Andrew W. Smetana Uses in NOTICES Clause

NOTICES from Registration Rights Agreement

This Registration Rights Agreement (this "Agreement"), is dated as of July 6, 2017, by and among ECO-STIM ENERGY SOLUTIONS, INC., a Nevada corporation (the "Issuer"), FT SOF VII HOLDINGS, LLC (together with its permitted successors and assigns, the "Note Purchaser"), the other parties named on the signature pages hereto and any parties identified on the signature page of any joinder agreements executed and delivered pursuant to Section 18 hereof (together with the Note Purchaser, the "Holders").

NOTICES. Unless otherwise specifically provided herein, any notice or other communication herein required or permitted to be given shall be in writing and may be personally served, sent by facsimile or sent by recognized national overnight courier service or registered or certified mail, postage prepaid, and shall be deemed to have been given when delivered in person or otherwise upon receipt. For the purposes hereof, the addresses of the parties (until notice of a change thereof is delivered as provided in this Section 13) shall be as follows: The Issuer: Eco-Stim Energy Solutions, Inc. Address: 2930 W. Sam Houston Pkwy N. Suite 275 Houston, Texas 77043 Attention: J. Christopher Boswell Telephone No.: 281-531-7200 Facsimile No.: 281-531-5297 With a copy to (which shall Vinson &Elkins L.L.P. not constitute notice): 2801 Via Fortuna, Suite 100 Austin, Texas 78746-7568 Attn: Andrew W. Smetana The Note Purchaser: FT SOF VII HOLDINGS, LLC Address: c/o Fir Tree Inc. 55 West 46th Street New York, New York 10036 Email: With Legal Notices only to: Email: Attention: General Counsel If to the Note Purchaser, with a copy to: Lowenstein Sandler LLP Address: 1251 Avenue of the Americas New York, New York 10020 Attention: Steven E. Siesser Telephone No.: 212-204-8688 Email: