Success Story: Low Citation Count Did Not Prevent NIW Approval for a Chemical Engineering Researcher Advancing Critical Materials Separation
Client’s Testimonial:
"It was a great and smooth experience working with Chen’s attorney team. The attorneys drafted the petition materials thoroughly and successfully demonstrated the national importance of my case. My EB2-NIW petition was approved through premium processing without any RFE within two months. Highly recommended!”
On May 14th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Graduate Research Assistant in the Field of Chemical Engineering (Approval Notice).
General Field: Chemical Engineering
Position at the Time of Case Filing: Graduate Research Assistant
Approval Notice Date: May 14th, 2026
Processing Time: 1 month, 21 days (Premium Processing Requested)
Case Summary:
A graduate research assistant came to North America Immigration Law Group (Chen Immigration Law Associates) with a specialized chemical engineering profile centered on a nationally urgent question: how to produce critical materials more efficiently, sustainably, and securely within the United States.
The client held an M.S. in chemical engineering and had developed expertise in advanced chemical separation, materials purification, process optimization, and environmentally sustainable processing technologies. His proposed endeavor focused on developing and optimizing advanced extraction and refinement processes to produce critical industrial materials with high yield and purity, particularly to strengthen U.S. manufacturing capacity and supply-chain security.
This case required careful framing because the client’s publication and citation record was still developing. At the time of filing, the record included 2 peer-reviewed journal articles and 3 conference abstracts. His published work had received 6 citations. Rather than treating this modest citation count as a weakness, our team emphasized the technical value, national relevance, and early field use of his research.
The petition highlighted the client’s work on advanced extraction and purification methodologies, including research that achieved high-efficiency yields while significantly reducing operational, chemical, and equipment costs. These results directly supported cleaner, more scalable approaches for recovering critical industrial materials from both raw and recycled sources—resources that are essential to national defense, clean energy, electronics, and advanced manufacturing.
The case was further strengthened by 4 testimonial letters from experts who explained the practical importance of the client’s work. These letters demonstrated that his research addresses a critical U.S. infrastructure vulnerability by advancing domestic materials processing and mitigating reliance on external supply networks. The petition also emphasized that his work had received federal defense research funding, reinforcing its relevance to national security and critical materials resilience.
Although the client had a low citation count, our team demonstrated that his work had already begun informing other researchers in chemical engineering, green chemistry, and rare earth separation. The petition documented examples of later studies relying on his methods to improve chemical separation systems and sustainable chemical synthesis strategies.
This approval reflects our firm’s careful presentation of a case that connected specialized chemical engineering research to broader U.S. interests in critical materials security, clean-energy manufacturing, national defense, and supply-chain resilience.

