 ATLANTA--BUSINESS WIRE--Ciner Resources LP NYSE: CINR we, us, our, or the Partnership today reported its financial and operating results for the first quarter ended March 31, 2021. First Quarter 2021 Financial Highlights: Net sales of 127.8 million increased 11.7 from the prior-year first quarter. Soda ash volume produced decreased 4.7 from the prior-year first quarter and soda ash volume sold increased 8.5 from the prior-year first quarter. Net income of 5.6 million decrease 