An arrangement for providing explosive charging and a plug into a bore hole, such as a mining or tunnelling hole, comprising - a charging hose comprising at least one first conduit to be introduced into said bore hole and for introducing at least an explosive base material to an outlet of said first conduit and thereby into said bore hole, and - at least one plug configured to be introduced into said bore hole by the help of said hose, - wherein said plug has a diameter, the size of which is configured to be manipulated, after or during introducing into said bore hole at a certain depth, so that after said introducing the diameter of the plug is larger than before said introducing and so that the surface of the plug after manipulating the size of diameter essentially make a physical contact with the bore hole surface, - wherein said plug is introduced by said hose in a releasable manner so that after or during the manipulation of the plug diameter size the plug is configured to be released from the hose and to stay in said bore hole essentially at said certain depth, and - wherein said plug is configured to be introduced into said bore hole by the same in-out movement of the hose as used for introducing at least said explosive base material, characterized in that the hose comprises a second additional conduit for introducing additive material to an outlet of said additional conduit, and in that the arrangement further comprises a mixer in connection with the hose for mixing an explosive base material and additive material, wherein the first conduit is a first charging conduit, said first charging conduit and said second additional conduit being arranged into the common hose formed by said charging hose so that said explosive base material and additive material are provided via said conduits (103, 104) separately from each other, and wherein said explosive base material and additive material are configured to be mixed with each other after outlets of said conduits (103, 104) in order to provide said explosive charging into the bore hole wherein the outlets of said conduits are arranged before an outlet of the common hose and the mixer is located at the outlet of the common hose so that a portion of the common hose after the outlets of said conduits forms only one hose structure. - a charging hose comprising at least one first conduit to be introduced into said bore hole and for introducing at least an explosive base material to an outlet of said first conduit and thereby into said bore hole, and - at least one plug configured to be introduced into said bore hole by the help of said hose, - wherein said plug has a diameter, the size of which is configured to be manipulated, after or during introducing into said bore hole at a certain depth, so that after said introducing the diameter of the plug is larger than before said introducing and so that the surface of the plug after manipulating the size of diameter essentially make a physical contact with the bore hole surface, - wherein said plug is introduced by said hose in a releasable manner so that after or during the manipulation of the plug diameter size the plug is configured to be released from the hose and to stay in said bore hole essentially at said certain depth, and - wherein said plug is configured to be introduced into said bore hole by the same in-out movement of the hose as used for introducing at least said explosive base material, characterized in that the hose comprises a second additional conduit for introducing additive material to an outlet of said additional conduit, and in that the arrangement further comprises a mixer in connection with the hose for mixing an explosive base material and additive material, wherein the first conduit is a first charging conduit, said first charging conduit and said second additional conduit being arranged into the common hose formed by said charging hose so that said explosive base material and additive material are provided via said conduits (103, 104) separately from each other, and wherein said explosive base material and additive material are configured to be mixed with each other after outlets of said conduits (103, 104) in order to provide said explosive charging into the bore hole wherein the outlets of said conduits are arranged before an outlet of the common hose and the mixer is located at the outlet of the common hose so that a portion of the common hose after the outlets of said conduits forms only one hose structure.