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 2015 ) including indefinitely curtailed mills , shows the demand capacity ratio ( demand divided by supply ) for osb from 2011 through 2015 as well as fea 's forecast through 2020 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 2008 through 2015 , as published by random lengths , an industry publication , is presented below . fea 's forecast ( as of december 2015 ) for average north central wholesale pricing for osb ( per thousand square feet 7/16 ” basis ) through 2020 is also shown . 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 2015 , 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 22 significantly . at december 31 , 2015 , 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 . events and changes in circumstances that may necessitate such a review include , but are not limited to : a significant decrease in the market price of a long-lived asset or group of long-lived assets ; a significant adverse change in the extent or manner in which a long-lived asset or group of long-lived assets is being used or in its physical condition ; a significant adverse change in legal factors or in the business climate that could affect the value of a long-lived asset or group of long-lived assets , including an adverse action or assessment by a regulator ; an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction of a long-lived asset or group of long-lived assets ; current-period operating or cash flow loss combined with a history of operating or cash flow losses or a projection or forecast that demonstrates continuing losses associated with the use of a long-lived asset or group of long-lived assets ; and current expectation that , more likely than not , a long-lived asset or group of long-lived assets will be sold or otherwise disposed of significantly before the end of its previously estimated useful life . story_separator_special_tag based upon canadian dollar selling prices , prices were 3 % higher due to unit price increases as well as changes in product mix . 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 . 30 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 . engineered wood products our ewp segment manufactures and distributes lvl/lsl , i-joists 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 osb is produced by our lsl 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_13_th sales in this segment by product line were as follows : replace_table_token_14_th percent changes in average sales prices and unit shipments for the year ended 2015 compared to 2014 and 2014 compared to 2013 are as follows : replace_table_token_15_th 2015 compared to 2014 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 changes in product mix and a price increase which was implemented in the later portion of 2014. osb prices increased due to changes in product mix which resulted in a 31 higher sales realizations . the increase in osb selling prices favorably impacted operating results and adjusted ebitda from continuing operations by approximately $ 3.5 million for 2015 as compared to 2014 . 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 . 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_16_th sales in this segment by sales office location were as follows : replace_table_token_17_th percent changes in average sales prices and unit shipments for the year ended 2015 compared to 2014 and 2014 compared to 2013 are as follows : replace_table_token_18_th 2015 compared to 2014 for our chilean operations , sales volumes increased due to higher demand due to improved housing activity . sales volumes in brazil decreased due to reduced demand associated with an economic recession slightly offset by higher exports . sales prices in chile declined for 2015 as compared to 2014 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 declined for 2015 as compared to 2014 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 % higher in 2015 as compared to 2014 and local currency selling prices in brazil were about 10 % higher in 2015 as compared to 2014 . 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 also saw increased imports . sales volumes in brazil were slightly higher in 2014 compared to 2013 due to increased export sales . 32 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 . other our other products category includes our remaining timber and timberlands and other minor products , services and closed operations which are not classified as discontinued operations . additionally , our other products category included our u.s. greenfiber joint venture interest and certain costs associated with our moulding operations , both of which were sold during 2013. sales , operating losses and adjusted ebitda from continuing operations for this category were as follows : replace_table_token_19_th 2015 compared to 2014 operating results in our other products business improved for the year ended 2015 as compared to 2014 due to lower carrying costs on our closed operations . 2014 compared to 2013 operating results in our other products businesses were higher due to the elimination of the losses associated with our previous joint venture interest in u.s. greenfiber . general corporate and other expense , net net general corporate expense was $

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 or 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 . 35 operating activities during 2015 , we generated $ 29.2 million of cash from operations as compared to a use of $ 52.9 million of cash from operations in 2014 . this change reflects improved results of operations for 2015. our trade receivables decreased $ 13.5 million during 2015 .


 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 or 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 . 35 operating activities during 2015 , we generated $ 29.2 million of cash from operations as compared to a use of $ 52.9 million of cash from operations in 2014 . this change reflects improved results of operations for 2015. our trade receivables decreased $ 13.5 million during 2015 .
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 Suspicious Activity Report : 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 2015 ) including indefinitely curtailed mills , shows the demand capacity ratio ( demand divided by supply ) for osb from 2011 through 2015 as well as fea 's forecast through 2020 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 2008 through 2015 , as published by random lengths , an industry publication , is presented below . fea 's forecast ( as of december 2015 ) for average north central wholesale pricing for osb ( per thousand square feet 7/16 ” basis ) through 2020 is also shown . 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 2015 , 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 22 significantly . at december 31 , 2015 , 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 . events and changes in circumstances that may necessitate such a review include , but are not limited to : a significant decrease in the market price of a long-lived asset or group of long-lived assets ; a significant adverse change in the extent or manner in which a long-lived asset or group of long-lived assets is being used or in its physical condition ; a significant adverse change in legal factors or in the business climate that could affect the value of a long-lived asset or group of long-lived assets , including an adverse action or assessment by a regulator ; an accumulation of costs significantly in excess of the amount originally expected for the acquisition or construction of a long-lived asset or group of long-lived assets ; current-period operating or cash flow loss combined with a history of operating or cash flow losses or a projection or forecast that demonstrates continuing losses associated with the use of a long-lived asset or group of long-lived assets ; and current expectation that , more likely than not , a long-lived asset or group of long-lived assets will be sold or otherwise disposed of significantly before the end of its previously estimated useful life . story_separator_special_tag based upon canadian dollar selling prices , prices were 3 % higher due to unit price increases as well as changes in product mix . 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 . 30 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 . engineered wood products our ewp segment manufactures and distributes lvl/lsl , i-joists 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 osb is produced by our lsl 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_13_th sales in this segment by product line were as follows : replace_table_token_14_th percent changes in average sales prices and unit shipments for the year ended 2015 compared to 2014 and 2014 compared to 2013 are as follows : replace_table_token_15_th 2015 compared to 2014 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 changes in product mix and a price increase which was implemented in the later portion of 2014. osb prices increased due to changes in product mix which resulted in a 31 higher sales realizations . the increase in osb selling prices favorably impacted operating results and adjusted ebitda from continuing operations by approximately $ 3.5 million for 2015 as compared to 2014 . 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 . 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_16_th sales in this segment by sales office location were as follows : replace_table_token_17_th percent changes in average sales prices and unit shipments for the year ended 2015 compared to 2014 and 2014 compared to 2013 are as follows : replace_table_token_18_th 2015 compared to 2014 for our chilean operations , sales volumes increased due to higher demand due to improved housing activity . sales volumes in brazil decreased due to reduced demand associated with an economic recession slightly offset by higher exports . sales prices in chile declined for 2015 as compared to 2014 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 declined for 2015 as compared to 2014 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 % higher in 2015 as compared to 2014 and local currency selling prices in brazil were about 10 % higher in 2015 as compared to 2014 . 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 also saw increased imports . sales volumes in brazil were slightly higher in 2014 compared to 2013 due to increased export sales . 32 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 . other our other products category includes our remaining timber and timberlands and other minor products , services and closed operations which are not classified as discontinued operations . additionally , our other products category included our u.s. greenfiber joint venture interest and certain costs associated with our moulding operations , both of which were sold during 2013. sales , operating losses and adjusted ebitda from continuing operations for this category were as follows : replace_table_token_19_th 2015 compared to 2014 operating results in our other products business improved for the year ended 2015 as compared to 2014 due to lower carrying costs on our closed operations . 2014 compared to 2013 operating results in our other products businesses were higher due to the elimination of the losses associated with our previous joint venture interest in u.s. greenfiber . general corporate and other expense , net net general corporate expense was $

