Recently, the company's core process—the "Functional Group Grafted Modified Fiber for Malodorous Gas Purification
Technology"—was officially launched. This technology is based on self-developed reactive performance fibers (RPF),
which introduce functional groups such as amine and carboxyl groups to achieve efficient adsorption and in-situ
regeneration of ammonia, hydrogen sulfide, and various organic/inorganic acid-base gases. The purification efficiency reaches 95%–99%,
with a system pressure drop below 500 Pa and a fiber service life of up to 5 years.

With the upcoming release of the new version of the Emission Standards for Odor Pollutants (GB14554-201X),
the plant boundary requirement has been changed to perimeter control, and exhaust stack emission limits have
been further tightened. As a result, odor control pressure is increasingly growing across industries such as municipal
wastewater and sludge treatment, agricultural and livestock farming and processing, and chemical and pharmaceutical
manufacturing.

Compared with traditional biofilters, activated carbon adsorption, and spray scrubbing systems, our functional group
grafted modified fiber odor control technology offers significant advantages, including a small footprint, low energy
consumption, stable operation, and no secondary pollution. It has already been applied at scale in wastewater
treatment, sludge disposal, chemical smelting, and other fields. Measured emission concentrations are well below
the new national standard limits, annual operating costs are reduced by approximately 50% compared with
conventional processes, and carbon reduction per project can reach several hundred tons per year.

This technology is widely applicable for odor treatment in municipal wastewater and sludge treatment, agricultural
and livestock farming and processing, chemical and pharmaceutical manufacturing, food processing, and waste
disposal. It can efficiently treat ammonia, hydrogen sulfide, trimethylamine, and various acid-base waste gases,
and is also suitable for deep purification of process gases in industrial production and for micro-pollution environmental control.

In addition, this technology has been included in the Ministry of Ecology and Environment's 2025 National Technical
Catalog for Pollution Prevention and Control as an encouraged technology, marking national recognition of our
company's technological leadership in the field of deep odor gas treatment. The company will take this opportunity
to continue promoting the application of efficient, low-consumption, and green waste gas treatment equipment
across a broader range of industries, contributing to the achievement of the "dual carbon" goals.
Address:No. 598, Jinshatan Road, Huangdao District, Qingdao