PT KALTARA BATU KONSTRUKSI

PT Kaltara Batu Konstruksi (KBK) is a privately held aggregate (rock) quarry company operating in Malinau, North Kalimantan, Indonesia. Incorporated under Indonesian law, KBK holds a full Izin Usaha Pertambangan Operasi Produksi (IUP OP) – a Production Operation Mining License – issued by the Indonesian Investment Coordinating Board (BKPM), covering a total concession area of 40 hectares (approx. 400,000 m²). With an estimated 72 million tonnes of JORC-compliant resources, KBK is strategically positioned to support Indonesia’s infrastructure and regional development priorities. The quarry has an initial 15-year Life of Mine (LoM), with the potential to extend operations to 25 years or more through ongoing exploration and resource upgrades. KBK is a proud member of ResourcesX, and its mission is simple yet powerful: Advancing the development of Indonesia. We operate with a strong commitment to responsible quarrying, grounded in principles of transparency, environmental stewardship, regulatory compliance, and community partnership. In alignment with the United Nations 2030 Sustainable Development Goals, KBK aims to achieve Net-Zero Carbon operations by 2030, supporting both national progress and long-term sustainability.