PROPER (Program Penilaian Peringkat Kinerja Perusahaan), or the Company Environmental Performance Rating Program, is a national-level enterprise environmental performance evaluation system led by the Indonesian government. It includes 12 assessment indicators: compliance with wastewater discharge standards, hazardous and general waste management, water pollution control systems, air pollution control systems, marine pollution prevention, noise control, energy-saving measures, greening projects, ISO 14001 certification, implementation of CSR projects, execution of eco-efficiency policies, and commitment from senior management. The assessment uses a five-tier color rating system (ranging from black to gold) to annually evaluate and publicly announce companies' environmental compliance and sustainable development performance. A blue rating indicates that the company fully complies with environmental regulations and maintains a good level of compliance.

Fayez Permadi, Deputy General Manager of Public Affairs at Huayou Indonesia, represented the company at the award ceremony. He stated, "This honor not only reflects our commitment to compliance and environmental protection but will also inspire us to continuously pursue higher levels of environmental performance, moving towards green and sustainable development goals."

This achievement highlights Huayue Nickel Cobalt’s dedication to environmental sustainability and responsible business practices, setting an example for other enterprises aiming to integrate green principles into their operations.