In recent years, the Sino-US tariff war has continued to escalate, especially the "Liberation Day" high tariff policy implemented by the Trump administration after taking office in 2025, which has posed a severe challenge to the cooperation between Chinese and American companies. In this environment, dozens of tons of zero valent iron (hereinafter referred to as ZVI products) from Sagwell were successfully shipped to the United States, reflecting the irreplaceable nature of our products in the field of global soil and groundwater pollution remediation.
As an enterprise with many independent intellectual property rights, Sagwell uses advanced micro-nano technology to customize zero valent iron (ZVI) products with excellent adsorption and catalytic properties for different heavy metals and organic pollutants, which are widely used in soil and groundwater pollution control projects in the United States.
For pollutants such as benzene, toluene, ethylbenzene and xylene (BTEX) produced by leakage, zero valent iron (ZVI) has strong reducing properties and can degrade some organic pollutants (especially chlorinated organic matter) through electron transfer. When coexisting with oxidants, iron can also indirectly promote their decomposition through catalysis.
Improved efficiency of composite system:
In addition to single systems, ZVI can also form composite systems with other materials:
Iron-activated carbon composite materials:
ZVI-loaded activated carbon can significantly enhance the adsorption and catalytic degradation of BTEX
Ferrous Bimetallic System:
When ZVI is combined with palladium (Pd) or copper (Cu), the degradation of BTEX can be accelerated by catalytic hydrogenation or oxidation. For example, benzene can be reduced to cyclohexane (less toxic) by iron, while toluene, ethylbenzene, etc. are removed by adsorption.
Supply chain reshaping and technology dependence
The tariff war has prompted the United States to accelerate the decentralization of its supply chain from China, looking for alternative suppliers or promoting local technology research and development. However, Sagwell's zero valent iron powder products have unique advantages in micro-nano particle size control and reactivity, and it is difficult for the United States to find a complete replacement solution in the short term.
For example, for persistent organic pollutants (POPs) and heavy metals such as hexavalent chromium, Sagwell's ZVI can convert them into less toxic forms through chemical reduction, which is much more efficient than traditional pump-and-treat or bio-remediation methods. This technology reliance enables us to maintain market space amid the tariff war.
Crisis of confidence and market fragmentation
The Sino-US trade friction and tariff barriers have had a significant impact on the technical collaboration and industrial cooperation between the two countries' enterprises, especially on domestic suppliers that lack core competitive advantages, and the market risk coefficient has increased significantly. In this context, local suppliers that lack patent barriers, high-end technology or differentiated service capabilities will bear the brunt of the pressure of shrinking market share and urgently need to improve their risk resistance through technology upgrades or supply chain reconstruction.
Sagwell's 20-year partnership with an American environmental protection company reflects the importance of owning independent intellectual property technology to an enterprise. Only by possessing irreplaceable zero valent iron products/technology can an enterprise achieve long-term development.
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