Mercer International (MERC) 8-K Regulation FD Disclosure

Exhibit 99.1

Investor Presentation May 2008

Forward Looking Statements The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. Certain information included in this presentation contains statements that are forward-looking, such as statements relating to results of operations and financial conditions and business development activities, as well as capital spending and financing sources. Such forward-looking information involves important risks and uncertainties that could significantly affect anticipated results in the future and, accordingly, such results may differ materially from those expressed in any forward-looking statements made by or on behalf of Mercer. For more information regarding these risks and uncertainties, review Mercer’s filings with the Securities and Exchange Commission.

Company Overview Mercer is the largest publicly traded NBSK(1) market pulp producer in the world Operates three pulp mills with 1.43 million ADMT(2) of capacity RosenthalStendal (3)Celgar (Germany)(Germany)(BC, Canada) 325,000 ADMT620,000 ADMT480,000 ADMT ___ (1) NBSK = northern bleached softwood kraft. (2) ADMT = air dried metric tonnes. (3) Stendal is a 70% owned facility

Our Strategy Focus on NBSK market pulp Premium grade kraft pulp that generally obtains the highest price Operate modern, world-class NBSK pulp production facilities Target profitability in all market conditions Limit ongoing capital requirements Improve efficiency and reduce production costs Focus on continuous improvement Focus on energy production Grow assets and earnings Organically and through acquisitions

NBSK Market Pulp Capacity By Producer By capacity, Mercer is the largest publicly traded NBSK market pulp producer in the world Sodra Cell Mercer CapacityCanfor Pulp Trust Pope and Talbot Ilim Pulp Total Weyerhaeuser (1) by Tembec Producers New Domtar (1) Stora Enso West Fraser Metsa-Botnia SFK Pulp 0250 500 750 1,000 1,250 1,500 000’s Tonnes of NBSK Market Pulp Capacity (1) Adjusted for the merger of Weyerhaeuser’s fine paper business with Domtar, excluding idled mills in Prince Albert, SK and Lebel-sur-Quevillon, Que.5 Source: Public filings of individual companies

World Class Assets Mercer versus other top 20 NBSK producers as of Q4 2007 (includes integrated capacity) Large, modern facilities – low capital requirements, high runability State-of-the-art environmental compliance Energy – net producers Weighted average PM capacity, 1 000 4Q07 750 mt/aSTRONG 600 PotlatchWeighted Average Weyerhaeuser BotniaTechnical Age 19 Terrace Bay IlimMerceryears 1,000 mt/a450 Södra UPM SCA Canfor Capacity, SFKHeinzel 300 P&T Stora Enso Mill DomtarWest FraserWeighted Average BillerudCapacity 380,000 150 Boise t/a CatalyMondi st WEAK 0 302520151050 Note: Bubble sizes represent market and integrated pulp productions. Technical Age, Years Source: Jaakko Pöyry

Pulp Price History Quarterly Average RISI Price Delivered to N. Europe USDCADEURO 1200 1100 Tonne 1000 Per 900 Price 800 CAD NBSK 700 USD 600 500 EURO 400 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 2000 2001 20022003 20042005 20062007 Source: RISI tables

Softwood Kraft Market Pulp There are three categories of softwood kraft market pulp, as defined by end-use requirements Pulp CategoryEnd Uses PremiumLightweight publication papers, premium tissue Heavier weight publication papers, value Standard tissues, lighter uncoated woodfree papers Coarse Uncoated woodfree papers, packaging products (Includes SBSK) Premium and Standard grades of softwood pulp that offer reinforcement qualities are moving into a structural supply / demand dynamic that favours the producer Source: Jaakko Pöyry8

Demand Changes for Premium Pulp Higher production Lower basis speeds = more NBSK pulp adds strength to a weights = more Premium pulp wide range of paper products TAD tissue Premium pulp usage Growing demand capacity requires more Premium usage Technological evolution of – tissue and printing and pulp in furnishindustry, i.e. faster paper writing papersmachines, increases minimum NBSK requirements in many cases Papers moving toward lighter New coating concepts reduce weights, more coatings and New papermaking strength fillers, and increased recycled New tissue technology requirements in technology = reduces Premium content, making the NBSK base sheet more Southern pulp usagecontent increasingly important pulp usage Increased Premium pulp demand in key segments will more than offset the reduced Premium pulp usage in some furnishes

NBSK End Uses (2003 versus 2006) 20032006 Specialties Printing and SpecialtiesPrinting & Writing Writing Paper19%17%Papers 17% 27% 18% Tissues 21%26% Tissues 15%23% Coated Mechanical (magazines) Uncoated Coated 17% Mechanical Mechanical (Newspaper (Magazines) Inserts)Uncoated Mechanical Source: Jaakko Pöyry (catalogs & inserts) Substitution Discussion: Substitution has been occurring as less demanding end uses have shifted away from NBSK, this trend has been occurring for well over a decade For certain end uses, paper makers have reduced the percentage of NBSK used but when one factors in the growth of the end use segment, NBSK consumption has grown on a net tonnes basis.

NBSK Capacity Reductions Recently announced closures and expected shutdowns will reduce supply Approximately 1.2 million mt of NBSK market pulp capacity already shut down with another 1 million mt expected to close in the next year Represents approximately 15% of total global NBSK market pulp capacity * World NBSK Pulp Closures SizeMarket Pulp CompanyLocationDate(000’s mt) (000’s mt) NBSK Pulp Mill Closures Stora EnsoNorrsundet, Sweden 1Q2 2009300300 Pope & TalbotNanaimo, Mackenzie, Halsey 2 Q2 2008600600 Stora EnsoKemijarvi, FinlandQ2 2008250120 WeyerhaeuserUSAQ1 20086060 West FraserHinton, ABQ4 20067070 TembecSmooth Rock Falls, ONQ3 2006200200 CascadesJonquiere, PQQ3 2006820 BowaterThunder Bay, ONQ2 2006100100 KorsnasGavle, SwedenQ2 20067070 WeyerhaeuserPrince Albert, SKQ2 2006260130 Western Forest Products Squamish, BCQ1 2006275275 DomtarLebel-sur-QuevillonQ4 2005300300 25672225 Total NBSK Capacity Closures2567 Total Market Pulp Closures (approx.)2225 Source: NLK Pulp Monitor, company filings 1Tentative plan to close in the future 2Mills are for sale and it is not expected that P&T will find a buyer for Harmac11 * Total global NBSK market pulp capacity = 14, 475, 000 tonnes (Source: Pulp and Paper Products Council)

NBSK Capacity Expansions Recently announced expansions have not offset capacity reductions World NBSK Pulp Expansions SizeMarket Pulp CompanyLocationDate(000’s mt)(000’s) NBSK Pulp Mill Expansions Mercer — StendalGermanyQ4 20072020 Metsa-RaumaFinlandQ2 20074545 Jilin ChenmingChinaQ2 2007100100 Stora EnsoFinlandQ2 20076565 Mercer — CelgarCanadaQ2 20075050 MunksjoSwedenQ2 20072020 WeyerhaeuserCanadaQ1 20073030 APRILChinaQ4 20064040 SCASwedenQ4 20062020 IlimRussiaQ2 2006100100 Stora EnsoFinlandQ1 2006125125 Mercer — StendalGermanyQ4 20055050 665665 Total NBSK Capacity Expansions665 Total Market Pulp Expansions (approx.)665 Source: NLK Pulp Monitor, company filings

BSK Tightening of Supply and Demand Total Bleached Softwood Kraft demand in 2007 was 22.2 million tonnes, up from 21,9 million the year before. NBSK follows the general demand increases for softwood Historic BSK Demand versus Practical Maximum Capacity Capacity (tonnes)Demand (tonnes)Demand Capacity Spread (%) 25,00025% 20,00020% 15,00015% 10,00010%Demand 000’s of tonnes 5,0005%Supply exceed 00% 07 8 92 3 47 9995 996 9 9 9 000 001 0 0 00 0050 191 1 19 19 19 2 2 20 20 2 22006 20 Year13 Source: Pulp & Paper Products Council

NBSK Tightening of Supply and Demand The gap between supply and demand widened slightly in 2007 We had expected in 2007 the supply / demand spread to narrow to zero with the 1.2 million tonnes in capacity closures, but swing capacity and debottlenecking offset the closures. Based upon species mix in forests we believe capacity that has swung to NBSK can’t be sustained over the long term. Limitations to fiber switching coupled with continued NBSK demand growth and further capacity closures will continue to tighten fundamentals, leading to higher prices over the long term Historic NBSK Demand versus Practical Maximum Capacity Capacity (tonnes)Demand (tonnes)Demand Capacity Spread (%) 16,00035% 14,00030% 12,00025% 10,00020% 8,00015% 6,00010%Demand 000’s of tonnes 4,0005%Supply exceed 2,0000% 0-5% 04 5 6 7 999 00 01 02 03 0 0 0 0 90 0 0 0 20 20 20 20 191995199619971998 1 2 2 2 2 14 Source: Pulp & Paper Products CouncilYear

NBSK Substitution – SBSK / Radiata Is substitution to Southern softwood or Radiata a threat? There are quality and production issues associated with using greater volumes of southern softwood The coarseness of these fibers is such that it is difficult to increase the volume used without having sufficient installed refining capacity for conversion. Even still, converted Southern fiber only provides the base, not the necessary tensile strength There will be less and less Radiata production as competition for land use will favour eucalyptus instead of pine as pine takes too long to grow for its delivered yield In Europe, Mercer’s ability to provide very favourable shipping times relative to Southern producers provides a consistent and flexible supply solution for customers, ensuring strong relationships going forward

Short Term SBSK Swing Demand and Capacity Impacts SBSK Capacity is being sold at distressed prices Arauco’s Valdivia mill has been allowed to increase to full production Lee & Man’s 210,000 tonne Samoa mill has swung its unbleached capacity to bleached and is selling its lower quality fiber with significant discounts IP’s Southern Softwood Bastrop mill converted 450,000 tonnes of integrated capacity to market pulp (selling pulp in roll form) These new supplies of SBSK have been creating pricing competition in the lower quality softwood pulp segments. It is especially prevalent with the heavily discounted pulp being sold in rolls rather than sheets which is th e accepted format for all modern paper pulp machines Softwood swing demand utilizing SBSK capacity The Chinese market as a whole is less quality conscious. Some paper makers in China with less exacting standards have been able to substitute NBSK with SBSK/Radiata producing products for niches that require less quality. Net Impact: There has been a distortion in softwood fiber pricing in China and will only last until these supplies are absorbed into the ever increasing Chinese fiber demand

NBSK Swing Capacity is Causing Disruptions Low fiber availability is forcing swing Russian export duties and two warm winters in a row have significantly impacted Scandinavian hardwood log supplies Finnish pulp producers have swung significant hardwood capacity to softwood and as spot market sellers had been selling NBSK at discounts to move volume Finnish swing production is not sustainable over the long term Recent curtailment announcements by Botnia and Stora Enso indicate practical limits have been reached Stora Enso announced that, as a result of wood shortages, it is taking NBSK cur tailments at Sunila and Norrsundet this summer and that Norrsundet will only run at half capacity until its permanent closure at the end of the year Stora’s Enocell mill is switching its large line back to birch as long as supplies last The Swedish pulp sector had swung heavily to softwood after major storms created blow down a few years ago. These surplus volumes of softwood should now have been used up Net Effect: Scandinavian mills have been producing more softwood than traditionally, distorting softwood fundamentals; Increase in low priced NBSK swing capacity sales in regions like China had been negatively impacting NBSK producers

NBSK Substitution — Hardwood How much substitution from hardwood to softwood can be expected? Substitution between BEK and NBSK, which is mainly in the uncoated printing and writing segment, is a function of the pricing differential between the two — the more expensive one fiber becomes relative to the other, the more of the other fiber will be used, within the operational limits of the paper machine When the price differential exists for a prolonged period of time, we start seeing the practical substitution limits – producers trying to use more hardwood in their furnish fail to get reliab ility out of their machines Unless paper producers willingly slow down their machines significantly, very little change in the level of substitution is expected In North America, 90% of BEK is used in tissue, so the forecasted expansion in tissue of 3% will consume both BEK and NBSK Typical modern tissue requires a minimum of 30% NBSK in the furnish Northern and Southern mixed hardwoods are falling under increasing pressure due to high fiber, production and transportation costs to Europe and Asia

Softwood Substitution in Western Europe European price differential v softwood consumption growth 120 BSKP at a BSKP / BHKP price 8% premiumdifferential 60 growth 4% consumption BSKP / BHKP price differential0 0% (US$/t)(YoY %chg) -60 -4% Softwood pulp BSKP consumption growth* BHKP at a Right scale premium-120 -8% Jan-02Jan-03Jan-04Jan-05Jan-06Jan-07Jan-08 * Consumption data based upon 6-month moving averageSource: Hawkins Wright Research/Utipulp Softwood has been selling at a premium for 24 months and there is no sign of this differential decreasing. Evidence suggests over the ST, ability for easy substitution has been nearly exhausted as further reductions would impede the reliability of paper machines A rapid build up in consumption growth in the last half of 2007 has resulted in a consumption decline in the first half of 2008. This reflects the sector’s year over year average growth

NBSK Fundamentals How will the slow down of global growth affect NBSK demand? A general slow down of the global economy, coupled with changes in paper utilization due to e-commerce and the internet, will certainly translate into less production/consumption of certain paper segments – notably the coated and uncoated wood free sectors In order to mitigate the effects of these declining sectors, Mercer is focusing on the growing tissue segment and other higher end producers who value our quality and premium reinforcement characteristics What effect will the restructuring of the paper industry have on NBSK demand? The closure of 3-6 million tons of Chinese pulp and paper capacity — derived from highly polluting straw mills – will be beneficial for hardwood, recycle and NBSK demand As further restrictions are imposed, older smaller paper machines will be tightly squeezed, leaving the new high-speed machines that use NBSK running A weak USD, falling North American demand and poor economic performance is forcing the closure of non-competitive paper capacity, especially in Europe This is not expected to si gnificantly reduce demand for NBSK because some of these closures rely on integrated, rather than market, pulp and because a similar volume of paper will be produced, just by a smaller number of producers Tissue will continue to be an important growth segment for NBSK 20

BC Mountain Pine Beetle The situation is still evolving Modelling predicts 50% of the BC Lodgepole pine inventory will be dead by 2008 with 77% dead by 2014 Pine is approximately 20-30% of BC timber base and up to 50% of the Central Interior timber base is Lodgepole pine Canfor Pulp Over Run regions in general are regions that have extensive volumes of pine Dead trees are beginning to have an impact on lumber Cariboo Pulpprocessing efficiency. Debate is underway on how long sawmill’s will be able to process the dead pine. It is estimated there will be a rap id drop beginning 2016 Situation is proving to be a ST opportunity – harvesting the dead/dying trees in Central BC is LEGENDallowing stands close to Celgar to SEVERITY OF ATTACKgrow HighKamloops Pulp Proximity to higher growth SevereSouthern BC stands will be a Very Severecompetitive advantage in the Over runmedium term Tembec Pulp Mill Celgar Location

Transition to Bio-energy Economics Pulp in a Carbon World Unless there is a change in how customers value forest or wood based products, the industry will not continue in its current state, creating capacity decline which will continue to affect supply and demand fundamentals until prices rise high enough to reflect the energy value of wood Over time, a levelling of the playing field on wood cost will occur between Northern and Southern mills as the cost of land for plantations is driven up by higher value products competing On a global basis, wood will reflect and possibly exceed its fossil fuel energy value, reflecting the carbon neutrality of wood Mercer’s position as a large net exporter of bio-energy puts it in a unique position to benefit from this opportunity

Mercer’s impressive financial performance Quarterly Revenue Growth 200 175 Revenue Growth200520062007150 125 Revenues (EUR)531,908623,977704,391100 75 50 Revenues (USD) 1 662,013783,715965,72025 Revenue (Millions of EUR) 0 41’07’08 Q1’04 Q3’0 Q1’05 Q3’05 Q1’06 Q3’06 Q Q3’07 Q1 Mercer has experienced exceptional growth, with a 46% increase in revenue and a 100% increase in EBITDA from 2005’s performance in USD In 2007, Mercer’s revenues have grown to approximately $1 billion USD Rolling LTM EBITDA 160 140 120 EBITDA Growth200520062007100 80 EBITDA (EUR)69,810148,338126,74460 40 EBITDA (USD) 186,886186,313173,76620 EBITDA (Millions of EUR 0 44 5 5 6 6 7 7 8 Q1’0 Q3’0 1’0 3’03’0’0 Q QQ1’0 QQ1’0 Q3’0 Q1 1Indicative results using EUR/USD FX rate of 1.2446, 1.256, 1.371 in 2005, 2006 and 2007, respectively.

Advantageous financial structure Mercer’s levered capital structure is highly beneficial German Government provided Mercer€ 375 million in grants for the construction of the Rosenthal and Stendal mills. This amount is credited against fixed assets and translates into€ 375 million in equity or debt that the company did not have to raise Mercer’s€ 565 million Stendal debt is 80% guaranteed by the German Governme nt, is fixed at an interest rate of approximately 5.3% plus margins and costs, and is secured by the mill’s own assets The debt has provisions for cross-currency swaps with no required margins It is an amortizing debt with no immediate balloon payments Our principal payments are effectively made in pre-tax dollars due to Mercer’s tax shields Unsecured convertible debt of USD $67.5 million at 8.5% with a conversion factor of 7.75; redeemable by the company starting Oct. 15th, 2008, maturing Oc t. 15th, 2010 Unsecured senior notes of USD $310 million at 9.25%, maturing Feb. 15th, 2013

Mercer average daily pulp production Average Daily Production by Mill Rosenthal Celgar Stendal 2,000 1,800 1,6001,734 1,4001,5341,644 1,2001,349 1,0001,2471,254 800918901929 600 Average Daily Production (ADMT)400 200 - - 2005 2006 2007 Mercer has steadily increased the productivity at all of its mills

World class assets — Celgar Modern and efficient mill Capacity of 480,000 ADMT per year 16.6% reduction in non-fiber conversion costs from 2006 Mercer’s Blue Goose capital project has exceeded expectations, delivering greater savings per tonne of production In 2007, became a net exporter of electricity Recently announced the approval of the Celgar Green Energy Project, which will double the mill’s generating capacity Celgar’s energy opportunities fit well with the BC Government’s focus on securing large amounts of green renewable electricity Excellent location with proximity to fiber basket and ability to service growing Asian and North American Markets

World class assets — Rosenthal Converted to kraft pulp production in 1999 Capacity has increased from 160,000 to 325,000 ADMTs Sets new standards for world class mill availability at 98.8% Efficient mill with strong cost position One of the lowest delivered costs to Europe Achieved a 10.1% reduction in non-fiber conversion costs from previous year Continued its drive for excellence with another year of record production volume Location has strong lumber supply and is near a central transportation hub, positioning the mill to service important European markets

World class assets — Stendal One of the newest and largest NBSK mills in the world 71% Mercer owned Capacity of 620,000 ADMTs per year Achieved world class mill availability of 94.0% in 2007 Economies of scale have allowed for lower conversion costs than Rosenthal Achieved a 26.4% reduction in non-fiber conversion costs in 2007 Non-fiber conversion costs were€96 (USD$132) per ADMT 667,000 MWh of electricity generated in 2007 273,000 MWh of green renewable energy was exported, generating revenues of€13.8 million (USD$18.9 million) in 2007 Location has strong forest base and is well positioned to service European and off-shore markets

Mercer’s key investment highlights Future supply/demand outlook for NBSK has never looked better World class mills that have low delivered costs and are located in excellent fiber baskets Insulated from risk of rising energy prices due to excess electricity generating capacity Incremental production capacity available at low capital cost Unique financial structure offering shareholders very high leverage to the pulp cycle Strong shareholder focused management team and board