Vilnohirsk. Prospecting works in the area of Samotkan’ river in Dnipropetrovsk region, cental Ukraine.
Vilnohirsk. Malyshevskiy deposit of heavy mineral ores is found out.
Irshansk exploring and operational enterprise is built. (Irshansk EOE)
Subordination of Irshansk EOE to a Main office of titanium, magnesium and rare-metal industries (Mainrarmet) of Ministry of Non-ferrous metallurgy.
Vilnohirsk. Decree of the Council of Ministers of the USSR provides that Verhnedneprovsky State Mining and Metallurgical Plant should be built.
Irshansk. Building of a pilot mill.
Vilnohirsk. The start of building of a plant and settlement.
Irshansk. Convertion of “Mainrarmet” into Main office of titanium and magnesium industry (Maintitan) and Main office of rare metals industry (Mainrarmet). Irshansk EOE is subordinated to “Maintitan”. Startup of a pilot 50 liters floating mine. Start up of a pilot processing plant.
Irshansk. Admission of Irshansk EOE to coal-fuel plant of Kiev Economic Council.
Admission of Irshansk EOE to “Ukrbrowcoal”coal-fuel plant of Kiev Economic Council.
Irshansk. Putting into operation a floating mine №1.
Irshansk EOE a multicorporate enterprise of the coal-fuel plant of Kiev Economic Council.
Irshansk. Start up of development factory and 210 liters floating mine.
Vilnohirsk. The first train for production of zircon, rutile and ilmenite concentrates is put into operation.
Irshansk EOE is closed down as building of the main production facilities is ended. Since 27.02.1961 Irshansk Mining and Processing Plant became a multicorporate enterprise of the coal-fuel plant of Kiev Economic Council.
Vilnohirsk. The start of metallurgical production development.
Irshansk. Building of the first ESH 10/60.
Vilnohirsk became a town.
Irshansk. Assignment of Irshansk MPP and its subordination to the Main office of titanium and magnesium, rare metals industry and semiconductor materials (Maintitanrarmet) of Ministry of Non-ferrous Metallurgy.
Vilnohirsk. The plant was reconstructed.
Irshansk. Putting into operation Lemensky ore mine.
Irshansk. Putting into operation an openpit №2
Irshansk. Subordination of IMPP to the Main office of rare and alloying metals industry (Mainrarmet) MNM USSR.
Vilnohirsk. There was the second reconstruction of the plant in order to reach a full capacity.
Irshansk. IMPP is a member of “Unionrarmet” - All-Soviet Union industrial association.
Irshansk. vThe technology of recycling of technogenic raw material sources and extraction of precious metals was introduced.
Irshansk. Putting into operation an openpit №5
Irshansk. IMPP was integrated into “Rarmet” research and manufacturing association.
Irshansk. Assignment of associations, enterprises and organizations of the former Ministry of Iron and Steel Industry and Ministry of Non-ferrous Metallurgy to USSR Ministry of Metallurgy.
Putting into operation “Shershnevsky” openpit.
Vilnohirsk. Declaration of independence of Ukraine, choice of the market economy. The first export supply.
Irshansk. Stop of the Ministry of Metallurgy management functions.
Vilnohirsk. Replacement of conveying system by hydraulic transport.
Irshansk. Assignment of IMPP to Ministry of Industry of Ukraine.
Vilnohirsk. The plant became a part of SJSC “Ukrainian polymetals”
Irshansk. Putting into operation an openpit №7
Irshansk. Putting into operation an openpit №8
Irshansk. Putting into operation an openpit №9
Mining and Metallurgical Plant and Irshansk Mining and Processing plant became a branches of the State Enterprise “United Mining and Chemical Company”
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