Minerals and mined materials will inevitably have an environmental footprint. CITA acknowledges that our activities have impacts to the natural environment, including on land use, energy, emissions, waste, water and materials from supporting activities. Therefore, we commit to conduct mining and any other supporting business activities in a manner that can minimize adverse impacts on the environment, support protection of the natural environment and ecosystems through responsible environmental stewardship, strong management system and continuous improvement.

CITA is committed to managing waste generated in all stages of its business whether it arises from ore processing such as bauxite residue classified as non-hazardous waste, or waste generated from supporting activities such as used oil, medical waste, and laboratory waste classified as hazardous waste.

One of the main waste types we manage is bauxite residue, a by-product created during the production of metallurgical grade bauxite. This residue has no chemical involved and is treated and screened, washed, and dewatered before being placed in the waste treatment facility. Our settling ponds for these residues are constructed on Reinforced Soil Foundation (RSF) areas, while taking into account runoff water conditions. Settling ponds are equipped with emergency drains, filtration points and drainage systems.

Air quality is one of the main concerns in the mining sector, not only because it relates to health issues, but also because of the complexity of mining operations with various potential sources of emissions. CITA implements measures to reduce the Company's emissions, including installing solar panels and conducting third-party monitoring of ambient air and emissions. We also conduct environmental management and monitoring measures to maintain air quality around our operational areas. More information can be accessed in the 2023 Sustainability Report.

Good water management practices in the mining industry aim to reduce raw water use, improve water use efficiency, and prevent environmental impacts.

At the Bauxite Processing Plant(BPP) facility, we implement a closed water loop cycle for ore washing. Used water is purified and reused again to wash ore.

In addition, although we do not discharge wastewater into water bodies, we are committed to conducting regular monitoring and ensuring that water quality always meets regulatory requirements. As part of responsible water management, we continue to strive and initiate better programs for water conservation that are developed from year to year, among others:

• Maintain river boundaries;

• Construct drainage and sedimentation ponds around the mine block with dimensions necessary to accommodate runoff during peak rainfall periods; and

• Conduct regular maintenance of drainage and sedimentation ponds.

CITA carefully considers its direct and indirect impacts on biodiversity. Given the importance of biodiversity, the Company conducts various studies, such as identification of Ramsar sites, Endemic Bird Areas (EBAs), Important Bird and Biodiversity Areas (IBAs), and evaluation of water quality, habitats and ecosystems, and invasive species.

Based on the AMDAL (Government-required environmental and social impact assessment), CITA's operational areas are not located within or adjacent to, or in contact with any protected species, whether arboreal, terrestrial or aquatic biota. Regardless, we are committed to protecting the surrounding ecosystem, particularly where biota has co-evolved with the mineral substrate.

Land use is part of the Company's Scope-1 (Direct Emissions) calculations. CITA is committed to mitigating climate change impacts by ensuring that land restoration is carried out immediately after mining is completed. We focus on minimizing impacts on biodiversity during land use planning, land clearing, as well as land restoration (reclamation and/or revegetation).