USWS US Well Services Inc

Completion of Acquisition or Disposition of Assets.

At the effective time of the Merger (the “Effective Time”), each share of Class A Common Stock of USWS Inc., par value $0.0001 per share (the “USWS Common Stock”), was converted automatically into the right to receive 0.3366 (the “Exchange Ratio”) shares of Class A common stock of ProFrac, par value $0.01 per share (the “PFHC Common Stock”) (the “Merger Consideration”), as adjusted from the agreed upon Merger Agreement ratio of 0.0561 to account for the 1-for-6 reverse stock split implemented by USWS Inc. on August 4, 2022.

Immediately prior to the Effective Time:

each holder of Series A Redeemable Convertible Preferred Stock of USWS Inc., par value $0.0001 per share, (the “USWS Series A Preferred Stock”) had the option of converting such stock into shares of USWS Common Stock at the Merger Conversion Ratio (as defined in the Merger Agreement), and any shares of USWS Series A Preferred Stock not so converted at the Merger Conversion Ratio were automatically converted into shares of USWS Common Stock at the then-effective conversion rate as calculated pursuant to USWS Inc.’s Certificate of Designations (as defined in the Merger Agreement); and

each Equity Linked Convertible Note (as defined in the Merger Agreement) issued and outstanding at such time was automatically converted into a number of shares of USWS Common Stock equal to the quotient obtained by dividing (i) the amount of outstanding aggregate principal amount, plus accrued and unpaid interest, owing under such Equity Linked Convertible Note through July 9, 2022, by (ii) $7.32.

At the Effective Time, each February Term C Loan Warrant and March Term C Loan Warrant (as such terms are defined in the Merger Agreement) that was issued and outstanding immediately prior to the Effective Time (which was held by ProFrac pursuant to the Warrant Sale, as such term is defined and described below) was automatically canceled and ceased to exist and no consideration was delivered in exchange therefor.

The obligations of USWS Inc. under the Rollover Warrants were assumed by ProFrac and the Rollover Warrants now represent the right to receive upon valid exercise thereof shares of PFHC Common Stock equal to the product of (A) the number of shares of USWS Common Stock subject to such Rollover Warrant immediately prior to the Effective Time and (B) the Exchange Ratio.

At the Effective Time, each share of USWS Common Stock that was subject to vesting, repurchase, or other lapse of restrictions that was outstanding and unvested under USWS Inc.’s Amended and Restated 2018 Stock Incentive Plan (the “Company LTIP”) immediately prior to the Effective Time was, by virtue of the Merger and without any action on the part of the holder thereof, canceled in exchange for the right to receive the Merger Consideration and, in lieu of any fractional shares, cash.

Immediately prior to the Effective Time, each then-outstanding deferred stock unit or restricted stock unit, in each case representing a right to receive one share of USWS Common Stock granted under the Company LTIP (each, a “DSU”), was, by virtue of the Merger and without any action on the part of the holder thereof, canceled and converted into the right to receive the Merger Consideration and, in lieu of any fractional shares, cash.

Immediately prior to the Effective Time, by virtue of the Merger and without any action on the part of the holder thereof, (i) each then-outstanding Pool A Performance Award (as defined in the Merger Agreement) was canceled and converted into the right to receive (A) for recipients of Pool A Performance Awards who consented to the terms of that certain Amendment to Performance Awards included as an exhibit to the Merger Agreement (the “Award Amendment”), the Merger Consideration in an amount equal to the accumulated award value as of July 19, 2022 divided by $7.32, and (B) with respect to each Pool A Performance Award not amended by an Award Amendment, the Merger Consideration in an amount equal

to the accumulated award value as of the Effective Time divided by $7.32; and (ii) each then-outstanding Pool B Performance Award (as defined in the Merger Agreement) was canceled and converted into the right to receive (A) with respect to each Pool B Performance Award amended by an Award Amendment, the Merger Consideration in an amount equal to the accumulated award value as of July 19, 2022 divided by $6.468, and (B) with respect to each Pool B Performance Award not amended by an Award Amendment, the Merger Consideration in an amount equal to the accumulated award value as of the Effective Time divided by $6.468.