan to establish a 7km overland conveyor link from the hub to a 32-hectare port. We are also considering a barge link service for transporting our products via the river to domestic and international customers. The KBK port area is approximately 8km northeast of the quarry, near the township of Malinau.