Exhibit 99.1

FOR IMMEDIATE RELEASE

FAIRMOUNT SANTROL ANNOUNCES PROPOSED OFFERING OF COMMON STOCK

CHESTERLAND, Ohio – July 20, 2016 – Fairmount Santrol (NYSE: FMSA), a leading provider of high-performance sand and sand-based products, today announced that it has commenced an underwritten public offering of 25,000,000 shares of Fairmount Santrol common stock. The underwriters will be granted a 30-day option to purchase up to an additional 3,750,000 shares of common stock.

Fairmount Santrol intends to use the net proceeds of the offering for general corporate purposes, which may include, but are not limited to, working capital, repayment, redemption or refinancing of debt, leases, capital expenditures, investments in or loans to subsidiaries and joint ventures, and satisfaction of other obligations.

Morgan Stanley & Co. LLC, Wells Fargo Securities, LLC and Barclays Capital Inc. are acting as joint book-running managers for the offering. This offering is being made by means of a prospectus supplement and accompanying base prospectus, copies of which may be obtained by sending a request to: Morgan Stanley & Co. LLC, Attention: Prospectus Department, 180 Varick Street, 2nd floor, New York, NY 10014; Wells Fargo Securities, LLC, Attention: Equity Syndicate Department, 375 Park Avenue, New York, NY 10152, Telephone: 800-326-5897, Email: cmclientsupport@wellsfargo.com; or Barclays Capital Inc., c/o Broadridge Financial Solutions, 1155 Long Island Avenue, Edgewood, NY 11717, Telephone: 888-603-5847, Email: barclaysprospectus@broadridge.com.

This offering is being made pursuant to an effective shelf registration statement filed with the Securities and Exchange Commission. This press release shall not constitute an offer to sell or the solicitation of an offer to buy the Company’s common stock or any other securities, and there shall not be any offer, solicitation or sale of securities mentioned in this press release in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction.

About Fairmount Santrol

Fairmount Santrol is a leading provider of high-performance sand and sand-based products used by oil and gas exploration and production companies to enhance the productivity of their wells. The Company also provides high-quality products, strong technical leadership and applications knowledge to end users in the foundry, building products, water filtration, glass, and sports and recreation markets. Its global logistics capabilities include a wide-ranging network of distribution terminals and rail cars that allow the Company to effectively serve customers wherever they operate. As one of the nation’s longest continuously operating mining organizations, Fairmount Santrol has developed a strong commitment to all three pillars of sustainable development, People, Planet and Prosperity. Correspondingly, the Company’s motto and action orientation is: “Do Good. Do Well.” For more information, visit FairmountSantrol.com.

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Forward-Looking Statements

Certain statements contained in this press release constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements represent the Company’s expectations or beliefs concerning future events, and it is possible that the results described in this press release will not be achieved. These forward-looking statements are subject to risks, uncertainties and other factors, many of which are outside of the Company’s control that could cause actual results to differ materially from the results discussed in the forward-looking statements. These factors include: changes in prevailing economic conditions, including continuing pressure on and fluctuations in demand for, and pricing of, our products; possible adverse effects of being leveraged, including interest rate, event of default or refinancing risks, as well as potentially limiting the Company’s ability to invest in certain market opportunities; our ability to successfully develop and market new products, including Propel SSP™; our rights and ability to mine our property and our renewal or receipt of the required permits and approvals from government authorities and other third parties; our ability to implement capacity expansion plans within our time and budgetary parameters; increasing costs or a lack of dependability or availability of transportation services or infrastructure and geographic shifts in demand; changing legislative and regulatory initiatives relating to our business, including environmental, mining, health and safety, licensing, reclamation and other regulation relating to hydraulic fracturing (and changes in their enforcement and interpretation); silica-related health issues and corresponding litigation; seasonal and severe weather conditions; and other operating risks that are beyond our control.

Any forward-looking statement speaks only as of the date on which it is made, and, except as required by law, the Company does not undertake any obligation to update or revise any forward-looking statement, whether as a result of new information, future events or otherwise. New factors emerge from time to time, and it is not possible for the Company to predict all such factors. When considering these forward-looking statements, you should keep in mind the risk factors and other cautionary statements in Fairmount Santrol Holdings Inc.’s filings with the Securities and Exchange Commission (“SEC”). The risk factors and other factors noted in our filings with the SEC could cause our actual results to differ materially from those contained in any forward-looking statement.

Investor contact:

Sharon Van Zeeland

440-279-0204

Sharon.VanZeeland@fairmountsantrol.com

Media contact:

Kristin Lewis

440-279-0245

Kristin.Lewis@fairmountsantrol.com

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