"This final report summarizes our 3 year activites under four headings. The first is a description of our research aimed at a better understanding of the fragmentation process that follows blasting operations. We have used modern statistical physics methods to get distributions of fragments. Secondly, incorporation of our work in the simulations by the Sandia National Laboratories In Situ team of blasting experiments carried out in the US. Not only did the simulations gain in internal consistency, but an improvement was achieved in the comparison with oil-shale blasting experiments in the US. The third iten in our activity was our involvement with oil shale mining in Isreal, notably at the PAMA fields near Rotem. The participation of the Soreq group in the blasting operations and the explanation of the results by our transport equations model led to a clearer picture of the potentialities and difficulties in achieving the right type of fragmentation in bench blasting. Lastly, in section IV we have delineated a few direction, in which fragmentation- research much develop in the immediate future, so as to measure up to the demands of efficient mining and materials engineering."