Company: ZEUS
Filing Date: 2025-10-28
Form Type: 425
Source: 0001437749-25-032010
Chunk: 0

Company: OLYMPIC STEEL INC
Filing Date: 2025-10-28
Form: 425
Chunk 0
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Filed by Olympic Steel, Inc.

Pursuant to Rule 425 Under the Securities Act of 1933

and deemed filed pursuant to Rule 14a-12

under the Securities Exchange Act of 1934

Subject Company: Olympic Steel, Inc.

Commission File No.: 0-23320

| EMAIL    
 SUBJECT: 
 SENT:    | Olympic Steel to Join the Ryerson Family of Companies 
 Wednesday, October 28, 2025                           |
|:---------|:------------------------------------------------------|
| TO:      | “All Olympic Users” email distribution                |
| FROM:    | CompanyCommunications@olysteel.com                    |

Olympic Steel to Join the Ryerson Family of Companies

This afternoon, Olympic Steel announced an agreement to merge with Ryerson Holding Company (Ryerson), a more than 180-year-old leader in the steel service center industry.

Joining the Ryerson Family of Companies will provide Olympic Steel access to more opportunities for growth – as a company and for our employees, more capabilities and an expanded footprint – to service our customers, and the wealth of resources available through the combined Olympic Steel and Ryerson team.

Hear more directly from Rick Marabito, Olympic Steel CEO, and our Executive Chairman, Michael Siegal:

You can find additional details about the merger in the joint press release available here: https://www.olysteel.com/news

What This Means to YOU

This is a significant moment in Olympic Steel’s history. You probably have a lot of questions. First, it is important to note that, upon closing, we anticipate no significant changes for employees.Your employer will continue to be Olympic Steel or your current brand, and Olympic Steel policies will remain in place. There are no plans to change your pay, benefits, job title, responsibilities and supervisor.

You can access additional Frequently Asked Questions (FAQ) here: [link to FAQs]

IMPORTANT

Until we close, Olympic Steel and Ryerson will remain separate companies, meaning we must continue to act independently and not collaborate with Ryerson employees on anything related to the business, including jointly interacting with customers or suppliers.

REMINDER: Please direct any incoming media calls and other requests for comment to our Executive Team via Jackie Ritter (440.658.2613). They are the individuals authorized to speak on Olympic Steel’s behalf.

3Q2025 Earnings & Webcast

Olympic Steel’s 3Q 2025 earnings will also be published this afternoon. You can find that information here once the news release