07 April 2025
Harita Nickel remains committed to sustainability across all operations amid growing global demand for responsible mining practices. One of its main goals is to use Processing Residue (SHP) from the pyrometallurgical smelting process, specifically nickel slag, which is now used as a soil improver for reclaiming mined land.
As a form of SHP, nickel slag previously required specialized management. However, Harita Nickel’s Environment and Business Improvement Team has developed an innovative approach to repurpose it as a valuable material for sustainable land reclamation. Nickel slag, which has a lot of silica, magnesium, and essential minerals, was mainly used for building infrastructure like concrete blocks, tetrapods, and roads. However, recent studies have demonstrated its ability to enhance soil structure and increase the availability of nutrients for plants.
Trials have demonstrated that nickel slag is effective as a plant nutrient source and improves soil structure, particularly in post-mining areas. In addition to reducing waste, this new idea helps ecosystems recover, makes it easier for reclamation plants like Sengon and Cajuput trees to grow, and makes the best use of land mined for productive and long-term uses.
This initiative also provides social benefits by generating employment opportunities for local communities, reinforcing Harita Nickel’s commitment to long-term social value creation. By reducing the volume of waste requiring extensive management and optimizing resource utilization, Harita Nickel actively contributes to minimizing environmental pollution risks and enhancing the productivity of reclaimed land.
"The utilization of nickel slag as a soil ameliorant is not just about waste management; it is a proactive step toward ecosystem restoration and creating a better future for local communities," she stated.
Harita Nickel continues to utilize resources wisely and responsibly as part of its sustainability strategy, including mineral conservation and sustainable downstream processing. Through this innovation, the company further solidifies its position as a leader in sustainable nickel mining, integrating environmental stewardship, social responsibility, and transparent corporate governance to drive long-term positive impact.
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