This article develops an integrated indicator-based approach for measuring green efficiency in the mining industry using the case of Navoi Mining and Metallurgical Company. The study combines resource productivity, environmental load, energy value efficiency and green technology contribution into an Integrated Green Efficiency Index. The results show that green efficiency increased steadily between 2020 and 2025, while resource and environmental load declined. The proposed framework demonstrates that green modernization in mining should be treated not only as an environmental obligation but also as a measurable economic efficiency mechanism.