Dear investor: Hello! The Company has not conducted any on-site investor visits recently. Currently, the Company has received the bid-winning notification for five sections of the 10,000-ton battery-grade lithium carbonate project at the Zhabuye Salt Lake in Xizang sent by East China Engineering Science and Technology Co., Ltd. These five sections include East China Company–Xizang Lithium Carbonate–Lithium Deposition-Sodium Carbonate Recovery Nanofiltration System, Section I Nanofiltration System, Nanofiltration Pretreatment System, Sodium Carbonate Recovery Nanofiltration System, and Multi-stage Nanofiltration System. The specific amount of the project will be agreed upon in subsequent related contracts and is expected to have a positive impact on performance in 2022 and beyond. Thank you for your attention, please be aware of the investment risks.

Dear investor: Hello! The implementation period of the recently awarded major projects does not fall within 2021, and is expected to have a certain impact on future performance. For specific details, please refer to the relevant announcement disclosed by the Company on CNINFO.

Dear investor: Hello! The Company will strictly adhere to relevant laws and regulations to promptly disclose major events that meet information disclosure standards. Investors are welcomed to communicate with the Company by following the Company's WeChat official account or investor hotline, and email, etc. Thank you for your attention.

Dear investor: Hello! The Company does not produce products such as phosphorus trichloride, phosphorus pentachloride, and chloromethane. The Company's main business focuses on water treatment and water resource reutilization, providing in-depth solutions, equipment, and operational services for industrially challenging wastewater and municipal sewage based on different regions and water qualities.

Dear investor: Hello! The Company's technology can provide customized comprehensive wastewater treatment solutions based on different industries (including medical wastewater) and water qualities. In the field of medical wastewater treatment, the Company has undertaken desalination services for the medical wastewater generated from Xinxing Huaxing Pharmaceutical Factory.

Dear investor: Hello! The zero-discharge salt separation technology for high-salinity water in the Company is composed of unit operations such as physics, chemistry, membrane separation, and evaporation crystallization. These unit operations, when combined and customized, can be used for lithium extraction projects. The Company is actively expanding related businesses.

Dear investor: Hello! The main business focuses on wastewater resource recycling and deep water treatment, leveraging a series of core technologies developed in-house to provide clients with water treatment solutions, operational management, technical services, and manufacturing and sales services. The Company has initiated a new environmental governance model of "municipal + industrial collaborative governance" and is a leading enterprise in China for sewage reutilization and advanced water treatment. For detailed information, please refer to the prospectus and periodic reports disclosed by the Company.

Dear investor: Hello! The Company has not received any on-site visits from investors recently.

Dear investor: Hello! The Company has not yet ventured into the nuclear-contaminated water treatment.

Dear investor: Hello! The Company focuses on providing solutions, equipment, and operational services for zero-discharge salt separation projects and other related projects in the hydrogen energy production sector, centered around water treatment and water resource recycling. Collaborating enterprises include Baofeng Energy, Meijin Energy, and Huachang Chemical, among others, which are leading companies in the hydrogen energy industry.

Dear investor: Hello! The Company will actively expand related businesses, with no current backlog of orders. Thank you for your attention.

Dear investor: Hello! The Company has long been involved in coal chemical industry wastewater treatment and resource recycling, with core technologies such as high-salinity water zero-discharge salt separation for projects like China Coal Yuanxing high-salinity water treatment, and Inner Mongolia Huineng coal chemical reuse water project. These core technologies of high-saline water separation and zero discharge can be applied in pollution control processes in coal chemical production, specifically in coal chemical wastewater reuse and zero discharge. Thank you for your attention.