Success Story: A Postdoctoral Researcher from Mexico Gains NIW Approval With Our Effective Assistance

Posted by wegreened on January 4, 2026 in NIW, Mechanical Engineering (Aeronautical Engineering, Aerospace Engineering)

Client’s Testimonial:

“Thank you very much! Your service was truly outstanding.”

On December 6^th, 2025, we received another EB-2 NIW (National Interest Waiver) approval for a Postdoctoral Researcher in the Field of Mechanical Engineering (Approval Notice).

General Field: Mechanical Engineering

Position at the Time of Case Filing: Postdoctoral Researcher

Country of Origin: Mexico

State of Residence at the Time of Filing: Colorado

Approval Notice Date: December 6^th, 2025

Processing Time: 6 months, 29 days

Case Summary:

“Ultimately, [The Client]’s research positions the United States as a leader in sustainable energy solutions, and it is paramount that his talent be retained in the nation.”

This statement, taken from one of the two expert recommendation letters submitted as part of the I-140 NIW (National Interest Waiver) petition, reflects the transformative impact of our client's work. Drawing on our extensive experience and a proven track record of over 32,000 successful cases, our expert team meticulously crafted a compelling petition for this postdoctoral researcher from Mexico who holds a Ph.D. in Engineering.

As an expert in mechanical engineering, the client proposes to continue research on designing sustainable technologies that target climate change challenges, including inefficiencies in thermodynamic systems, water scarcity, and energy access in remote areas. This endeavor aims to enhance environmental resilience and drive long-term sustainability in energy and resource management.

We demonstrated that the client's research is of substantial merit and national importance to the United States. The work addresses critical priorities, including global water security and climate change-related disasters. The client has pioneered research in small-scale solar desalination systems, enhanced pool boiling heat transfer, and microstructural enhancement of aluminum-lithium alloys, as well as ocean thermal energy conversion through thermomagnetic generation.

To strengthen the case, we highlighted the client's credentials: 4 peer-reviewed journal articles (1 first-authored), 1 first-authored conference publication, and 1 provisional patent application. The client's work has garnered 21 citations. Additionally, the research has been supported by major funding from the U.S. Bureau of Reclamation.

We are pleased to report that the client's NIW petition was approved in just under 7 months without any Request for Evidence (RFE). It has been an honor to support this researcher, and we extend our sincere best wishes for continued success in advancing sustainable technologies.

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North America Immigration Law Group (Chen Immigration Law Associates) is a U.S. immigration law firm dedicated to representing corporations, research institutions, and individuals from all 50 U.S. states regarding I-140 immigration petitions. We specialize in employment-based immigration petition and have a proven record of high success rate for the categories of: EB2-NIW (National Interest Waiver), EB1-A (Alien of Extraordinary Ability), EB1-B (Outstanding Researcher/Professor) and O-1 (Alien of Extraordinary Ability).

Our Sixty-four Thousand I-140 Approvals Provide Unprecedented Insight into the USCIS Adjudication Trend

With nearly 64,000 EB-1A, EB-1B, EB-2 NIW and O-1 cases approved, we have first hand information on the manner in which the USCIS adjudicate I-140 cases. As the USCIS has constantly changed its adjudication standards for the EB-1A, EB-1B and EB-2 NIW categories, our firm's huge database of successful cases gives you unprecedented insight to USCIS adjudication trends. We carefully analyze the data for all of our cases and apply the results of our analyses toward giving our clients up-to-date advice and adapting our strategies such that we remain on par with the ever-shifting landscape of immigration law in the U.S. With us, you will always have access to important updates, strategies, and information so that you can make the most informed decisions about your case.

We Have Helped Tens of Thousands of Clients with Credentials and Backgrounds Similar to Yours

With our exceedingly large number of successful petitions, no matter what credentials you have, no matter your background and field of expertise, no matter your visa status or nationality, chances are we have helped hundreds or even thousands of clients just like you. Our clients are usually impressed with how well we understand their research and work. Our insight and understanding stems from the fact that we have handled many cases with elements similar to yours already, and this helps us devise the best strategies for each individual petition.

Vast Majority of Clients Came to Us Because of Referrals

For years, our firm has attracted new clients based solely on word of mouth, recommendations, and the positive collaboration experiences shared with them by their friends and family. We take pride in our reputation and work hard to ensure that we provide a green card application experience that our clients are happy to share with their friends and colleagues. That is how our cumulative total of approved cases grew from 600 in 2013 to nearly 64,000 in 2025.

Track Record of Success EB-1 and NIW Approvals

(2012.01 - 2025.12)

Category	Approval or Refund^®		Approval or Refiling^TM
	Approval or Refund^®
Category	Approved Sum	Success Rate	Approved Sum	Success Rate
NIW	42,047	99%	5,258	97%
EB1A	9,218	91%	4,534	86%
EB1B	1,488	98%	448	93%
Total	52,753	98%	10,240	92%