This year, we have prepared a report including 13 papers. We continue to update all the research results on the MOL webpage www.ualberta.ca/mol on the members section. Sponsors have access to current and past research results, publications, prototype software, and source code. Let’s review the contributions in the MOL Report Seven (2015/2016) by considering some of the main contributors. In paper 101, Shiv presents a simulation optimization approach for uncertainty based short term planning and proactive decision making, which provides substantial economic and operational gains. An optimization tool is presented in this paper to achieve uniform desired grade and tonnage feed to processing plants, and maximum production to comply with medium to long term roduction schedule with minimal shovel movement within a simulation model. The system considered in his model is an open pit mine with truck-shovel operations. The system includes trucks, shovels, plant crushers, waste dumps, haul road network and mining faces (scheduling polygons) with different material types based on the medium to long term production schedule. Shiv also details the development of simulation and optimization models in paper 203. He presents the implementation of the framework on an iron ore mine case study for the verification through scenario analysis. The simulation optimization framework/tool uses a discrete event simulation of mine operations, which interacts with a goal programming based mine operational optimization tool (MOOT), to capture the performance and develop uncertainty based short term schedule. Navid presents an application of cut-off grade optimization to oil sands production scheduling and waste management in paper 102. His research investigates the impact of dynamic cut-off grade on the NPV of an operation. The objectives are to: 1) determine the life of mine optimum cut-off grade profile and corresponding ore tonnages to maximize the NPV of the operation; 2) determine the dyke material schedule for dyke construction; and 3) assess the impact of stockpiling and stockpile reclamation with limited duration. Scenarios investigated includes: no stockpiling; stockpiling and reclaiming at the end of mine life; and stockpiling with limited reclamation duration. The model generates an optimum cut-off grade policy and a uniform production schedule for ore and dyke material over the mine life. The benefit of using the stockpile with two reclamation methods was presented. Reclaiming the stockpiled material after the mining operation resulted in an increased total ore tonnage. Also, the reclamation of stockpiled material simultaneously with the mining operation increased the total ore tonnage as well as maintaining the average head grade required by the processing plant. By maintaining the average head grade, the total NPV generated in the third scenario was higher than the second scenario. Dylan has been working towards developing a conceptual framework for managing mineralized mine waste as a future resource in paper 103. Currently, even though most natural resources are non-renewable, the majority of mineral resources are not mined until physical depletion, but rather current economic depletion resulting in valuable minerals being left behind. The main focus of this research is to: a) propose and implement a conceptual framework for a waste management system that enables reprocessing of mineralized waste directly by the processing plant; and b) propose legislative recommendations for life of mine waste management particularly for non-renewable natural resources. The framework suggest that by reprocessing the mineralized waste when metal prices fluctuate favourably and processing technology advances, less metal will be left behind resulting in sustainable mining operations. Ahlam started her PhD research in open pit mine planning and waste management optimization. Her research will develop a multi-objective stochastic mathematical programming model considering grade uncertainty. She has done a literature review on open pit mine planning and waste management and oil sands mining (paper 104). The paper discusses heuristic, meta-heuristic and deterministic optimization approaches, as well as application of artificial intelligence and uncertainty-based approaches to mine planning and waste management. Limitations of current mine planning models have been outlined. Mohammad and Shiv developed a framework that takes production and maintenance schedules, haul road network, truck list and allocation strategy, shovel list, operation control parameters, and other probability distribution functions as inputs through spreadsheets and produces the reports required for analyzing the system performance and comparing expansion and modification scenarios. In paper 201, they explain all the steps required to develop and implement a simulation model by automating the procedure through programming and flexible model building and concludes by presenting normalized operation versus simulation statistics and plots to show the accuracy and reliability of their simulation model. Ali presents a truck-shovel simulation reliability analysis with embedded dispatch optimizer in paper 202. A general reusable discrete-event simulation tool is developed and verified to analyze the behavior of open pit mining operations. The simulation tool imitates the truck-shovel operation and its interaction with the mining fleet management systems. The simulation model is linked to the mine production schedule. The developed simulation tool accurately monitors the system’s major KPIs. The simulation model is run for predetermined number of replications over the desired planning time horizon to generate tight half-widths around the monthly and shift-based KPIs with high confidence level. The tool includes a thorough implementation of a dispatching logic which mimics real-world dispatching systems in allocating trucks to the neediest shovels on the shortest travel path. Moreover, a new algorithm is developed for truck allocation by MOL and was implemented in the system. Comparing the new algorithm with the common real world dispatching systems on a case-study provides a 10% improvement in the production of the operation. Firouz has been carrying out research on block-cave production scheduling using mathematical programming (papers 301 and 305). He models the production scheduling in block-cave mining to maximize the net present value of the project using MILP and also implements MIQP as non-linear tool to minimize the difference between the objective and the target tonnage of the mining project considering the related constraints of the operations. He uses mathematical programming as a strong tool to model the operation in block cave mining with the objective function in which minimizes the deviation of extraction from drawpoints. The problem was first formulated as a quadratic programming model then the problem was converted to a linear programming with absolute values. Technical and operational constraints such as mining capacity, average grade for production, continuous mining, drawpoint’s life, draw control and number of active drawpoints are considered for the operations. Testing both the quadratic and the linear model with absolute values for a real case mining project shows that the linear model with absolute values is easier and faster to solve. In paper 302, Amir discusses the caving process and all effective parameters. Then, he introduces the interaction matrix based on the rock engineering system (RES) to study the influencing parameters in rock mass fragmentation. The interaction matrix analyzes the interrelationship between the parameters affecting rock engineering activities. The interaction matrix for influencing parameters are established and coded by ESQ (Expert Semi Quantitative) approach. As a result, the high dominant or subordinate, and also the most interactive parameters, are introduced. The proposed approach could be a simple but efficient tool in the evaluation of the parameters affecting the fragmentation of rock mass in block-cave mines and as a result, useful in decision-making under uncertainties. Saha has been working towards development of a methodology to find the best extraction level under grade uncertainty for block-cave mining (paper 303). The main goal of the study is to develop a framework to find the best level of extraction under grade uncertainty. In this paper, several realizations are modelled by using geostatistical studies to consider the grade uncertainty. After determining the best extraction level, the production schedule is generated for the best advancement direction and in presence of some constraints at the extraction level using a mixed-integer linear model. Efrain, presents a methodology based on Sequential Gaussian Simulation (SGS) to obtain the optimum drawpoint spacing in paper 306. The optimized drawpoint spacing is used to maximize the profit since the extraction layout is highly essential for the economics of block caving. This study is opening a new horizon for using “All Realizations All the Time” as a new approach to solve one of the trickiest elements of blocks caving. He also compares recoverable reserves between simulation and kriging for block caving in paper 304. He conclude that despite the fact that the block caving design depends on many parameters and constraints and its evaluation is very challenging, an efficient extraction layout could be obtained by using a set of realizations. Managing a huge number of realizations is still a bit time consuming, hence the usage of 40 to 100 realizations is recommended. Moreover, hardware and software have been improving over the years.