Mercer International Inc. Provides Maintenance Shutdown and Second Quarter Update

Mercer International Inc. Provides Maintenance Shutdown and Second Quarter

NEW YORK, June 7, 2013 (GLOBE NEWSWIRE) -- Mercer International Inc.
(Nasdaq:MERC) (TSX:MRI.U) today announced that, during this current quarter of
2013, its Celgar mill took its annual scheduled major maintenance shutdown. As
a result of a combination of a lightning strike at the mill and equipment and
execution issues, the shutdown, which was planned for 11 days, took 15 days
instead. Further, the start-up of the mill was slower than budgeted. The
shutdown and slower start-up resulted in a loss of approximately 30,300 ADMTs
of NBSK pulp production (of which approximately 14,300 ADMTs was unplanned)
and a consequential loss of energy production. Mercer currently estimates that
the Celgar mill's shutdown will have an overall negative impact of
approximately €11 million to its operating income in its second quarter of
2013 results, compared to its first quarter 2013 results.

Mr. Jimmy Lee, President and Chairman, stated: "We believe the issues with
this recent shutdown were isolated and the mill is performing well and
operating at pre-shutdown levels." He concluded: "We believe our current
inventory levels are adequate and anticipate no material customer issues from
this event."

Mercer International Inc. is a global pulp manufacturing company. To obtain
further information on the company, please visit its web site at

The preceding includes forward looking statements which involve known and
unknown risks and uncertainties which may cause our actual results in future
periods to differ materially from forecasted results. Words such as "expects",
"anticipates", "projects", "intends", "designed", "will", "believes",
"estimates", "may", "could" and variations of such words and similar
expressions are intended to identify such forward-looking statements. Among
those factors which could cause actual results to differ materially are the
following: the highly cyclical nature of our business, raw material costs, our
level of indebtedness, competition, foreign exchange and interest rate
fluctuations, our use of derivatives, expenditures for capital projects,
environmental regulation and compliance, disruptions to our production, market
conditions and other risk factors listed from time to time in our SEC reports.

         Jimmy S.H. Lee
         Chairman & President
         (604) 684-1099
         David M. Gandossi
         Executive Vice-President &
         Chief Financial Officer
         (604) 684-1099

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