May 2 Proposed Efficiency Upgrade at U.S. Steel Anticipates 15+% Return on Investment, Fails to Address Coke Oven Batteries JULY 19, 2019 | POSTED BY CAC USER On May 2, 2019, U.S. Steel proposed an efficiency upgrade involving two projects: (1) a consolidation of certain aspects of operations at the Edgar Thomson Plant and (2) the construction of a co-generation plant at the Clairton facility. It does not intend to modify the coke oven batteries at the Clairton facility. At an estimated cost of $1 billion, the project anticipates a return on investment of 15+%. 1. U.S. Steel: Press Release, May 2, 2019 SUMMARY: The company issues a press release announcing the investment. 2. U.S. Steel: State-of-the-Art Endless Casting and Rolling Investment at Mon Valley, May 2, 2019 (PowerPoint Presentation) SUMMARY: The company issues statements to investors announcing the investment and anticipating a 15+% return on investment. See page 12 ("A Compelling Investment Supported by Flexible Financing"). 3. U.S. Steel: Facility Rendering and Fact Sheet (Edgar Thomson Plant) SUMMARY: The company presents an illustration of the Edgar Thomson plant and a summary of the proposed project. 4. U.S. Steel: Aerial View (Edgar Thomson Plant) SUMMARY: The company presents an aerial view of the Edgar Thomson plant and a summary of the proposed project. 5. U.S. Steel: Facility Rendering and Fact Sheet (Clairton Plant) SUMMARY: The company presents an illustration of the Clairton plant and a summary of the proposed project. 6. U.S. Steel: Aerial View (Clairton Plant) SUMMARY: The company presents an aerial view of the Clairton plant and a summary of the proposed project. 7. U.S. Steel: Application for Installation Permit (Edgar Thomson Plant), May 2, 2019 SUMMARY: The company submits an application for an installation permit for the Edgar Thomson project to the Allegheny County Health Department. 8. U.S. Steel: Application for Installation Permit (Clairton Plant), June 20, 2019 SUMMARY: The company submits an application for an installation permit for the Clairton project to the Allegheny County Health Department.