Public Notice: Extension of Trial Operation for Phase I Project of Feymer Technology (Anhui)

All production units and supporting facilities of the Phase I project, which is designed to produce 225,000 tons of water-soluble polymers and 220,000 tons of functional monomers annually by Feymer Technology (Anhui) Co., Ltd., have been fully completed. The project launched trial production on May 27, 2025. Since the designed production capacity has not been achieved yet, we apply to extend the trial operation period to May 26, 2026. Relevant information about project construction and environmental protection facilities is hereby publicized as follows:

1. Basic Environmental Information

The project is located in Anqing High-Tech Industrial Development Zone. We entrusted Suzhou Qingquan Environmental Protection Technology Co., Ltd. to conduct the environmental impact assessment on November 15, 2023, and obtained the official approval from Anqing Municipal Bureau of Ecology and Environment on November 25, 2023. The plant covers a total area of approximately 368 mu. All production facilities, utility systems and environmental protection facilities for Phase I have been completed.

2. Pollution Prevention & Control Facilities

• Air Pollution Control Systems
• Waste gas from storage tanks is pre-treated by primary water scrubbing, then combined with process waste gas from workshops. The mixed gas is purified via water scrubbing, defogging and activated carbon adsorption, and discharged through the 30-meter-high chimney DA001.
• Drying waste gas of anionic polyacrylamide in Solid Workshop 1 is treated by cyclone dust removal and water scrubbing. Hydrolysis waste gas is disposed by primary acid absorption. The combined gas is discharged via the 30-meter-high chimney DN003.
• Drying waste gas from the cationic production line in Solid Workshop 3 is treated by cyclone separation and water scrubbing, then discharged through the 30-meter-high chimney DA002.
• Polyurethane waste gas in Class A workshop is treated by lye spraying, water scrubbing and two-stage activated carbon adsorption, and discharged via the 30-meter-high chimney DA005.
• Waste gas from the hazardous waste warehouse is purified by two-stage activated carbon adsorption. Waste gas from the sewage treatment station is treated by two-stage acid & alkali absorption. Both types of gas are discharged through the 20-meter-high chimney DA004.
• Laboratory waste gas is treated by two-stage activated carbon adsorption and discharged via the 20-meter-high chimney DA006.
• Wastewater Treatment System

Industrial wastewater is treated in the on-site sewage treatment station through regulating tank, hydrolytic acidification tank, AO process and MBR process. The qualified effluent is delivered to Yatong Environmental Protection West City Sewage Treatment Plant.

3. Solid Waste Disposal

A dedicated hazardous waste warehouse with an area of 720 square meters is built on site. All hazardous wastes are handed over to qualified third-party organizations for standardized disposal.

4. Noise Reduction Measures

Main noise sources include pumps, fans and other power equipment. We optimize equipment layout, install silencers and reinforce equipment bases. Noise is also reduced by plant greening and sound insulation. Regular inspection and maintenance are conducted to ensure stable operation of high-noise equipment.

5. Environmental Risk Prevention Facilities

Two emergency wastewater tanks (2,954 m³ and 4,700 m³) and one initial rainwater tank (4,900 m³) are constructed. Emergency wastewater and initial rainwater can be collected automatically without external discharge. Online monitoring and alarm devices for hazardous gas are installed, and strict management of hazardous waste is implemented. During trial operation, we will strengthen equipment maintenance to ensure stable discharge of pollutants and eliminate environmental risks.

6. Potential Risks & Countermeasures During Trial Operation

Inexperienced operation may lead to excessive discharge of wastewater and waste gas. We have formulated comprehensive solutions:

• Professional training for all operators, delivered by technical engineers from environmental protection equipment manufacturers;
• Single-unit commissioning of all environmental facilities has been finished, and all equipment is ready for trial operation;
• Sufficient environmental protection consumables and auxiliary chemicals are prepared in advance;
• Online monitoring devices for wastewater and waste gas are fully put into service for real-time supervision.

We will keep optimizing the operation and management of environmental facilities to guarantee long-term stable and qualified discharge during the whole trial production period.