original_query: What was the purpose of the RusVinyl plant production in 2014?
query: What was the purpose of the RusVinyl plant's production when it started in 2014?
answer: In 2014, production started at the RusVinyl plant, a joint venture established to construct a polyvinyl chloride (PVC) plant with an annual capacity of 330 kilotonnes of PVC and 225 kilotonnes of caustic soda.