In Indonesia, the implementation of Good Mining Practice is not merely an operational standard, but a mandatory requirement regulated under Law Number 3 of 2020 and further strengthened through Ministerial Decree of the Ministry of Energy and Mineral Resources Number 1827 K/30/MEM/2018 as a technical guideline for conducting responsible mining activities.

In practice, Good Mining Practice begins at the mine planning stage. Companies cannot focus solely on extracting high-grade ore or cherry picking, but must ensure that mining plans are developed comprehensively, covering exploration, operations, and mine closure while referring to valid data and applicable technical standards.

Safety remains one of the highest priorities in the implementation of GMP. All operational activities must be supported by the implementation of the Mining Safety Management System (SMKP), effective risk control measures, and ensuring that every worker possesses competencies aligned with their respective roles and responsibilities.

From an environmental perspective, GMP ensures that mined-out areas are not simply left unmanaged until the end of mine life. Top soil separated during the early stages of operations is carefully stored to preserve its quality, before being reused during reclamation and revegetation processes so that land can be progressively restored. The management of acid mine drainage and tailings is also carried out through systems and technologies specifically designed to minimise potential impacts on the surrounding environment.

Beyond technical and environmental aspects, Good Mining Practice also places communities as an essential part of sustainable operations. Through Community Development and Empowerment Programmes mining companies must ensure their presence creates sustainable economic benefits, ranging from prioritising local employment opportunities, empowering local SMEs and vendors, to developing infrastructure that meets community needs. This approach forms an important part of maintaining the social licence to operate, or public trust towards company operations.

Although the implementation of GMP faces various challenges, including investment in environmentally friendly technology, complex geographical conditions, and pressure to meet production targets, these principles remain a critical foundation in ensuring mining operations are carried out responsibly and sustainably.

Through the consistent implementation of Good Mining Practice, the mining industry continues to demonstrate that responsible operations do not simply generate economic value, but also leave behind well-managed environments, stronger and more independent communities, and sustainable benefits for future generations.

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LADR is an internal company approval mechanism that ensures any activity with the potential to disturb land is conducted in accordance with applicable permits while also considering environmental protection. Through this procedure, the area proposed for clearing is first verified to ensure alignment with environmental documents such as the Environmental Impact Assessment (AMDAL – Analisis Mengenai Dampak Lingkungan) and its supporting documents.

Read Also: The Importance of Environmental Impact Assessment (EIA) in Mining Management

In addition, every LADR submission undergoes evaluation by management and the environmental team. This process ensures that the proposed land disturbance area is strictly aligned with operational requirements and that all potential environmental risks have been identified and properly managed from the outset.

Biodiversity Management and Mitigation Hierarchy Implementation

Another important aspect of this procedure is the protection of biodiversity. The operational area of Martabe Gold Mine is located near the Batang Toru ecosystem, which is known for its high biodiversity and serves as a habitat for various protected wildlife species. Therefore, before any land clearing takes place, the company requires a pre-clearing survey, an initial assessment conducted to identify the presence of important flora and fauna within the proposed area.

In addition to the preliminary survey, a field inspection is conducted no later than 24 hours before land clearing activities begin. The team carries out a direct inspection to ensure that no protected wildlife—such as orangutans, tigers, pangolins, or hornbills—are present in the area. If any indication of these species is found, land clearing activities must be temporarily halted until the situation is confirmed to be safe.

This approach is aligned with the mitigation hierarchy principle in environmental management, which prioritises avoiding impacts, minimising habitat disturbance, and rehabilitating areas that have already been affected. At Martabe Gold Mine, areas that are no longer in use are rehabilitated through land reshaping, soil quality improvement, and replanting with local plant species.

Through the implementation of the LADR procedure, all land disturbance activities at Martabe Gold Mine are carried out in a controlled and well-documented manner while maintaining a strong commitment to environmental sustainability in the surrounding operational area.

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One of the key initiatives consistently implemented is the regular monthly collection of water samples. This activity is not merely routine, but an essential step to ensure that water quality is maintained through systematic monitoring processes and testing conducted in accredited laboratories.

In its implementation, the company collaborates with an Integrated Team comprising representatives from government, academia, and local communities, including representatives from 15 villages surrounding the mining area on 14^th March 2026. Water samples are collected from several monitoring points, including the Water Polishing Plant, the upstream section, and the downstream section of the Batang Toru River. The laboratory test results serve as the basis for joint evaluation to ensure that water quality meets the standards set by the government.

Read Also: Ensuring Water Process Meets Quality Standards, Joint Team Conducts Sampling from the Water Polishing Plant and Batang Toru River

The Head of the Pollution and Environmental Damage Control Division (PPLH) of the Environmental Agency, Herman S. Siregar, stated that this activity forms part of regular and transparent monitoring efforts to ensure environmental quality is maintained. He emphasised that the involvement of multiple stakeholders in the Integrated Team is key to maintaining the objectivity of the monitoring results.

Meanwhile, Supervisor Monitoring West Block of Agincourt Resources, Dahlia Hasibuan, explained that the monitoring process is carried out routinely in accordance with established procedures and involves testing in accredited laboratories. She highlighted that the monitoring results serve as an important basis for evaluation and sustainable environmental management.

Agincourt Resources views this collaboration as a strategic effort to maintain public trust while ensuring that all environmental management processes are conducted responsibly. Through strong synergy with the government and stakeholders, Agincourt Resources remains committed to upholding transparency, strengthening oversight, and ensuring that every environmental management effort is realised through concrete and sustainable actions.

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