Exhibit 99.1

Orion Engineered Carbons Posted Investor Presentation Slides for UBS Conference

HOUSTON - Orion Engineered Carbons S.A. (NYSE: OEC) (the “Company” or “Orion”), a worldwide supplier of specialty and high-performance Carbon Black, posted on its website today an updated investor slide presentation on the occasion of attending the UBS conference. The presentation may be found on the Company’s website at https://investor.orioncarbons.com under “Events & Presentations” portion of the website. The Company intends to use this presentation in meetings with analysts, potential investors, and other interested parties.

About Orion Engineered Carbons S.A.

Orion is a worldwide supplier of Carbon Black. Orion group produces a broad range of Carbon Blacks that include high-performance Specialty Gas Blacks, Acetylene Blacks, Furnace Blacks, Lamp Blacks, Thermal Blacks and other Carbon Blacks that tint, colorize and enhance the performance of polymers, plastics, paints and coatings, inks and toners, textile fibers, adhesives and sealants, tires, and mechanical rubber goods such as automotive belts and hoses. Orion runs 14 global production sites. The group has approximately 1,450 employees worldwide. For more information please visit the Orion website www.orioncarbons.com

Forward-Looking Statements

This document contains certain forward-looking statements within the meaning of the U.S. Private Securities Litigation Reform Act of 1995. Forward-looking statements are statements of future expectations that are based on current expectations and assumptions and involve known and unknown risks and uncertainties that could cause actual results, performance or events to differ materially from those expressed or implied in these statements. You should not place undue reliance on forward-looking statements. Each forward-looking statement speaks only as of the date of the particular statement. New risk factors and uncertainties emerge from time to time and it is not possible to predict all risk factors and uncertainties, nor can we assess the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. We undertake no obligation to publicly update or revise any forward-looking statement as a result of new information, future events or other information, other than as required by applicable law.