Success Story: NIW Approved! Our Expert Team Framed Tribology and Energy Storage Materials Research as a National-Scale Engineering Need
Client’s Testimonial:
"I am thrilled to receive my EB2 NIW approval without RFE. The team provided expert guidance and was highly responsive throughout the entire process, making everything smooth and manageable. I truly appreciate their professionalism and highly recommend them.”
On February 28th, 2026, we received another EB-2 NIW (National Interest Waiver) approval for a Postdoctoral Research Associate in the Field of Chemical Engineering (Approval Notice).
General Field: Chemical Engineering
Position at the Time of Case Filing: Postdoctoral Research Associate
Country of Origin: South Korea
State of Residence at the Time of Filing: Tennessee
Approval Notice Date: February 28th, 2026
Processing Time: 22 months, 5 days (Premium Processing Upgrade Requested)
Case Summary:
North America Immigration Law Group (Chen Immigration Law Associates) is pleased to share an I-140 EB-2 National Interest Waiver (NIW) approval for the client, a chemical engineering researcher whose work strengthens two foundational technology areas: advanced lubricant materials and robust energy storage devices. The client holds an M.E. in chemical engineering and, at the time of filing, was conducting research in the United States in a university-based role aligned with the proposed endeavor.
The Proposed Endeavor
The client’s proposed endeavor is to continue conducting mechanical contact and reaction-kinetics experiments and using advanced surface characterization techniques to better understand how materials behave under real operating conditions. The petition presented this work as practical engineering research that can reduce friction and wear losses in machinery while also supporting more durable, higher-performing energy storage components. The client’s future plans to continue this research in a U.S.-based national laboratory-style environment further reinforced a credible pathway for sustained contributions.
How We Demonstrated the Client’s Significance
NIW cases do not turn on metrics alone. The key is showing what those metrics mean in context: that the work is being selected through rigorous peer review, relied upon by independent researchers, and supported by credible third parties. The case highlighted objective indicators and explained how an adjudicator should interpret them:
- Publication record: 13 peer-reviewed journal articles (5 first-authored)
- Citation reliance: 168 citations to the published body of work
- Peer-review trust: at least 4 completed reviews, reflecting that authoritative venues relied on the client’s technical judgment
- Research support: funding from major sources
Rather than presenting citations as self-evidently sufficient, the petition framed them as evidence of independent reliance, meaning other researchers used the client’s findings as inputs for further investigation. Likewise, peer-review service was positioned as a separate trust signal, since review invitations typically go to individuals viewed as technically capable of judging rigor and significance.
Expert Recommendation Letters
To strengthen the record, the petition included four letters of recommendation from distinguished experts, including independent advisory perspectives. These letters were used to connect the client’s experiments and surface-analysis methods to broader value in materials performance, durability, and energy-related applications.
“Moreover, his work reviewing the research of his academic peers establishes his inherent value to the field and the U.S.”
The Result
USCIS approved the NIW petition, reflecting a case presentation that connected the proposed endeavor to national importance and demonstrated that the client is well-positioned through a sustained publication record, independent citation reliance, peer-review trust, and credible funding support.

