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The paper is devoted to tin ores as an alloying impurity in the bronze production by the ancient population of the Dnieper-Don region in the Late Bronze Age. The eastern and western supply vectors providing the local population with both ore (cassiterite) and its products are considered. The author draws attention to the assumptions of some researchers not confirmed by geological surveys about the possibility of finding tin deposits in the Donbass and Krivoy Rog basin, which could probably have been developed in the Early Metal Age. An opinion was given regarding the production of bronze from copper ore with a high content of metals - impurities in the mineral phase and separately from polymetallic ore. In ancient times for the development of any mineral, its availability for development, as well as a great volume or high content of useful mineral in ore were indispensable conditions. Due to existing technologies, the requirements for minerals in antiquity were much higher than modern ones. On the issue of tin raw materials for bronze production of the ancient population of Ukraine, attention is drawn to the assumption, not yet confirmed by geological surveys of some researchers (S.I. Tatarinov,  D.P. Kravets, D.P. Nedopako) on the possibility of finding tin deposits in such ore-rich regions of Ukraine as the Donbass and Krivoy Rog. The experimental work carried out on the basis of ores of the Kartamysh ore occurrence have indeed confirmed the idea of chemical elements redistribution, when some metals decrease and others increase. This trend with reference to the results of spectral analyzes of Bakhmut ores, slags and products of the Donetsk Mining and Metallurgical Center, performed by E.N. Chernykh was noted by S.I. Tatarinov. However, to obtain bronze, a high percentage of bronze-forming impurities is required, including tin in the minerals. However, the copper and polymetallic ores of Donbass do not contain enough tin in the initial ore to produce tin bronze. A series of our experiments yielded just pure copper. Thus, the author reposes on the commune notion, according to which it is not possible to obtain bronze from copper ores of Donbass and bronze without on purpose input of the appropriate elements into the melt.

To the issue of tin bronzes over the area of the Dnieper-Don region in the late bronze age