 HOUSTON, March 23, 2021 PRNewswire -- Summit Midstream Partners, LP NYSE: SMLP the Partnership announced today that it has amended its offer to exchange the Exchange Offer its 9.50 Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units Liquidation Preference 1,000 the Series A Preferred Units tendered in the Exchange Offer for newly issued common units representing limited partner interests in the Partnership the Common Units. For each Series A Preferred Unit that is accepted in the Exchange Offer, the holder will receive 30 Common Units, which is an increase of approximately 11 more than the previous offer of 27 Common Units for each Series A Preferred Unit properly tendered and not validly withdrawn. 