Ukrainian Foreign Minister Pavlo Klimkin believes that Russia, which annexed the Crimean peninsula, is responsible for the acidic emissions in Armyansk...Armyansk residents continue to complain about health deterioration, an acrid smell in the air, and throat irritation, especially in the evening, following the emissions which took place at night between August 23 and 24...According to preliminary findings of the investigation, the pollution was...caused by the vaporization of the contents of an acid storage facility belonging to Crimean Titan. The Crimean Titan plant started operations in 1971, and was acquired by Dmitry Firthash’s Group DF in the early 2000s...In 2014, after Russia annexed Crimea, Dmitry Firtash changed the plant’s management structure. In October, Group DF sold the factory to a Russian subsidiary of LLC Titanium Investments. In 2015, PJSC Crimean Titan was renamed Ukrainian Chemical Products.