September 3, 2022. By inquiring about the commencement announcement of Changyi Yuanli Chemical, it was shown that as of June 7, 2023, Changyi Yuanli Chemical had started construction on September 3, 2022, and this centralized commencement activity was held in the way of "video connection of main venue+sub-venue", so Changyi Yuanli Chemical had started construction on September 3, 2022. Changyi is a county-level city sponsored by Weifang, located in the northwest of Shandong Peninsula.