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Environmental Mining

1. Environmental Mining The main objective of environmental management at WBN is: to fulfill the obligations stated in the RKL, RPL, and AMDAL compliance with regulatory requirements the enhancement of sustainable environmental conditions Water Pollution Control The principle of mitigation hierarchy in managing environmental impacts: Avoidance Mitigation Reduction Offsett Rehab

2. Environmental Mining Water Pollution Control The types of water pollution are as follows: 3 . Pollution by Domestic Waste It occurs when water from daily life activities in households, offices, such as wastewater from washing and sewage from toilets, is directly discharged into water bodies without being treated first. 2. Ground Water Pollution When pollutants penetrate the soil layers and contaminate aquifers. The sources of pollution can originate from spills of Hazardous and Toxic Substances that penetrate deep into the soil layers. Surfaces Water Pollution It occurs when pollutants contaminate surface water sources such as rivers, lakes, and oceans. The sources of pollution can originate from industrial activities, mining, and other.

3. Sparing equipment is used to measure the concentration of a wastewater quality parameter and the flow rate of wastewater through automatic, continuous, and networked measurement and reporting of wastewater flow rates. Sewage Treatment Plant (STP) Biotech is a domestic or wastewater treatment system that utilizes biological technology (biotechnology) to clean wastewater before it is discharged back into the environment or reused. Monitoring Environmental Mining Water Pollution Control Permen LHK RI Number 93 of 2018 regarding SPARING

4. 4 5 6 State Forest and Customary Forest. Forestry According to Law Number 41 of 1999, forests are classified based on their status and functions as follows: The main components forming a forest consist of Abiotic, Biotic, Autotroph, and Heterotroph. . forest is defined as an ecosystem unit consisting of a land area containing living natural resources dominated by trees within its natural environment, which cannot be separated from each other . Law Number 41 of 1999 forestry is a management system related to forests, forest areas, and forest products conducted in an integrated manner. 1) Forest Based on Their Status 2 ) Forest Based on Their Function State Forest is a forest located on land not burdened with land rights, including village forests and customary forests. Customary Forest is a forest located on land burdened with land rights. Production Forest is a forest area with the function of producing forest products. Conservation Forest is a forest area aimed at preserving biodiversity along with plant and animal ecosystems, such as National Parks, Nature Reserves, and others. Protected Forest is a forest area designated for the protection of life systems to regulate water flow, prevent floods, prevent erosion, and others. Environmental Mining

5. Forestry The approval for the use of forest areas The approval for the use of forest areas is the approval for the utilization of a portion of forest areas for development purposes outside forestry activities without altering the function and designation of the forest area. Procedures for requesting the use of forest areas: it includes meeting administrative requirements consisting of a letter of application, Business Entity Profile (Tax ID, ID Card, Articles of Association), Mining Business License, Environmental Impact Assessment (UKL and UPL), Recommendation from the Governor and Regent, and Requirements stating the willingness to fulfill all obligations. Release of Forest Areas Area release is the change of function of HPK (Protected Forest) or Production Forest areas into non-forest areas for development purposes outside forestry activities Environmental Mining Vegetation observation Land Clea ring

6. 4 Land Clearing is the activity of clearing stands of trees to carry out desired activities such as mining. Environmental Mining Forestry Land Clearing Principles of Land Clearing: minimizing the area to be cleared to reduce the risk of erosion and minimize impacts on flora and fauna building appropriate infrastructure to control erosion and sedimentation before land clearing, which can help protect the surrounding environment

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