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2013 Detailed First Quarter Results

Superior's 2013 First Quarter Financial Discussion and Analysis is attached and is also available on Superior's website at www.superiorplus.com under the Investor Relations section.

2013 First Quarter Results Conference Call

Superior will be conducting a conference call and webcast for investors, analysts, brokers and media representatives to discuss the 2013 First Quarter Results at 8:30 a.m. MDT on Thursday, May 2, 2013. To participate in the call, dial:1-877-240-9772. An archived recording of the call will be available for replay until midnight, June 30, 2013. To access the recording, dial: 1-800-408-3053 and enter pass code 5664915 followed by the # key. Internet users can listen to the call live, or as an archived call, on Superior's website at www.superiorplus.com.

Forward Looking Information

This document, the documents incorporated herein by reference and other reports and filings made with the securities regulatory authorities include forward-looking statements. All forward-looking statements are based on our beliefs as well as assumptions based on information available at the time the assumption was made and on management's experience and perception of historical trends, current conditions and expected future developments, as well as other factors deemed appropriate in the circumstances. Forward-looking information may include statements regarding the objectives, business strategies to achieve those objectives, expected financial results (including those in the area of risk management), economic or market conditions, and the outlook of or involving Superior, Superior LP and its businesses. No assurance can be given that these assumptions and expectations will prove to be correct. Those assumptions and expectations are based on information currently available to Superior, including information obtained from third party industry analysts and other third party sources, and the historic performance of Superior's businesses. Forward-looking statements are not facts, but only predications and can generally be identified by the use of statements that include phrases such as "anticipate", "believe", "continue", "could", "estimate", "foresee", "expect", "plan", "intend", "forecast", "future", "guidance", "may", "predict", "project", "should", "strategy", "target", "will" or similar expressions suggesting future outcomes.

In particular, this document contains forward-looking statements pertaining to the following: future financial position, consolidated and business segment outlooks, expected EBITDA from operations, expected adjusted operating cash flow (AOCF) and adjusted operating cash flow per share, expected leverage ratios and debt repayment, debt management summary, expectations in terms of the cost of operations, capital spend and maintenance and the variability of these costs, business strategy and objectives, development plans and programs, business expansion and improvement projects, expected timing of commercial production and the costs associated therewith, market conditions in Canada and the U.S., expected tax consequences of the Conversion, the expected challenge by the CRA of the tax consequences of the Conversion (and the expected timing and impact of such process including any payment of taxes and the quantum of such payments), future income taxes, the impact of proposed changes to Canadian tax legislation or U.S. tax legislation, future economic conditions, future exchange rates and exposure to such rates, dividend strategy, anticipated DRIP proceeds, payout ratio, expected weather, expectations in respect to the global economic environment, our trading strategy and the risk involved in these strategies, the impact of certain hedges on future reported earnings and cash flows, commodity prices and costs, the impact of contracts for commodities, demand for chemicals including sodium chlorate and chloralkali, effect of operational and technological improvements, business enterprise system upgrade plans, future account receivable levels, expected governmental regulatory regimes and legislation and their expected impact on regulatory and legislative compliance costs, expectations for the outcome of existing or potential legal and contractual claims, our ability to obtain financing on acceptable terms, expected life of facilities and statements regarding net working capital and capital expenditure requirements of Superior or Superior Plus LP, 1the assumptions set forth under the "Financial Outlook" section of our MD&A and are subject to the risks and uncertainties set forth below.