supply of building products osb is a commodity product , and it is , along with all of our products , subject to competition from manufacturers worldwide . product supply is influenced primarily by fluctuations in available manufacturing capacity and imports . according to fea ( forest economic advisors , llc ) , total north american osb annual production capacity is projected to increase by approximately 1.6 billion square feet in the period from 2015 to 2018 while plywood production capacity is projected to increase by 0.2 billion square feet for the same period . according to fea , osb accounted for approximately 66 % of north american structural panel production capacity in 2014 , with plywood accounting for the remainder . putting demand and supply together as noted above , demand for building products is influenced by the general economy , demographics and need for housing . in the case of osb , generally , lower demand coupled with higher production capacity will result in lower pricing . the chart below , as calculated by fea ( as of december 2014 ) , shows the demand capacity ratio ( demand divided by supply ) for osb in 2010 through 2014 as well as fea 's forecast through 2018 based upon estimated future demand and supply . 21 product pricing . historical prices for our products have been volatile , and we , like other participants in the building products industry , have limited influence over the timing and extent of price changes for our products . the estimated average north central wholesale price for osb ( per thousand square feet 7/16 ” basis ) from 2007 through 2014 , as published by random lengths , an industry publication , is presented below . fea 's forecast ( as of december 2014 ) for average north central wholesale pricing for osb ( per thousand square feet 7/16 ” basis ) through 2018 is also shown . 22 critical accounting policies and significant estimates a discussion of our significant accounting policies and significant accounting estimates and judgments is presented in note 1 of the notes to the financial statements in item 8 of this report . throughout the preparation of the financial statements , we employ significant judgments in the application of accounting principles and methods . these judgments are primarily related to the assumptions used to arrive at various estimates . for 2014 , these significant accounting estimates and judgments include : legal contingencies . our estimates of loss contingencies for legal proceedings are based on various judgments and assumptions regarding the potential resolution or disposition of the underlying claims and associated costs . in making judgments and assumptions regarding legal contingencies for ongoing class action settlements , we consider , among other things , discernible trends in the rate of claims asserted and related damage estimates and information obtained through consultation with statisticians and economists , including statistical analysis of potential outcomes based on experience to date and the experience of third parties who have been subject to product-related claims judged to be comparable . due to the numerous variables associated with these judgments and assumptions , both the precision and reliability of the resulting estimates of the related loss contingencies are subject to substantial uncertainties . we regularly monitor our estimated exposure to these contingencies and , as additional information becomes known , may change our estimates significantly . environmental contingencies . our estimates of loss contingencies for environmental matters are based on various judgments and assumptions . these estimates typically reflect judgments and assumptions relating to the probable nature , magnitude and timing of required investigation , remediation and or monitoring activities and the probable cost of these activities , and in some cases reflect judgments and assumptions relating to the obligation or willingness and ability of third parties to bear a proportionate or allocated share of the cost of these activities , including third parties who purchased assets from us subject to environmental liabilities . we consider the ability of third parties to pay their apportioned cost when developing our estimates . in making these judgments and assumptions related to the development of our loss contingencies , we consider , among other things , the activity to date at particular sites , information obtained through consultation with applicable regulatory authorities and third-party consultants and contractors and our historical experience at other sites that are judged to be comparable . due to the numerous variables associated with these judgments and assumptions , and the effects of changes in governmental regulation and environmental technologies , both the precision and reliability of the resulting estimates of the related contingencies are subject to substantial uncertainties . we regularly monitor our estimated exposure to environmental loss contingencies and , as additional information becomes known , may change our estimates significantly . at december 31 , 2014 , we excluded from our estimates approximately $ 2.3 million of potential environmental liabilities that we estimate will be allocated to third parties pursuant to existing and anticipated future cost sharing arrangements . impairment of long-lived assets . we review the long-lived assets held and used by us ( primarily property , plant and equipment and timber and timberlands ) for impairment when events or changes in circumstances indicate that the carrying amount of assets may not be recoverable . we consider the necessity of undertaking such a review at least quarterly , and also when certain events or changes in circumstances occur . story_separator_special_tag sales prices decreased for 2014 as compared to 2013 for our commodity osb products as discussed in the osb segment above . volumes of commodity osb were lower as compared to 2013 due to increases in siding volume , which reduced the production capacity available for osb , and log outages . overall , the reduction in operating results for our siding segment for 2014 compared to 2013 was due to decreased osb volume , higher raw material ( primarily logs ) and transportation costs which were partially offset by higher siding sales . 2013 compared to 2012 siding sales volumes increased in our smartside ® siding line due to continued penetration in several key focus markets including retail , repair and remodel markets , sheds and increased housing demand . sales prices in our smartside siding product as compared to the prior year increased due primarily to changes in product mix as well as price increases implemented to offset increases in raw material costs . sales volumes declined slightly in our canexel siding lines due to lower demand in canada and international sales , primarily europe . sales prices were down slightly between years due to the impact of the fluctuations in the canadian dollar related to the u.s dollar . sales prices in the canadian dollar increased by 3 % between years . sales prices increased for our commodity osb products as described in the discussion of our osb segment above . the increase in selling price favorably impacted operating results and adjusted ebitda from continuing operations by approximately $ 3 million for 2013 as compared to 2012 . 31 overall , the increases in operating results for our siding segment for 2013 as compared to 2012 were due to increased osb pricing and higher sales volumes in our smartside ® siding line . engineered wood products our ewp segment manufactures and distributes lvl , i-joists , lsl and other related products . this segment also includes the sale of i-joist and lvl products produced by our joint venture with resolute forest products and under a sales and marketing arrangement with murphy plywood . included in this segment is a plywood mill , which primarily produces plywood as a by-product from the lvl production process . also a minor amount of osb are produced by our lvl facility . our strategy is to strengthen our brand name recognition in the ewp market by enhancing our product mix and quality , providing superior technical support to our customers and leveraging our sales and marketing relationships to cross-sell our ewp products . additionally , we are seeking to drive costs down by rationalizing our production capacity across geographic areas and improving operating efficiencies in our manufacturing facilities . segment sales , operating ( losses ) and adjusted ebitda from continuing operations for this segment were as follows : replace_table_token_12_th sales in this segment by product line were as follows : replace_table_token_13_th percent changes in average sales prices and unit shipments for the year ended 2014 compared to 2013 and 2013 compared to 2012 are as follows : replace_table_token_14_th 2014 compared to 2013 sales volumes increased in lvl/lsl and i-joist due to improved market demand due to increased housing starts . net average selling prices increased due to implemented price increases . 2013 compared to 2012 32 sales volumes increased in lvl/lsl and i-joist due to increased demand in the u.s. housing market with offsetting reductions in exports . net average selling prices increased due to price increases implemented to offset higher raw material costs . the results of operations were lower for 2013 as compared to 2012 due to increases in raw material costs , primarily osb and lumber , which were partially offset by increases in sales prices . south america our south america segment manufactures and distributes osb structural panel and siding products in south america . we operate in two geographic areas of south america , chile and brazil . replace_table_token_15_th sales in this segment by production location were as follows : replace_table_token_16_th percent changes in average sales prices and unit shipments for the year ended 2014 compared to 2013 and 2013 compared to 2012 are as follows : replace_table_token_17_th 2014 compared to 2013 for our chilean operations , sales volumes were lower due to issues related to a political transition in chile which has slowed housing activity . we are also seeing increased imports . sales volumes in brazil were slightly higher in 2014 compared to 2013 due to increased export sales . sales prices in chile declined for 2014 as compared to 2013 due to pricing pressure from increased imports and the impact of the fluctuations in the chilean peso relative to the u.s. dollar as a majority of these sales are in local markets . sales prices in brazil increased slightly for 2014 as compared to 2013 due to the impact of the fluctuations in the brazilian real relative to the u.s. dollar as a majority of these sales are in local markets . local currency selling prices in chile were 2 % lower in 2014 as compared to 2013 and local currency selling prices in brazil were about flat with the prior year . 2013 compared to 2012 in our chilean operations , sales volumes decreased due to increased imports from north america . sales volumes in brazil decreased due to reduced production related to maintenance work completed on its press during the year . 33 sales prices in chile increased in 2013 , as compared to 2012 due to price increases implemented . sales prices in brazil increased slightly due to the impact of the fluctuations in the brazilian real related to the u.s. dollar as a majority of these sales are in local markets . local currency selling prices in chile increased by ( 2 ) % and local currency selling prices in brazil increased by ( 1 ) % in 2013 as compared to 2012. other our other products category

liquidity and capital resources overview our principal sources of liquidity are existing cash and investment balances , cash generated by our operations and our ability to borrow under such credit facilities as we may have in effect from time to time . we may also from time to time issue and sell equity , debt or hybrid securities or engage in other capital market transactions . our principal uses of liquidity are paying the costs and expenses associated with our operations , servicing outstanding indebtedness and making capital expenditures . we may also from time to time prepay or repurchase outstanding indebtedness , acquire assets or businesses that are complementary to our operations . any such repurchases may be commenced , suspended , discontinued or resumed , and the method or methods of effecting any such repurchases may be changed , at any time or from time to time without prior notice . operating activities during 2014 , we used $ 52.9 million of cash for operations as compared to generating $ 242.5 million of cash from operations in 2013 . this change reflects decreased results of operations for 2014. our trade receivables increased $ 26.9 million during 2014. our trade accounts payable decreased by $ 2.8 million during 2014 primarily due to the decreases in raw material inventory and our salary and wages payable decreasing by $ 10.9 million due to timing of payroll disbursements as well aslower management accruals .


 Write a concise suspicious activity report of the following text delimited by triple backquotes. Return your response as a formal report which covers the key points highlighting the location,dates,entity names and account holder information in chronological order of the text.
     ```liquidity and capital resources overview our principal sources of liquidity are existing cash and investment balances , cash generated by our operations and our ability to borrow under such credit facilities as we may have in effect from time to time . we may also from time to time issue and sell equity , debt or hybrid securities or engage in other capital market transactions . our principal uses of liquidity are paying the costs and expenses associated with our operations , servicing outstanding indebtedness and making capital expenditures . we may also from time to time prepay or repurchase outstanding indebtedness , acquire assets or businesses that are complementary to our operations . any such repurchases may be commenced , suspended , discontinued or resumed , and the method or methods of effecting any such repurchases may be changed , at any time or from time to time without prior notice . operating activities during 2014 , we used $ 52.9 million of cash for operations as compared to generating $ 242.5 million of cash from operations in 2013 . this change reflects decreased results of operations for 2014. our trade receivables increased $ 26.9 million during 2014. our trade accounts payable decreased by $ 2.8 million during 2014 primarily due to the decreases in raw material inventory and our salary and wages payable decreasing by $ 10.9 million due to timing of payroll disbursements as well aslower management accruals .
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 Suspicious Activity Report : supply of building products osb is a commodity product , and it is , along with all of our products , subject to competition from manufacturers worldwide . product supply is influenced primarily by fluctuations in available manufacturing capacity and imports . according to fea ( forest economic advisors , llc ) , total north american osb annual production capacity is projected to increase by approximately 1.6 billion square feet in the period from 2015 to 2018 while plywood production capacity is projected to increase by 0.2 billion square feet for the same period . according to fea , osb accounted for approximately 66 % of north american structural panel production capacity in 2014 , with plywood accounting for the remainder . putting demand and supply together as noted above , demand for building products is influenced by the general economy , demographics and need for housing . in the case of osb , generally , lower demand coupled with higher production capacity will result in lower pricing . the chart below , as calculated by fea ( as of december 2014 ) , shows the demand capacity ratio ( demand divided by supply ) for osb in 2010 through 2014 as well as fea 's forecast through 2018 based upon estimated future demand and supply . 21 product pricing . historical prices for our products have been volatile , and we , like other participants in the building products industry , have limited influence over the timing and extent of price changes for our products . the estimated average north central wholesale price for osb ( per thousand square feet 7/16 ” basis ) from 2007 through 2014 , as published by random lengths , an industry publication , is presented below . fea 's forecast ( as of december 2014 ) for average north central wholesale pricing for osb ( per thousand square feet 7/16 ” basis ) through 2018 is also shown . 22 critical accounting policies and significant estimates a discussion of our significant accounting policies and significant accounting estimates and judgments is presented in note 1 of the notes to the financial statements in item 8 of this report . throughout the preparation of the financial statements , we employ significant judgments in the application of accounting principles and methods . these judgments are primarily related to the assumptions used to arrive at various estimates . for 2014 , these significant accounting estimates and judgments include : legal contingencies . our estimates of loss contingencies for legal proceedings are based on various judgments and assumptions regarding the potential resolution or disposition of the underlying claims and associated costs . in making judgments and assumptions regarding legal contingencies for ongoing class action settlements , we consider , among other things , discernible trends in the rate of claims asserted and related damage estimates and information obtained through consultation with statisticians and economists , including statistical analysis of potential outcomes based on experience to date and the experience of third parties who have been subject to product-related claims judged to be comparable . due to the numerous variables associated with these judgments and assumptions , both the precision and reliability of the resulting estimates of the related loss contingencies are subject to substantial uncertainties . we regularly monitor our estimated exposure to these contingencies and , as additional information becomes known , may change our estimates significantly . environmental contingencies . our estimates of loss contingencies for environmental matters are based on various judgments and assumptions . these estimates typically reflect judgments and assumptions relating to the probable nature , magnitude and timing of required investigation , remediation and or monitoring activities and the probable cost of these activities , and in some cases reflect judgments and assumptions relating to the obligation or willingness and ability of third parties to bear a proportionate or allocated share of the cost of these activities , including third parties who purchased assets from us subject to environmental liabilities . we consider the ability of third parties to pay their apportioned cost when developing our estimates . in making these judgments and assumptions related to the development of our loss contingencies , we consider , among other things , the activity to date at particular sites , information obtained through consultation with applicable regulatory authorities and third-party consultants and contractors and our historical experience at other sites that are judged to be comparable . due to the numerous variables associated with these judgments and assumptions , and the effects of changes in governmental regulation and environmental technologies , both the precision and reliability of the resulting estimates of the related contingencies are subject to substantial uncertainties . we regularly monitor our estimated exposure to environmental loss contingencies and , as additional information becomes known , may change our estimates significantly . at december 31 , 2014 , we excluded from our estimates approximately $ 2.3 million of potential environmental liabilities that we estimate will be allocated to third parties pursuant to existing and anticipated future cost sharing arrangements . impairment of long-lived assets . we review the long-lived assets held and used by us ( primarily property , plant and equipment and timber and timberlands ) for impairment when events or changes in circumstances indicate that the carrying amount of assets may not be recoverable . we consider the necessity of undertaking such a review at least quarterly , and also when certain events or changes in circumstances occur . story_separator_special_tag sales prices decreased for 2014 as compared to 2013 for our commodity osb products as discussed in the osb segment above . volumes of commodity osb were lower as compared to 2013 due to increases in siding volume , which reduced the production capacity available for osb , and log outages . overall , the reduction in operating results for our siding segment for 2014 compared to 2013 was due to decreased osb volume , higher raw material ( primarily logs ) and transportation costs which were partially offset by higher siding sales . 2013 compared to 2012 siding sales volumes increased in our smartside ® siding line due to continued penetration in several key focus markets including retail , repair and remodel markets , sheds and increased housing demand . sales prices in our smartside siding product as compared to the prior year increased due primarily to changes in product mix as well as price increases implemented to offset increases in raw material costs . sales volumes declined slightly in our canexel siding lines due to lower demand in canada and international sales , primarily europe . sales prices were down slightly between years due to the impact of the fluctuations in the canadian dollar related to the u.s dollar . sales prices in the canadian dollar increased by 3 % between years . sales prices increased for our commodity osb products as described in the discussion of our osb segment above . the increase in selling price favorably impacted operating results and adjusted ebitda from continuing operations by approximately $ 3 million for 2013 as compared to 2012 . 31 overall , the increases in operating results for our siding segment for 2013 as compared to 2012 were due to increased osb pricing and higher sales volumes in our smartside ® siding line . engineered wood products our ewp segment manufactures and distributes lvl , i-joists , lsl and other related products . this segment also includes the sale of i-joist and lvl products produced by our joint venture with resolute forest products and under a sales and marketing arrangement with murphy plywood . included in this segment is a plywood mill , which primarily produces plywood as a by-product from the lvl production process . also a minor amount of osb are produced by our lvl facility . our strategy is to strengthen our brand name recognition in the ewp market by enhancing our product mix and quality , providing superior technical support to our customers and leveraging our sales and marketing relationships to cross-sell our ewp products . additionally , we are seeking to drive costs down by rationalizing our production capacity across geographic areas and improving operating efficiencies in our manufacturing facilities . segment sales , operating ( losses ) and adjusted ebitda from continuing operations for this segment were as follows : replace_table_token_12_th sales in this segment by product line were as follows : replace_table_token_13_th percent changes in average sales prices and unit shipments for the year ended 2014 compared to 2013 and 2013 compared to 2012 are as follows : replace_table_token_14_th 2014 compared to 2013 sales volumes increased in lvl/lsl and i-joist due to improved market demand due to increased housing starts . net average selling prices increased due to implemented price increases . 2013 compared to 2012 32 sales volumes increased in lvl/lsl and i-joist due to increased demand in the u.s. housing market with offsetting reductions in exports . net average selling prices increased due to price increases implemented to offset higher raw material costs . the results of operations were lower for 2013 as compared to 2012 due to increases in raw material costs , primarily osb and lumber , which were partially offset by increases in sales prices . south america our south america segment manufactures and distributes osb structural panel and siding products in south america . we operate in two geographic areas of south america , chile and brazil . replace_table_token_15_th sales in this segment by production location were as follows : replace_table_token_16_th percent changes in average sales prices and unit shipments for the year ended 2014 compared to 2013 and 2013 compared to 2012 are as follows : replace_table_token_17_th 2014 compared to 2013 for our chilean operations , sales volumes were lower due to issues related to a political transition in chile which has slowed housing activity . we are also seeing increased imports . sales volumes in brazil were slightly higher in 2014 compared to 2013 due to increased export sales . sales prices in chile declined for 2014 as compared to 2013 due to pricing pressure from increased imports and the impact of the fluctuations in the chilean peso relative to the u.s. dollar as a majority of these sales are in local markets . sales prices in brazil increased slightly for 2014 as compared to 2013 due to the impact of the fluctuations in the brazilian real relative to the u.s. dollar as a majority of these sales are in local markets . local currency selling prices in chile were 2 % lower in 2014 as compared to 2013 and local currency selling prices in brazil were about flat with the prior year . 2013 compared to 2012 in our chilean operations , sales volumes decreased due to increased imports from north america . sales volumes in brazil decreased due to reduced production related to maintenance work completed on its press during the year . 33 sales prices in chile increased in 2013 , as compared to 2012 due to price increases implemented . sales prices in brazil increased slightly due to the impact of the fluctuations in the brazilian real related to the u.s. dollar as a majority of these sales are in local markets . local currency selling prices in chile increased by ( 2 ) % and local currency selling prices in brazil increased by ( 1 ) % in 2013 as compared to 2012. other our other products category

