Nickel ore reserve estimation is a complex process that transforms original drilling data into a mineable and economically feasible reserve through several stages, including data validation, geological interpretation, resource modeling, and mining modification factors. The workflow begins with raw drilling information such as lithology, assay results, geological structures, geotechnical data, and hydrogeological conditions. These datasets are then validated through QA/QC procedures before being interpreted into geological domains, wireframes, and block models using estimation methods such as IDW or Kriging. Afterward, mining, geotechnical, hydrogeological, and economic constraints are applied to convert mineral resources into ore reserves that are technically and economically mineable. However, reserve estimation is not purely a mathematical or software-driven process. The final reserve result strongly depends on geological interpretation and the geological sense of the person building the model. Even when using the same drilling dataset, different geologists or engineers may produce different reserve outcomes due to differences in experience, understanding of lateritic nickel deposits, interpretation philosophy, and assumptions regarding ore continuity and geological boundaries. In reality, reserve models are not only built from data, but also from the quality of geological understanding behind the interpretation itself. from now on, I will share my Knowledge for just sharing :D Cherss