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Orion Engineered Carbons S.A. Set to Join Russell 3000® Index

OEC | June 10, 2019

HOUSTON

Orion Engineered Carbons S.A. (NYSE: OEC) (the “Company“ or “Orion”), a worldwide supplier of specialty and high-performance Carbon Black, today announced the Company is set to join the broad-market Russell 3000® Index at the conclusion of the 2019 Russell indexes annual reconstitution, effective after the U.S. market opens on July 1, 2019, according to a preliminary list of additions posted June 7, 2019.

Annual Russell indexes reconstitution captures the 4,000 largest U.S. stocks as of May 10, 2019 ranking them by total market capitalization. Membership in the U.S. all-cap Russell 3000^® Index, which remains in place for one year, means for Orion also automatic inclusion in the small-cap Russell 2000^® Index as well as the appropriate growth and value style indexes. FTSE Russell determines membership for its Russell indexes primarily by objective, market-capitalization rankings and style attributes.

“We are very pleased that Orion will become a member of the Russell indexes when the U.S. market opens in July,” said Corning Painter, CEO of the Company. “I would like to thank our financial team for all the work behind this milestone including converting to a U.S. Dollar based reporting currency from one based on Euros as well as adopting US GAAP. We remain focused on creating value for our shareholders.”

Russell indexes are widely used by investment managers and institutional investors for index funds and as benchmarks for active investment strategies. Approximately $9 trillion in assets are benchmarked against Russell’s U.S. indexes. Russell indexes are part of FTSE Russell, a leading global index provider.

For more information on the Russell 3000^® Index and the Russell indexes reconstitution, go to the “Russell Reconstitution” section on the FTSE Russell website.

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.

About FTSE Russell:

FTSE Russell is a global index leader that provides innovative benchmarking, analytics and data solutions for investors worldwide. FTSE Russell calculates thousands of indexes that measure and benchmark markets and asset classes in more than 70 countries, covering 98% of the investable market globally.

FTSE Russell index expertise and products are used extensively by institutional and retail investors globally. Approximately $16 trillion is currently benchmarked to FTSE Russell indexes. For over 30 years, leading asset owners, asset managers, ETF providers and investment banks have chosen FTSE Russell indexes to benchmark their investment performance and create ETFs, structured products and index-based derivatives.

A core set of universal principles guides FTSE Russell index design and management: a transparent rules-based methodology is informed by independent committees of leading market participants. FTSE Russell is focused on applying the highest industry standards in index design and governance and embraces the IOSCO Principles. FTSE Russell is also focused on index innovation and customer partnerships as it seeks to enhance the breadth, depth and reach of its offering.

FTSE Russell is wholly owned by London Stock Exchange Group.

For more information, visit www.ftserussell.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.