Exhibit 99.1

News Release
Hi-Crush Partners LP Announces Adjournment of Special Unitholder Meeting to May 22, 2019
HOUSTON, April 10,2019—Hi-Crush Partners LP (NYSE: HCLP),“Hi-Crush” or the “Partnership”, today announced that its general partner,Hi-Crush GP LLC, plans to adjourn the special unitholder meeting scheduled for April 11, 2019 once it convenes. The special meeting will be scheduled to reconvene at 9:00 a.m. local time on May 22, 2019, at 1330 Post Oak Blvd., Houston, Texas 77056.
The adjournment will allow unitholders additional time to cast their votes or submit their proxy on the proposals to approve the Plan of Conversion pursuant to which the Partnership would effect its proposed conversion from a Delaware limited partnership to a Delaware corporation (the “Conversion”), and approve theHi-Crush Inc. Long Term Incentive Plan to be in effect following the consummation of the Conversion (the “LTIP Proposal”).
“We appreciate all of the unitholders who have cast their votesto-date and are pleased with the results so far, which is overwhelmingly in favor of the Conversion and the LTIP Proposal,” said Robert E. Rasmus, Chairman and Chief Executive Officer ofHi-Crush. “The adjournment of the special unitholder meeting allows more unitholders to exercise their vote, and remains in line with our plan to effect the Conversion by the end of the second quarter of 2019.”
Partnership unitholders who have not voted but wish to do so, or who have questions about the Conversion or the LTIP Proposal, should contact Georgeson, which is assisting the Partnership with the solicitation of proxies, by calling toll-free at1-877-797-1153.
AboutHi-Crush
Hi-Crush is a fully integrated, strategic provider of proppant and logistics solutions to the North American petroleum industry. We providemine-to-wellsite logistics services that optimize proppant supply to customers in all major oil and gas basins in the United States, and own and operate multiple frac sand mining facilities andin-basin terminals. Our PropStream® service, offering both container- and silo-based wellsite delivery and storage systems, provides the highest level of flexibility, safety and efficiency in managing the full scope and value of the proppant supply chain. Visit HiCrush.com.
Forward-Looking Statements
Some of the information in this news release may contain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). Forward-looking statements give our current expectations, and contain projections of results of operations or of financial condition, or forecasts of future events. Words such as “may,” “should,” “assume,” “forecast,” “position,” “predict,” “strategy,” “expect,” “intend,” “hope,” “plan,” “estimate,” “anticipate,” “could,” “believe,” “project,” “budget,” “potential,” “likely,” or “continue,” and similar expressions are used to identify forward-looking statements. They can be affected by assumptions used or by known or unknown risks or uncertainties. Consequently, no forward-looking statements can be guaranteed. When considering these forward-looking statements, you should