Mark Millett
Analyst · UBS.
Thanks, Barry. Thanks, Theresa. Well, consistently strong through-cycle operating and financial performance continues to support our cash generation and growth investment strategies. As mentioned, the 4 value-add flat-rolled steel coating lines are now online and in various modes of startup. And certainly, the line in Sinton was an absolute unqualified success. The team has done a phenomenal job there. And Sinton should see a step function improvement in operations and profitability as those 2 new lines ramp up after the April maintenance, which occurred actually 2 weeks ago, and that's -- they're up and running again.
The aluminum strategy, our growth is especially compelling. Responses from existing and new customers across all markets remains incredible and only strengthening as we move forward. We are currently in discussions with numerous customers who wish to locate on site with us and this co-location strategy provides a sustainably competitive model for all of us, conserving time, money and reducing emissions across the supply chain. And this model has already proven itself tremendously successful in Sinton.
And to just sort of review the project itself, 650,000 metric tons of aluminum flat roll capability in Columbus, Mississippi, the state-of-the-art plant, it has served the sustainable beverage and packaging sector, automotive and industrial markets as well. The roughly 300,000 metric tons a year of can stock, about 200,000 tons of auto and 150,000 tons of industrial and construction.
Actually at the site in Columbus, we'll have a metal cast slab capacity of around 600,000 metric tons and that will be supported by 2 satellite facilities, one out west around Gila Bend and one in Central Mexico, which are located in scrap-rich regions. We can capture the scrap, turn it into the cast slab and transport it very, very effectively and cost efficiently to the mill itself. Expanded the project scope to include additional scrap processing and treatment to maximize aluminum recycled content. The metals recycling team has also developed a commercially viable sorting solution at volume for 5000 and 6000 series aluminum scrap, which represents an incredible competitive advantage for us.
Our startup plans have not changed. The rolling mill should be operating mid-2025, the Mexico Slab Center at the end of '24 and then Arizona mid-'25. The total project cost, including the recycled slab centers remains at $2.7 billion. And with virtually all equipment and construction contracts complete, we feel confident in the expected amount of investment.
We also are confident that it will add around about $650 million to $700 million of through-cycle annual EBITDA plus an initial $40 million to $50 million from the Omni platform as well. The investment premise, if you think about it, the market environment is similar to the domestic steel industry when we started SDI 30 years ago.
They have older assets, they've had difficulty earning their cost of capital. So there's been a little reinvestment, heavy legacy costs, inefficient and operations are typically high cost. And also a significant aluminum flat-rolled supply deficit exists in North America, which is expected to grow. And this will be the first time we've ever entered a market where there's a supply/demand gap, pretty positive for us, for sure.
We have business alignment and we can leverage our core competencies of construction and operational know-how. We can lever Omni's recycling footprint. As many of you know, we're the largest aluminum scrap recycler in North America. And again, we are developing some pretty exciting new separation technologies. So it's going to be cost effective. It's a very, very high-return growth for us.
Moving on, learn passion, I think, by our future growth plans, as they will continue to drive the high-return growth momentum we have consistently demonstrated over the years. We have the highest, most recent 5-year average after-tax return on invested capital within the S&P 500 materials companies. And in the most recent 3 years, we have had an average of after-tax return on invested capital of 32%, which I think is a stunning number and an affirmation of the ability of all our team.
Our disciplined and intentional growth strategy, focused on differentiated value-added supply chain solutions, has provided sustainable and growing cash generation. And we'll continue to do so in the future. So I'm incredibly optimistic moving forward.
I believe the market dynamics are in place to support increased demand across our operating platforms in '24. North America will benefit from continued onshoring of manufacturing businesses. And the U.S. will benefit from the allocation of public monies from the infrastructure program, the Inflation Reduction Act and other public programs. Steel Dynamics is levered to benefit from those programs through increased steel joist and deck demand, flat and long product steel demand and the associated higher demand for recycled scrap and aluminum.
As I said earlier, our teams are our foundation. I thank each and every one of them for their passion and their dedication. We are committed to them, and I remind those listening today, the safety for yourselves, your families and each other is our highest priority. Our culture and business model continue to positively differentiate our performance, leading to best-in-class operating and financial metrics.
We're no longer a simple steel company. We're an industrial metals business providing enhanced supply chain solutions to numerous industries that are essential to global economies. This differentiation and diversification mitigates cash generation volatility in all market cycles, as we've just seen in this past quarter. We are competitively positioned and continue to focus on providing superior value for our companies, for our customers, team members and shareholders alike, and we look forward to creating new opportunities for all of us today in the many years ahead.
With that said, Matthew, could you open the line up for questions, please?