Ọdun 2011 March 2011, Shandong Longhua Awọn ohun elo Tuntun Co., Ltd ti ṣeto. Ọdun 2012 Okudu 19, 2012, laini iṣelọpọ ti ṣe ifilọlẹ ni aṣeyọri 2017 Oṣu Kẹrin ọdun 2017, laini iṣelọpọ polyether polyol gige-eti pẹlu ohun-ini ominira ti a fi sinu iṣelọpọ, ati didara ati tita awọn ọja POP ni ipo No.1 ni ọja ile. 2020 Oṣu kejila ọjọ 3, Ọdun 2020,IPOni Shenzhen iṣura Exchange 2020 Oṣu Keje 2020, Ẹka Qingdao ti ṣeto. 2021 Kínní 2021, ShAnhai Branch ti ṣeto.
