1. Shandong Huier Energy Saving Technology Co., Ltd.: Lv Jinghui is the legal representative, shareholder and senior manager.
2. Wante (Shandong) Comprehensive Energy Co., Ltd.: Lv Jinghui is the legal representative, shareholder and senior manager.
3. Jinan Zhu Bo Architectural Design Co., Ltd.: Lv Jinghui, legal representative, shareholder and senior manager.
4. Shandong Xingtong New Energy Technology Co., Ltd.: Lv Jinghui is the legal representative, shareholder and senior manager.