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2018-2021
Normal production
2022
07-15
August 20, 2021 - Present
2017
Parking and maintenance
2012-2016
August 2021
Equity change, shareholder changed to Shanghai Zhongyou Yunfeng Shipping Oil Supply Co., Ltd
November 2012
Test production by driving
July 2012
Project Completion
May 2011
Infrastructure construction starts
December 2010
Lugan Qifeng's 300,000-ton-per-year polystyrene project has been approved.