Grabuma has successfully conducted Mine Valuation training programs for PT Timah Tbk, PT AKA Geosains Consulting, andPT Aneka Tambang Tbk (Antam). These collaborations underscore Grabuma’s expertise and its role in equipping professionals within these organizations with essential skills in mine valuation.
PT. Timah, TBK
This course was carried out in September 2018 at PT. Timah Head Office, Pangkal Pinang, Bangka Belitung. This course discussed the mine valuation from exploration through production including the discount rate based on the mineral assets. This course introduced the market-based approach, cost-based approach and income-based approach. This can determine the most appropriate approach to value the properties based on the level of engineering according to the American Association of Construction Engineering (AACE) standards. The discounted cash flow (DCF) was discussed for the Feasibility Study and Bankable Feasibility Study including the most appropriate discount rate. This course also introduced the real option value (ROV) that can be used as the alternative valuation model based on the probability.
PT. AKA Geosains Consulting – Mine Valuation using determenistics & probabilistics approaches
This course was carried out from 6 – 7 May 2024 at PT. AKA Geosains Head Office, Tangerang. This course covers global valuation standards for mineral properties, valuation methods (market, cost and income approaches), price prediction using qualitative analysis, cost assessment using top-down & bottom-up approaches, cost adjustments (escalation, country, capacity and installation), cost estimation using the updated O’hara model and equilibrium model, cost curve algorithm, discount rate (WACC, CAPM, RADR & Risk- Build Up), NPV and RANPV, real option and radial basis function.
PT. Aneka Tambang, Tbk Unit Geomin – Mine Valuation from exploration through production
This course was carried out from 14 to 17 November 2023 for Geomin Unit, Jakarta. This course discussed the mine valuation from exploration through production. This course introduced the market-based approach, cost-based approach and income-based approach. This can determine the most appropriate approach to value the properties based on the level of engineering according to the American Association of Construction Engineering (AACE) standards. The discounted cash flow (DCF) was discussed for the Feasibility Study and Bankable Feasibility Study including the most appropriate discount rate. This course also introduced the real option value (ROV) that can be used as the alternative valuation model based on the probability
PT. PAM Minerals
This course was carried out from 9 – 11 December 2024 in Jakarta. This covered the valuation methods (market, cost and income approaches), global valuation standard (CIMVAL, VALMIN and SAMVAL), project status according to the American Association of Cost Engineers (AACE), net present value computation and real option values. In market approach, this course introduced the expected value using the mineral system probabilities that was proposed by Dr. Oliver Kruezer et al in 2008. This system developed the future exploration value using the probabilistic cost approach. While, the project valuation was selected based the best possible NPV scenario. These scenarios were simulated using the Monte Carlo. In determining the revenue, this course provided the cash cost algorithm to forecast the future price. While, the operating and capital costs were determined using top-down and bottom-up approaches. This course also introduced the cost estimation using regression, exponential, probabilistic (binomial tree) and machine learning methods (support vector machine and artificial neural networks). The discount rate was computed using WACC, CAPM and RADR based on the project discount rate. Finally, the market vauation was determined using the RANPV and DNPV based on the probabilistic inputs. The Real options was discussed that this offered the managerial flexibility in valuing the properties.
