sentences:  Once complete in 2020, sulfur emissions will be cut by up to 75% as a result of the work done.In April 2018, amid rising pressure from the Russian government and Western investment funds, the company announced it would be investing in a US$1bn processing plant, which would convert sulphur dioxide produced during the metal smelting process into gypsum.The plant will be finished in 2022 in order to meet obligations to reduce its harmful emissions by 75% or risk financial fines 100 times higher than the ones at the time.