It seems you are asking about a company called Wilmington Chemical Corporation. However, there isn't a widely known or publicly traded company with this exact name.

It's possible that:

* The company has a different name now. Many companies change names over time.

* It's a smaller, private company. Information about private companies is not always publicly available.

* You may be thinking of a different company. There are many chemical companies based in Wilmington, Delaware, or that use "Wilmington" in their name.

To get more information, you could try:

* Searching for the company name on the internet. Be sure to include "Wilmington, Delaware" in your search to narrow it down.

* Checking with the Delaware Department of State's Division of Corporations. They may have records of registered companies.

* Contacting a business directory service. They may be able to provide more information about companies in the area.

Please provide more information about the company, such as its industry, approximate date of founding, or any other details you know, and I might be able to help you further.