X0306 4 2019-08-20 0 0001730346 Charah Solutions, Inc. CHRA 0001236545 FLEXON ROBERT C 12601 PLANTSIDE DR. LOUISVILLE KY 40299 1 0 0 0 Common Stock 2019-08-20 4 P 0 7500 3.2284 A 42386 D The price reported in Column 4 is a weighted average price. These shares were acquired in multiple transactions at prices ranging from $3.09 to $3.30, inclusive. The reporting person undertakes to provide to Charah Solutions, Inc., any security holder of Charah Solutions, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares acquired at each separate price within the range set forth above. /s/ Robert Flexon, by Scott Sewell as attorney-in-fact 2019-08-22